You can get an unlimited data plan from £9.99/month, allowing you to download as much as you like. Compare the UK’s best unlimited data SIM cards.

Unlimited Data PlansWhether you’re a heavy smartphone user or whether you just want the reassurance that you’ll never run out of data, most UK mobile networks now offer an unlimited data plan so you can download as much as you like.

In total, there are currently 14 mobile networks that offer an unlimited data plan in the UK. Most of them offer 5G coverage at no extra cost. The cheapest unlimited data plans start from £9.99/month.

In this article, we’ll compare the best value unlimited data plans in the UK. We’ll start with an overview of the mobile networks with unlimited data. We’ll then look at the unlimited data plans on each mobile network in more detail, including any fair usage limits or restrictions that apply.

Unlimited Data Plans: From £9.99/month
With EE Coverage:
With O2 Coverage:
With Three Coverage:
With Vodafone Coverage:
Exclusive Offer: £12.50/month for unlimited data on Lebara
(use the KEN3 voucher code to get 3 months half price, reverts to £25/month)
Unlimited Data No Contract:

Overview of Unlimited Data Plans

Best Unlimited Data Plans

In the UK, there are currently fourteen mobile networks that offer an unlimited data plan.

The following table shows the cheapest unlimited data plans that are currently available on each network:

NetworkMinutesTextsDataMonthly Cost
(may rise during contract)
SmartyUnlimitedUnlimitedUnlimited£16.00
1 month
TalkmobileUnlimitedUnlimitedUnlimited£16.00
1 month
iD MobileUnlimitedUnlimitedUnlimited£16.00
24 months
ThreeUnlimitedUnlimitedUnlimited£20.00
24 months
ASDA MobileUnlimitedUnlimitedUnlimited
2Mbps max
£20.00
1 month
Honest MobileUnlimitedUnlimitedUnlimited£22.50
12 months
Lebara MobileUnlimitedUnlimitedUnlimited£22.50
3 months half price
12 months
Tesco MobileUnlimitedUnlimitedUnlimited£25.00
24 months
LycamobileUnlimitedUnlimitedUnlimited£25.00
£9.99 for 6 months
1 month
VodafoneUnlimitedUnlimitedUnlimited
10Mbps max
£30.00
24 months
O2UnlimitedUnlimitedUnlimited£31.00
24 months
VOXIUnlimitedUnlimitedUnlimited£35.00
1 month
giffgaffUnlimitedUnlimitedUnlimited£35.00
1 month

Coverage, Speeds & Limitations

When choosing an unlimited data SIM card, it’s important to consider the coverage you’ll get on it, along with any fair usage limits or restrictions.

The following table shows a summary of this information for each UK network:

Mobile Network Coverage Provider Speed Key Limits & Restrictions
ASDA Mobile Vodafone 5G
  • Speed restrictions apply (2Mbps, 10Mbps or 150Mbps)
EE EE 5G
  • Speed restrictions may apply (10Mbps, 100Mbps or uncapped)
  • 600GB monthly fair usage
  • 12 devices tethering & hotspot
giffgaff O2 5G
  • 650GB monthly fair usage
  • 12 devices tethering & hotspot
  • 80-120GB speed reduction (Always-On)
Honest Mobile Three 5G
  • 650GB monthly fair usage
iD Mobile Three 5G
Lebara Mobile Vodafone 5G
Lyca Mobile EE 5G
  • 450GB monthly fair usage
  • No tethering & hotspot
O2 O2 5G
  • 650GB monthly fair usage
  • 12 devices tethering & hotspot
  • No 4G routers
SMARTY Three 5G
Talkmobile Vodafone 5G
Tesco Mobile O2 5G
  • No 4G routers
Three Three 5G
Vodafone Vodafone 5G
  • Speed restrictions on Unlimited (10Mbps) and Lite (2Mbps)
  • No speed restrictions on Unlimited Max.
VOXI Vodafone 5G

For further information about the unlimited data plans on each network, read on to learn more about unlimited data on each network.

Unlimited Data Plans: By Mobile Network

At present, you can get an unlimited data plan from 14 UK mobile networks. In the following section, we’ll look at the unlimited data plans on each mobile network in more detail:

ASDA Mobile

At present, ASDA Mobile is offering a choice of unlimited data SIM cards from £20 per month. You’ll get access to 4G & 5G coverage from Vodafone.

