SMARTY offers a £20 unlimited data SIM card with no contract and no credit check required.
The plan is available on a one-month rolling basis, with no contract and no credit check required. You’ll get 3G and 4G coverage from the Three network.
In this article, we’ll review SMARTY’s unlimited data SIM card. We’ll start by looking at what their £20 unlimited data plan includes, the download speeds available and the monthly fair usage policy. We’ll then look at how SMARTY’s unlimited data SIM card compares to rival networks and at the coverage available on SMARTY. Finally, we’ll look at how you can keep your current phone number when moving to the SMARTY network.
- 1 Unlimited Data on SMARTY
- 2 Comparison to Alternatives
- 3 Network & Coverage
- 4 Keeping Your Phone Number
- 5 Frequently Asked Questions
- 6 More Information
Unlimited Data on SMARTY
No Download Limits
In the UK, SMARTY is a budget-orientated mobile network, owned and operated by Three. Specialising in SIM cards that work on a one-month rolling basis, customers can join SMARTY without the need for a contract or credit check.
At the moment, SMARTY’s flagship price plan is their £20 unlimited data plan. This comes with unlimited minutes, unlimited texts and unlimited data.
SMARTY’s unlimited data plan works on a pre-paid basis so you’ll pay for each month’s usage in advance. The payment is taken automatically each month from a registered credit card or debit card unless you disable automatic renewal within your SMARTY account.
For any out-of-bundle usage (e.g. international or premium-rate phone calls), you can top-up a separate cash balance onto your SMARTY account.
4G Download Speeds
On SMARTY’s unlimited data plan, you’ll get access to 3G & 4G coverage from Three network. The download speeds available on SMARTY are the same as those on Three’s 4G network, with no speed restrictions or throttling in place on the service.
In theory, it’s possible to get download speeds of up to 300Mbps on SMARTY’s 4G mobile network. However, download speeds can vary substantially by location and will more typically be in the region of around 20Mbps.
As a customer of SMARTY, you’re able to benefit from Three’s ongoing 4G network upgrades. This includes the introduction of 4G+ technology, the upgrade of older 3G spectrum to support 4G, and the introduction of L-Band spectrum (giving Super 4G+ coverage). These 4G network upgrades have improved speeds by up to 130% for customers on SMARTY.
Unfortunately, 5G coverage is not yet available to customers on SMARTY. If you’re looking for an unlimited data plan that’s 5G-ready, we’d recommend getting a SIM card from Three instead. On Three, you’ll get unlimited data from £16 per month with access to 5G speeds in areas that have 5G coverage.
For more information, see our Three unlimited data review.
Fair Use Policy
SMARTY doesn’t have any speed restrictions or hidden fair usage limits for unlimited data in the UK. This is confirmed in their price guide:
With our Unlimited plan there’s no hidden ‘fair use policies’ within the UK, giving you all the access to the Internet you’d need without worrying about hefty bills and no data speed restrictions.
If you’re travelling in the EU you will be subject to our fair use limit of 20GB each month.
All our SMARTY plans must only be used for your personal and non-commercial use.
In the past, a fair usage limit of 1,000GB per month was used to identify non-permitted commercial usage of the service. SMARTY has confirmed that this fair usage policy is no longer being applied.
Tethering & Personal Hotspot
Tether without worrying
You can tether and hot-spot all of your data with no speed caps as long as you’re in the UK.
The use of tethering or personal hotspot can be a convenient way to get your other devices (including a laptop or tablet) connected to the internet.
SMARTY Mobile Broadband
You can use SMARTY’s unlimited data SIM card in other devices like your tablet, mobile broadband dongle, mobile wi-fi hotspot or 4G home broadband router.
In fact, you can build your own 4G home broadband service by combining SMARTY’s unlimited data SIM card with something like an unlocked Huawei B311 router. You’d then pay just £20/month for unlimited 4G home broadband through your SMARTY SIM card.
One downside of using SMARTY for 4G home broadband is the lack of a publicly-accessible IP address. This is because SMARTY uses CGNAT technology, assigning you an IP address that’s unable to accept incoming connections. This won’t make any difference for most online activities, but it can stop you from doing things like running a server, using certain P2P apps or playing some online multiplayer games.
If you’d like a publicly-accessible IP address, it’s better to get a SIM card from Three instead. On Three, you can get a public IP address when using the 3internet APN. This service is not available to customers on SMARTY.
Comparison to Alternatives
In the UK, there are numerous other mobile networks also offering an unlimited data plan.
At the current price of £20/month with no contract, SMARTY’s unlimited data plan is one of the cheapest and most flexible unlimited data plans on the market.
If you want 5G at no extra cost along with Go Roam Around The World (inclusive roaming in 71 destinations), you could also consider getting unlimited data on a SIM card from Three. On Three, unlimited data is currently available for £16 per month.
The following table compares SMARTY’s unlimited data plan to what is available on other networks:
For more information, see our full guide to unlimited data plans in the UK.
Network & Coverage
3G & 4G Coverage from Three
On SMARTY’s unlimited data plan, you’ll get 3G & 4G coverage from the Three network. At the time of writing, this equates to 99.8% population coverage on 4G and 98.7% population coverage on 3G.
You can check the coverage in your area by entering your postcode on SMARTY’s online coverage map:
On SMARTY, you’ll also have access to 4G Calling and Wi-Fi Calling if you have a compatible device.
Unfortunately, SMARTY doesn’t provide any 2G coverage. For this reason, your mobile phone will need to support 3G coverage at a minimum. You may also be unable to use a SMARTY SIM card in some dual-SIM phones.
For more information, see our guide to SMARTY’s mobile network and coverage.
Unfortunately, 5G coverage isn’t currently available to customers on SMARTY. Although their website says 5G will be launching in the future, they’ve also said that the current focus is on upgrading 3G and 4G services instead.
If you’d like access to unlimited data with 5G coverage, we’d recommend getting a SIM card from Three instead. On Three, you can get a 5G-ready unlimited data SIM card for only £16 per month. You’ll then be able to access 5G coverage in the following 154 UK towns and cities:
|Now Live||154 towns and cities are live on Three 5G (February 2021)|
Aberdeen, Abingdon-on-Thames, Adlington, Aldershot, Aldridge, Balloch, Barnsley, Barrow-in-Furness, Basildon, Bath, Bedford, