ASDA Mobile offers 5G-ready unlimited data plans with a choice of three speeds: up to 2Mbps, up to 10Mbps and up to 150Mbps.

In the UK, ASDA Mobile now offers a choice of three unlimited data plans from £20 per month. Using Vodafone’s 4G & 5G network for coverage, you can choose between a maximum download speed of 2Mbps, 10Mbps and 150Mbps. All of the ASDA Mobile plans are available on a one-month rolling basis with no contract or credit check required.

In this article, we’ll review ASDA Mobile’s unlimited data plans. We’ll start by comparing the three different plans and the maximum download speeds available on each one. We’ll then compare ASDA’s unlimited data plans to what is available on other networks before looking at the coverage available and how to keep your current number.

Prices From: £20 per month
Contract Length: No contract & no credit check
Speed Limits:
Fair Usage: Personal use only. Speed restrictions apply.
Coverage: 4G & 5G coverage (powered by Vodafone)

ASDA Mobile Unlimited Data Plans

In the UK, ASDA Mobile offers low-cost SIM cards with 4G & 5G coverage from Vodafone.

At present, ASDA Mobile is offering unlimited data from £20 per month. You’ll get download speeds of up to 2Mbps on their £20 plan, download speeds of up to 10Mbps on their £22 plan, and download speeds of up to 150Mbps on their £24 plan:

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

There’s no hidden fair usage limit that restricts how much data you can use (as long as it’s for your own personal non-commercial usage).

There’s no contract and no credit check required to join ASDA Mobile and you can sign up to the plan on a one-month rolling basis. This gives you flexibility to change your plan at any time (e.g. upgrading to an unlimited data plan with faster speeds or downgrading to a regular plan without an unlimited data allowance).

Download Speeds

Aside from the price you pay for your plan each month, the only difference between ASDA’s unlimited data plans is the maximum download speed you can get:

  • The £20 unlimited data plan gives you download speeds of up to 2Mbps. This is 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 do things like streaming HD-quality video.
  • The £22 unlimited data plan gives you speeds of up to 10Mbps. This will allow you to stream in HD and to make HD-quality video calls. You’ll also get a far better experience when downloading and sharing files from your phone.
  • The £24 unlimited data plan gives you speeds of up to 150Mbps. This will allow you to do pretty much anything you’d like to do on your phone, including downloading large files and watching online video in 4K ultra-HD quality.

It’s important to remember that this is only the maximum possible download speed. In reality, the actual speeds you get may still be slower than this (e.g. due to network limitations or due to the coverage where you are).

Typically, if you’re using a plan without speed restrictions, Vodafone says you should be able to get download speeds of 23-35Mbps on their 4G network and download speeds of 150-200Mbps on their 5G network.

For this reason, ASDA’s speed-restricted plans tend to be a bit slower than on alternative networks. However, that might not cause too much of a problem if it’s already fast enough for what you actually want to do. For the best online experience, you should choose the £24 plan which has a 150Mbps speed limit.

Comparison to Alternatives

Unlimited Data With Vodafone Coverage

If you’re looking for an unlimited data plan that uses coverage from Vodafone, you can also consider one of the following options:

  • Lebara Mobile offers unlimited data with 4G & 5G coverage from Vodafone. There are no speed restrictions on Lebara’s unlimited data plans.
  • Vodafone offers unlimited data with 5G coverage. Like ASDA Mobile, you’ll need to choose between three different plans, each one with a different maximum speed. The Unlimited Lite plan gives you download speeds of up to 2Mbps, the Unlimited plan gives you download speeds of up to 10Mbps and the Unlimited Max plan gives you uncapped 4G & 5G speeds.
  • VOXI offers unlimited data with 5G coverage from Vodafone. There are no speed restrictions on VOXI’s unlimited data plan and it’s available without a contract or credit check.

The following table shows a comparison of unlimited data plans using coverage from Vodafone:

NetworkMinutesTextsDataMonthly Cost
(may rise during contract)
ASDA MobileUnlimitedUnlimitedUnlimited
2Mbps max
£20.00
1 month
ASDA MobileUnlimitedUnlimitedUnlimited
10Mbps max
£22.00
1 month
Lebara MobileUnlimited
+100 intl.
UnlimitedUnlimited£22.50
12 months
ASDA MobileUnlimitedUnlimitedUnlimited
150Mbps max
£24.00
1 month
Lebara MobileUnlimited
+unltd intl.
UnlimitedUnlimited£27.00
12 months
VodafoneUnlimitedUnlimitedUnlimited
10Mbps max
£30.00
24 months
VodafoneUnlimitedUnlimitedUnlimited£33.00
24 months
VOXIUnlimitedUnlimitedUnlimited£35.00
1 month

Unlimited Data With No Contract

If you’re looking for unlimited data without a contract, you can also consider the one-month rolling plans from giffgaff, SMARTY, Superdrug Mobile and VOXI.

The following table shows a side-by-side comparison of these plans:

NetworkMinutesTextsDataMonthly Cost
SmartyUnlimitedUnlimitedUnlimited£15.00
ASDA MobileUnlimitedUnlimitedUnlimited
2Mbps max
£20.00
ASDA MobileUnlimitedUnlimitedUnlimited
10Mbps max
£22.00
ASDA MobileUnlimitedUnlimitedUnlimited
150Mbps max
£24.00
Lebara MobileUnlimited
+100 intl.
UnlimitedUnlimited£25.00
Lebara MobileUnlimited
+unltd intl.
UnlimitedUnlimited£30.00
VOXIUnlimitedUnlimitedUnlimited£35.00
giffgaffUnlimitedUnlimitedUnlimited£35.00

On giffgaff’s £25 Always-On data plan, you’ll get 4G speeds on the first 80GB of data each month. After this, your downloads will be restricted to a maximum speed of 384kbps (approximately 0.4Mbps) between 8am and midnight each day.

For more information, see our guide to unlimited data plans with no contract.

Other Unlimited Data Plans

If you’re willing to consider a wider range of networks, you can get unlimited data for as little as £15/month. For instance, Three offers a 5G unlimited data plan without any speed restrictions or hidden limits on usage.

The following table shows a side-by-side comparison of unlimited data plans in the UK:

NetworkMinutesTextsDataMonthly Cost
(may rise during contract)
SmartyUnlimitedUnlimitedUnlimited£15.00
1 month
iD MobileUnlimitedUnlimitedUnlimited£16.00
24 months
ThreeUnlimitedUnlimitedUnlimited£20.00
24 months
ASDA MobileUnlimitedUnlimitedUnlimited
2Mbps max
£20.00
1 month
ASDA MobileUnlimitedUnlimitedUnlimited
10Mbps max
£22.00
1 month
Lebara MobileUnlimitedUnlimitedUnlimited£22.50
12 months
ASDA MobileUnlimitedUnlimitedUnlimited
150Mbps max
£24.00
1 month
Tesco MobileUnlimitedUnlimitedUnlimited£25.00
24 months
giffgaffUnlimitedUnlimitedUnlimited£25.00
18 months
O2UnlimitedUnlimitedUnlimited£25.00
24 months
VodafoneUnlimitedUnlimitedUnlimited
10Mbps max
£30.00
24 months
VodafoneUnlimitedUnlimitedUnlimited£33.00
24 months
VOXIUnlimitedUnlimitedUnlimited£35.00
1 month
EEUnlimitedUnlimitedUnlimited£35.00
1 month

For more information, see our full guide to unlimited data on UK networks.

Coverage

On the new unlimited data plans from ASDA Mobile, you’ll now get your coverage from Vodafone instead of EE. This means you’ll get 99% population coverage from Vodafone’s 4G networks. In addition, you’ll have access to Vodafone’s 5G network in areas with coverage.

Before you sign up to an unlimited data plan on ASDA Mobile, it’s worth double-checking the coverage in your area. You can do this by entering your postcode on ASDA’s online coverage map:

Check ASDA Mobile Coverage (mobile.asda.com) →

Keeping Your Phone Number

If you’re switching from another network to ASDA Mobile, it’s easy to keep your current number.

Start by ordering your unlimited data plan from the ASDA Mobile website. Once you’ve done that, you can request a PAC Code from your old network. You can get one through their website or app, or by texting PAC to 65075.

When your new unlimited data SIM card arrives in the post, submit your PAC Code online through the ASDA Mobile website. Alternatively, you can call ASDA Mobile’s customer support team on 2732 to give them the PAC Code on the phone. Once you’ve done this, your phone number transfer will normally take place on the next working day.

For a step-by-step guide on how to move your phone number to ASDA Mobile, please select your current mobile network from the drop down menu below:

PAC Code Finder: Transfer Your Phone Number to ASDA Mobile

Select your current mobile network:

  More Options

There’s also further information in our full guide to transferring your phone number between networks.

More Information

For more information about the unlimited data plans from ASDA, please see the official ASDA Mobile website.

You can also read our full ASDA Mobile review for more in-depth analysis.

Your Comments 3 so far

We'd love to hear your thoughts and any questions you may have. So far, we've received 3 comments from readers. You can add your own comment here.

  • Wanted to let you know the reality of ASDA’s so called ‘unlimited’ service. In a nutshell, it is NOT unlimited.

    Our £24 unlimited bundle was automatically shut down without notice yesterday. Even worse, ASDA emptied the balance on the account charging for data at their per 1MB tariff. 😦

    Note upon calling ASDA customer service they did reinstall our balance. Also experience with ASDA mobile customer service is very good; far superior to other businesses.

    They claim the (and all providers) are REQUIRED by OFCOM to not allow more than 1TB of data use for any data plan per month. Initial searching has returned no law or OFCOM regulation of this type.

    If anyone knows of the existence of any such law or regulation in the UK capping mobile data per month to 1TB please advise with a URL or other reference.

    Very helpful site here BTW. 🙂 Thanks!

  • Lucinda Keyes said:

    How do I receive my sim or do I just keep the in there that comes with my phone now.
    Two of them are slightly disconnected what can this do maybe to get service on them???

    Thank you in advance,

    • Hi Lucinda,
      Thanks for your comment. You can simply choose the plan you’d like from this table. Once you’ve signed up, they’ll send you a SIM card through the post that you just need to put inside your mobile phone. Alternatively, if you already have an ASDA Mobile SIM card, you can just add the bundle you want to that SIM.
      Hope this helps,
      Ken

Leave a Reply