You can choose from three different plans, each of which has unlimited data. The key difference is the download speed that you’re able to get:

  • The £20 Unlimited Value plan gives you download speeds of up to 2Mbps. This is equivalent to a basic 3G connection. It’s enough for most day-to-day usage such as browsing the web, using messaging applications, listening to music, and watching standard-definition video. However, you won’t be able to streaming HD-quality videos, nor will you be able to make HD-quality calls. Downloads may also take a long time on this plan.
  • The £22 Unlimited Speedy plan gives you download speeds of up to 10Mbps (equivalent to a basic 4G connection). This allows you to stream in HD and to make HD-quality video calls on your phone. You’ll also get a far better experience when downloading and sharing files on your phone.
  • The £24 Unlimited Superfast plan gives you download speeds of up to 150Mbps. You should choose this plan if you want to fully benefit from ASDA Mobile’s 5G speeds. It will allow you to do pretty much anything you’d like to do on your phone, including downloading large files and watching online videos in 4K ultra-HD quality.

ASDA Mobile’s unlimited data plans are shown in the following table:

NetworkMinutesTextsDataMonthly Cost
ASDA MobileUnlimitedUnlimitedUnlimited
2Mbps max
£20.00
ASDA MobileUnlimitedUnlimitedUnlimited
10Mbps max
£22.00
ASDA MobileUnlimitedUnlimitedUnlimited
150Mbps max
£24.00

There’s no contract and no credit check required on ASDA Mobile. This means you can easily change or cancel your plan at any time.

Price Fair Use Speed Limits Network

£20/month

Personal use only

2Mbps (£20 plan)
10Mbps (£22 plan)
150Mbps (£24 plan)

5G coverage
(powered by Vodafone)

For more information, see our ASDA Mobile unlimited data review.

Source: ASDA Mobile Unlimited Data Plan
Tariff Information: ASDA Mobile Website

EE

On EE, you can get unlimited data from £27 per month (reduced to just £10 per month if you have an eligible EE home broadband plan). The download speeds and features available will depend on the type of plan you choose.

The cheapest way to get unlimited data on EE is to get one of their No Frills unlimited data plans from £27 per month. This will have a maximum download speed of 10Mbps (roughly equivalent to a basic 4G connection):

TariffMinutesTextsDataMonthly Cost
(may rise during contract)
No FrillsUnlimitedUnlimitedUnlimited
10Mbps max
£27.00
24 months

For download speeds of up to 100Mbps and the ability to gift up to 100GB of spare data to another EE SIM card on your account, you can upgrade to an EE Essentials unlimited data plan from £32 per month:

TariffMinutesTextsDataMonthly Cost
(may rise during contract)
EssentialUnlimitedUnlimitedUnlimited£32.00
12 months
EssentialUnlimitedUnlimitedUnlimited£33.00
1 month
EssentialUnlimitedUnlimitedUnlimited£33.00
24 months

Meanwhile, if you’re looking for uncapped download speeds and Inclusive Extras on your plan, choose one of EE’s All Rounder or Full Works SIM cards.

With All Rounder, you can choose to have one Inclusive Extra for the lifetime of your plan. Options include Apple Music, Netflix, the Roam Abroad Pass, TNT Sports on discovery+, the Xbox Game Pass Ultimate, or Microsoft 365 Personal. Depending on the option you choose, this Inclusive Extra is worth up to £25 per month.

TariffMinutesTextsDataMonthly Cost
(may rise during contract)
All RounderUnlimitedUnlimitedUnlimited£38.00
12 months

EE’s Full Works plans come with three Inclusive Extras such as Apple Music, Apple TV+, Apple Arcade, TNT Sports Ultimate on discovery+, and the Roam Abroad Pass:

TariffMinutesTextsDataMonthly Cost
(may rise during contract)
Full WorksUnlimitedUnlimitedUnlimited£43.00
24 months
Full WorksUnlimitedUnlimitedUnlimited£45.00
12 months

There are three key restrictions worth being aware on EE’s unlimited data plans:

  1. There’s a fair usage limit of 600GB per month, above which EE reserves the right to “apply traffic management controls to deprioritise your mobile traffic during busy periods or to move you to a business plan”. For customers who signed up before the 1st September 2020, this fair usage limit was 1,000GB per month.
  2. Tethering and personal hotspot usage is limited to a maximum of 12 devices.
  3. You can use your allowances abroad in Europe for £2.29 per day (unless you have the Roam Abroad Pass, in which case roaming is included). A data roaming limit of 50GB per month applies when you travel abroad outside the UK.

If you’re using the Data Gifting feature on an EE Family account, you’ll be able to gift up to 100GB of data to other users on your plan (or 120GB if you’re on a 5G handset plan with unlimited data). The Data Gifting feature is not available on the No Frills plan.

Price Fair Use Tethering Network

£27/month

600GB/month

12 devices

5G coverage
50GB data roaming limit in 47 European destinations (with £2.29 daily fee).
Speed limits apply on some plans (25Mbps on No Frills & 100Mbps on Essentials).

For more information, read our EE unlimited data review.

Source: EE Website
Tariff Information: EE Website

giffgaff

In the UK, giffgaff offers 4G & 5G coverage from O2, on a choice of one-month rolling plans and 18-month contracts, with no need for a credit check.

If you want unlimited data without speed restrictions, you’ll need to choose one of giffgaff’s £35 plans. This will give you unlimited minutes, unlimited texts, and unlimited data in the UK. You’ll get access to uncapped download speeds on 5G.

TariffMinutesTextsDataMonthly Cost
£35 Golden GoodybagUnlimitedUnlimitedUnlimited£35.00
1 month
£35 SIM Only ContractUnlimitedUnlimitedUnlimited£35.00
18 months

On giffgaff’s unlimited data plans, there’s a fair use limit of 650GB per month. In addition, giffgaff says you shouldn’t tether your phone to more than 12 devices at the same time.

Always-On data

For a cheaper alternative, you can get Always-On data from giffgaff. This will have a full-speed data allowance (between 80GB and 120GB per month, depending on the plan you choose).

Once the full-speed data allowance is used up, your download speeds will drop to a maximum of 384kbps between 8am and midnight each day (about 0.4Mbps). This is roughly equivalent to the speed of a basic 3G connection. It won’t stop you from browsing the internet or sending messages through WhatsApp. However, things like online video streaming are unlikely to work at this reduced speed.

TariffMinutesTextsDataMonthly Cost
£25 SIM Only ContractUnlimitedUnlimited120GB
+ Always On
£25.00
18 months
£25 Golden GoodybagUnlimitedUnlimited100GB
+ Always On
£25.00
1 month
£25 GoodybagUnlimitedUnlimited80GB
+ Always On
£25.00
1 month

If you’re travelling abroad to another European country, you’ll be able to use up to 5GB of data at no extra cost each month. Beyond this, a surcharge of 10p/MB will be charged against your Pay As You Go balance.

Price Fair Use Tethering Network

£35/month

650GB/month

12 devices

5G coverage
(powered by O2)
The £25 Always-On plans have a speed reduction to 384kbps (0.4Mbps) after 80GB, 100GB or 120GB per month.
5GB per month data roaming limit applies in Europe.

For more information, see our guide to unlimited data on giffgaff.

Source: giffgaff Website
Tariff Information: giffgaff Website

Honest Mobile

If you’re looking for unlimited data on an “ethical mobile network”, Honest Mobile offers unlimited data plans from £22.50/month. According to Honest, they’ll remove twice the carbon footprint of your smartphone, making them a carbon negative mobile network.

Honest Mobile offers 4G & 5G coverage from Three on the following unlimited data plans:

NetworkMinutesTextsDataMonthly Cost
Honest MobileUnlimitedUnlimitedUnlimited£22.50
12 months
Honest MobileUnlimitedUnlimitedUnlimited£25.00
1 month

In the UK, there’s a 650GB per month fair use limit, above which your service will be “limited to 3G speeds”. You’ll also get up to 20GB of EU roaming at no extra cost each month.

Price Fair Use Tethering Network

£22.50/month

650GB/month

No restrictions

5G coverage
(powered by Three)

For more information, read our Honest Mobile review.

Source: Honest Mobile Plan Terms
Tariff Information: Honest Mobile Website

iD Mobile

iD Mobile is the own-brand mobile network from the Carphone Warehouse. They offer 4G & 5G coverage from Three.

At present, iD Mobile offers the following unlimited data plans from £16/month:

NetworkMinutesTextsDataMonthly Cost
(may rise during contract)
iD MobileUnlimitedUnlimitedUnlimited£16.00
24 months
iD MobileUnlimitedUnlimitedUnlimited£16.00
12 months

iD Mobile haven’t published a fair usage policy for their unlimited data plan, but their terms and conditions say the plan is for “personal use only”. You’ll need to undergo a credit check when you join the iD Mobile network.

Price Fair Use Tethering Network

£16/month

Personal use only

No restrictions

5G coverage
(powered by Three)

Source: iD Mobile Terms and Conditions
Tariff Information: iD Mobile Website

Lebara Mobile

On Lebara Mobile, it’s currently possible to get unlimited 5G data for just £12.50 per month for 3 months (or just £11.25 per month when you sign up for 12 months).

The most popular and most flexible option is Lebara’s £25 unlimited data SIM. This comes on a one-month rolling basis, with no contract and no credit check required. You’ll also get unlimited UK minutes, unlimited UK texts, and 100 international minutes to 42 countries. As there’s no contract, you can change or cancel your plan at any time.

As an exclusive offer for our readers in February 2024, you can get 3 months half price when you order through this link, entering KEN3 as your voucher code at checkout. This will allow you to get the £25 unlimited data SIM for just £12.50 per month for 3 months.

NetworkMinutesTextsDataMonthly Cost
Lebara MobileUnlimited
+100 intl.
UnlimitedUnlimited£12.50
for 3 months, then £25/month
1 month
Lebara MobileUnlimited
+unltd intl.
UnlimitedUnlimited£15.00
for 3 months, then £30/month
1 month

For even bigger savings, you can sign up to Lebara on a 12-month plan. This will give you a further 10% off, bringing the price down to as little as £11.25 per month for 3 months (then £22.50 per month thereafter).

NetworkMinutesTextsDataMonthly Cost
Lebara MobileUnlimited
+100 intl.
UnlimitedUnlimited£11.25
for 3 months, then £22.50/month
12 months
Lebara MobileUnlimited
+unltd intl.
UnlimitedUnlimited£13.50
for 3 months, then £27/month
12 months

As before, you’ll need to enter KEN3 as your voucher code at checkout to get the 3 months half price.

According to Lebara Mobile, there are no usage caps on their unlimited data service, with exceptions for fraudulent usage and their general terms and conditions:

Where Unlimited data is included in a plan allowance, there is no data cap, subject to fraud exceptions. All general T&C will apply.

If you’re using your Lebara Mobile SIM card abroad in Europe, you can use up to 30GB data per month at no extra cost. If you use the entire 30GB allowance, you can choose to renew your plan early to get a fresh 30GB allowance. Alternatively, you can buy a 5GB roaming bolt-on for £10.

If you’re travelling abroad to India, you can use up to 10GB data per month at no extra cost on Lebara. You’ll also get 200 minutes and 200 texts to use in India each month.

Price Fair Use Tethering Network

£22.50/month

Subject to general T&C

No restrictions

5G coverage
(powered by Vodafone)
Data roaming limit of 30GB per month in Europe. 10GB per month roaming limit in India.

For more information, see our Lebara Mobile unlimited data review.

Source: Lebara Mobile Terms and Conditions
Tariff Information: Lebara Mobile Website

Lyca Mobile

On Lyca Mobile, it’s currently possible to get unlimited data for just £9.99/month for 6 months, then £25/month.

There’s no contract and no credit check on Lyca Mobile’s unlimited data plan. You’ll also get unlimited UK minutes, unlimited UK texts and 100 international minutes included on your plan every month.

NetworkMinutesTextsDataMonthly Cost
LycamobileUnlimitedUnlimitedUnlimited£9.99
for 6 months, then £25/month

There’s a fair use limit of 450GB per month in the UK, above which the speed of your service will reduce to 1Mbps (roughly equivalent to 3G speeds). You can use up to 12GB data per month at no extra cost when you’re travelling abroad in the EU. You’ll get access to 4G & 5G coverage from EE.

On Lyca Mobile, the use of tethering and personal hotspot is not permitted. For more information, see our guide to unlimited data on Lyca Mobile.

Price Fair Use Tethering Network

£25/month

450GB/month

Not permitted

5G coverage
(powered by EE)
Data roaming limit of 12GB per month in Europe.

Source: Lyca Mobile Website
Tariff Information: Lyca Mobile Website

O2

O2 offers unlimited data on a range of Pay Monthly SIM cards and handsets.

At present, you can get an O2 unlimited data SIM card from £31/month, with the lowest prices being available when you choose a 24-month plan:

NetworkMinutesTextsDataMonthly Cost
(may rise during contract)
O2UnlimitedUnlimitedUnlimited£31.00
24 months
O2UnlimitedUnlimitedUnlimited£33.00
12 months
O2UnlimitedUnlimitedUnlimited£36.00
1 month

You’ll get up to 3 months Apple Music included, along with 3 months of a different O2 Extra of your choice (such as Disney+, Amazon Prime Video, or Amazon Music).

If you upgrade to the more expensive ‘Unlimited Plus’ plans from O2, you’ll get up to 6 months of Apple Music included, along with 6 months of another O2 Extra. You’ll also get the O2 Travel Inclusive Zone Bolt-On included when you choose an Unlimited Plus plan.

On O2’s unlimited data plan, there are several fair usage limits worth being aware of. The most important is their 650GB per month fair usage limit. In addition, the use of tethering and personal hotspot is limited to a maximum of 12 devices. If you exceed these limits twice in any six-month period, O2 says they “reserve the right to transfer you to a more suitable plan”.

O2’s terms and conditions also require you to use their unlimited data SIM card inside a battery-powered mobile device. This is intended to prevent you from using the SIM card for 4G home broadband or 5G home broadband:

3.3 Unlimited UK Data sold on handset or SIMO contracts must only be used in mobile devices that do not require to be plugged in order to work. Any O2 mobile broadband Unlimited UK Data tariffs must only be used with the devices that they are sold with. Where other devices are used that do not comply with these terms, we reserve the right to transfer you to a more suitable plan.

If you’re travelling abroad to another European country, you can use up to 25GB of data abroad in O2 Europe Zone countries. In addition, if you’re a Virgin Media customer or if you choose an Unlimited Plus plan, you’ll be able to use your SIM card abroad in a further 27 O2 Travel Inclusive Zone countries at no extra cost (this is subject to speed restrictions after the first 150MB of general data usage each day, or after the first 50MB of streaming data usage each day).

Price Fair Use Tethering Network

£31/month

650GB/month

12 devices
No 4G routers

5G coverage
25GB monthly data roaming limit applies in O2 Europe Zone countries.

For more information, read our guide to O2’s unlimited data plans.

Source: O2 Website: Unlimited Plan Terms
Tariff Information: O2 Website

SMARTY

SMARTY is a low cost sub-brand of Three. They currently offer unlimited data for £16 on a one-month rolling basis (this is a special offer for February 2024).

On SMARTY, you’ll get unlimited minutes, unlimited texts and unlimited 5G data. You can also use the unlimited data SIM card in other devices like your tablet, dongle or mobile broadband router.

According to SMARTY, tethering and personal hotspot usage is included in the plan and there are no speed restrictions for using too much data. There is, however, a fair use limit of 12GB per month when you’re using your SMARTY SIM card abroad in Europe.

SMARTY offers 99% population coverage, using 4G and 5G coverage from Three.

NetworkMinutesTextsDataMonthly Cost
SmartyUnlimitedUnlimitedUnlimited£16.00
1 month

The following table shows a summary of the key things to know about unlimited data on SMARTY:

Price Fair Use Tethering Network

£16/month

No fair use limit

No restrictions

5G coverage
(powered by Three)
12GB per month data roaming limit applies in European countries.

For more information, see our SMARTY unlimited data review.

Source: SMARTY Website: Unlimited Plan
Tariff Information: SMARTY Website

Talkmobile

Talkmobile is a low-cost sub-brand of Vodafone. At present, they’re offering unlimited 5G data for just £16 per month on a one-month rolling basis, with access to Vodafone’s 5G network and their fastest available speeds. This makes it one of the best value ways of getting unlimited data on the Vodafone network.

NetworkMinutesTextsDataMonthly Cost
TalkmobileUnlimitedUnlimitedUnlimited£16.00
1 month

According to their terms and conditions, Talkmobile says the plan “is for personal use only and cannot be used for commercial or business purposes”. However, beyond that, there are no hidden limits on how much data you can use.

Price Fair Use Tethering Network

£16/month

Personal use only

No restrictions

5G coverage
(powered by Vodafone)

Source: Talkmobile: Terms and Conditions
Tariff Information: Talkmobile SIM Only Deals

Tesco Mobile

On Tesco Mobile, it’s currently possible to get an unlimited data SIM card from £25/month. This comes with access to 4G & 5G coverage on the O2 network.

The following table shows Tesco Mobile’s unlimited data SIM cards:

NetworkMinutesTextsDataMonthly Cost
Tesco MobileUnlimitedUnlimitedUnlimited£25.00
24 months
Tesco MobileUnlimitedUnlimitedUnlimited£30.00
12 months

Tesco hasn’t set a fair usage limit for their unlimited data plan. Instead, their terms and conditions simply state that you’re unable to use the service for commercial purposes, or for usage that adversely impacts other customers on Tesco Mobile.

Tesco says on their website that you can use the unlimited data SIM card for personal use in mobile devices, but not in 4G home broadband routers.

Price Fair Use Tethering Network

£25/month

Personal usage only

No 4G routers

5G coverage
(powered by O2)

For more information, see our guide to Tesco Mobile unlimited data plans.

Source: Tesco Mobile Terms and Conditions
Tariff Information: Tesco Mobile Website

Three

On Three, you can get “truly unlimited data” from £20 per month when you order through this link (reduced from the normal price of £25 per month).

There are no fair usage limits for unlimited data inside the UK. You’ll also get 5G coverage with no speed restrictions. However, commercial usage of the service is not permitted:

Use of our services for commercial, resale or fraudulent purposes isn’t allowed under our Terms for Three Services, so we do reserve the right to monitor any unusual activity that may indicate that this is happening to identify and prevent such non-permitted use.

The following table shows the best SIM-only plans from Three with unlimited data:

TariffMinutesTextsDataMonthly Cost
(may rise during contract)
LiteUnlimitedUnlimitedUnlimited£20.00
24 months
LiteUnlimitedUnlimitedUnlimited£21.00
12 months
ValueUnlimitedUnlimitedUnlimited£23.00
£18.40 for 12 months
24 months
CompleteUnlimitedUnlimitedUnlimited£28.00
£22.40 for 12 months
24 months
LiteUnlimitedUnlimitedUnlimited£30.00
1 month
ValueUnlimitedUnlimitedUnlimited£30.00
£24 for 12 months
24 months
CompleteUnlimitedUnlimitedUnlimited£35.00
£28 for 12 months
24 months

The cheapest way to get unlimited data on Three is through their £20 unlimited data SIM card deal. This is available exclusively when you order through this link. It’s a hidden deal so you won’t find it if you look directly on Three’s website.

Most customers choose one of Three’s Lite plans as this will give you unlimited data for the lowest possible price. For an extra £5 per month, you can upgrade to an Unlimited Value plan which gives you Paramount+ for the first half of your plan, and 14 daily Go Roam passes each year. The Unlimited Complete plan costs £10 per month extra. It comes with Paramount+ for the entire duration of your plan, plus 28 daily Go Roam passes per year.

As well as getting an unlimited data SIM card, you can also buy a smartphone from Three with unlimited data on a contract. Three also offers unlimited 4G home broadband and unlimited 5G home broadband.

Price Fair Use Tethering Network

£20/month

No commercial usage

No restrictions

5G coverage
12GB per month data roaming limit applies in Go Roam countries (both inside and outside Europe).

Prior to September 2019, Three had a fair usage policy of 1,000GB per month (1TB) on their unlimited data plans. They’ve confirmed that this fair usage policy no longer applies on their plans:

If you have Unlimited Data as part of your package or with an Add-on, there are no hidden caps or limits when using your device within the UK. Unlimited Data lets you use the internet to your heart’s content, without worrying about hefty bills.

Use of our services for commercial, resale or fraudulent purposes isn’t allowed under our Terms for Three Services, so we do reserve the right to monitor any unusual activity that may indicate that this is happening to identify and prevent such non-permitted use.

For more information, see our guide to unlimited data on Three.

Source: Three Help: What is unlimited data?
Tariff Information: Three Website

Vodafone

Vodafone offers a selection of unlimited data plans from £30/month. This gives you access to both their 4G & 5G networks.

When you choose a Vodafone unlimited data plan, you’ll need to decide between three different download speeds. The Unlimited Lite plan only gives you download speeds of up to 2Mbps. Meanwhile, the Unlimited plan is capped at 10Mbps download speeds and the Unlimited Max plan has uncapped speeds.

There’s no fair usage policy on Vodafone’s unlimited data allowance, except that it needs to be “for your personal and non-commercial use”.

NetworkMinutesTextsDataMonthly Cost
(may rise during contract)
VodafoneUnlimitedUnlimitedUnlimited
10Mbps max
£30.00
24 months
VodafoneUnlimitedUnlimitedUnlimited£33.00
24 months

Vodafone’s unlimited data plans are also available on a 12-month contract or on a 30-day rolling contract.

If you have an unlimited data plan with 4 Xtra benefits, you’ll also be able to use up to 25GB of data per month when travelling abroad as part of Vodafone Global Roaming.

Price Fair Use Speed Limits Network

£30/month

Personal use only

2Mbps (Lite)
10Mbps (Unlimited)
No speed limit (Max)

5G coverage
25GB monthly fair usage limit in 83 Global Roaming destinations (unlimited plans with 4 Xtra benefits).
No restrictions on tethering, personal hotspot or usage in other devices (e.g. tablets & dongles).

For more information, read our Vodafone unlimited data review.

Source: Vodafone Website
Tariff Information: Vodafone Website

VOXI

VOXI is the youth-orientated sub-brand of Vodafone. At present, they’re offering unlimited 5G data for £35/month, with no contract and no credit check required.

On VOXI’s unlimited data plan, you’ll get access to 5G coverage from Vodafone. This gives you average download speeds of 150-200Mbps on 5G, or average download speeds of 23-35Mbps on 4G. You’ll also get unlimited minutes and unlimited texts included on your plan.

NetworkMinutesTextsDataMonthly Cost
VOXIUnlimitedUnlimitedUnlimited£35.00
1 month

According to their terms and conditions, VOXI says they “reserve the right to suspend or throttle the service if we have reason to believe that the SIM card is being used for commercial purposes, fraudulently or is having an adverse impact / damaging our network in any way”.

Price Fair Use Tethering Network

£35/month

Personal use only

No restrictions

5G coverage
(powered by Vodafone)

Source: VOXI: Terms and Conditions
Tariff Information: VOXI Website

Other Mobile Networks

If you’re unable to get an unlimited data plan from your network, it’s possible you might be able to choose a very large data allowance instead (e.g. 100GB data per month, or more). The following networks do not currently offer an unlimited data plan:

  • 1pMobile offers 30-day boosts with up to 200GB data. Although this is sometimes advertised as “virtually unlimited”, there is a hard limit of 200GB data per month. Further usage beyond the 200GB limit will incur additional charges.
  • Sky Mobile offers up to 200GB data per month. Sky haven’t yet announced whether unlimited data will become available on their network in the future.
  • Talk Home Mobile offers plans with up to 200GB data per month.

Alternatives to Unlimited Data

In some cases, it might not actually be necessary to choose a plan with unlimited data. This is because the average UK mobile user only consumes around 8GB of data per month.

If you mainly want the reassurance that you’ll never run out of data, consider something like SMARTY's 60GB plan. This will cost you £10 per month with no contract and no credit check. It already has more than enough data for the average user.

NetworkMinutesTextsDataMonthly Cost
SmartyUnlimitedUnlimited60GB£10.00
1 month

Alternatively, if you just want unlimited data for use on certain apps, consider VOXI’s unlimited social media (from £10/month), unlimited music (from £12/month), or unlimited video (from £15/month). This will give you unlimited data for use in the following applications:

  • Unlimited social media includes: Facebook, WhatsApp, Snapchat, Twitter, Instagram, Facebook Messenger & Pinterest
  • Unlimited music includes: Spotify, Apple Music, Amazon Music, TIDAL, Deezer, Napster & Primordial Radio
  • Unlimited video includes: TikTok, YouTube, Netflix, Amazon Prime Video & My5
NetworkMinutesTextsDataMonthly Cost
VOXIUnlimitedUnlimited15GB
Unlimited Social
£10.00
1 month
VOXIUnlimitedUnlimited60GB
Unlimited Social
Unlimited Music
£12.00
1 month
VOXIUnlimitedUnlimited30GB
Unlimited Social
Unlimited Music
Unlimited Video
£15.00
1 month
VOXIUnlimitedUnlimited300GB
Unlimited Social
Unlimited Music
Unlimited Video
£20.00
1 month

For more information, see our comparison of the best SIM-only deals in the UK.

Frequently Asked Questions

Which mobile networks offer unlimited data in the UK?
The following mobile networks currently offer unlimited data in the UK:
What’s the best value unlimited data deal?
We’d currently recommend SMARTY's £16/month unlimited data SIM card. You’ll get unlimited data with no contract, no credit check, and access to 5G in more than 500 UK towns and cities. You’ll also get 99.8% population coverage on 4G. There are no fair usage limits on SMARTY’s unlimited data plan.
Will I get 5G coverage with unlimited data?
Yes. All of the unlimited data plans listed on this page will give you access to 5G coverage if you’re using a compatible 5G-ready phone. However, some plans come with a maximum download speed so it’s worth double checking this before you buy.
Is there a fair usage policy on unlimited data?
It depends on the mobile network. Normally, it’s stated that unlimited data is for your personal use only. In addition, there are sometimes further limitations and restrictions which are detailed within this table. If you’re travelling abroad to another European country, there is normally also a limit on how much data you can use.

More Information

For more information about a specific unlimited data plan, please see the details on your mobile network’s website. We’ve also got in-depth guides to unlimited data on ASDA Mobile, EE, giffgaff, iD Mobile, Lebara Mobile, Lyca Mobile, O2, SMARTY, Three and Vodafone.

If you’re looking for a wider range of deals, compare SIM-only plans including those without an unlimited data allowance.

Your Comments 86 so far

We'd love to hear your thoughts and any questions you may have. So far, we've received 86 comments from readers. You can add your own comment here.

  • How do carriers enforce this 12 device limit? I run proxmox which currently has 3 VMs up taking local addresses with another 3 inactive and potential for dozens more. I consider this one device.

    I’m already at dot 45 for local addresses, and was at dot twenty something before Proxmox. How long before devices are forgotten? Do they mean 12 devices *simultaneously*?

    sly

  • Hi Ken, thanks for the post. When I click the link for Lyca, it offers me 30 days at 10£. I am not sure if no longer valid. I have tested the Lebara and your code is good to go.
    You have noted that Lyca does not allow hotspot and tethering, do you know if it is the same for Lebara?
    I am currently moving from Asda to another network that is not Vodafone. Asda was great until recently, the past months had been really difficult, and the network became poor. I have had the same issue with Three before. I don’t have the same issue when roaming and directly connected to Vodafone, it is only when piggybacking.
    I saw that Superdrug has one now, do you know anything about it?
    I have used: Smarty, Three and ID in the past, and it just didn’t work.
    Kind regards,

    • Hi Thais,
      Thanks for your comment. You can get unlimited data for £9.99 per month on Lyca Mobile following the link here 🙂
      With regards to Lebara, there are no restrictions on tethering or personal hotspot usage. Strictly speaking, I don’t think Lyca are supposed to have restrictions on this either due to net neutrality regulations. However, just to be safe, I’d probably go with Lebara if that’s a feature that you really care about.
      With regards to your other questions, I’m not 100% sure. Are you having problems with the coverage from a certain provider? If so, I’d recommend testing out a couple of SIM cards from different coverage providers to see which one works best where you are.
      Hope this helps,
      Ken

  • Hi Ken,

    I see the virgin unlimited data sim for phones doesn’t allow 4g routers, but do the smaller 35 +100 gb plans allow them?

    Thanks

    • Hi Craig,
      Thanks for your comment. The exact wording of their T&Cs suggests that all Virgin Mobile plan are not intended to be used in a 4G router (see clause 3.7). However, they do not actually prohibit the usage and suggest they might move you to a limited data plan if you’re found to be using a 4G router. I therefore suspect you’ll probably be fine doing this, albeit, it isn’t how Virgin say they intend their service to be used:

      3.7 Your mobile SIM card is for use in a personal mobile or mobile broadband device, such as a dongle or mobile Wi-Fi device. It is not intended for use in any other type of device, including 4G routers. We reserve the right to suspend your services if we believe abuse is taking place and if you are using an unlimited tariff, we may ask you to move to a plan with a fixed data allowance.

      Hope this helps,
      Ken

      • Craig Nicolson replied:

        Thanks for that Ken,

        Might give your Lebara SIM offer a bash 1st. I don’t want to be limited to 2Mbps !!

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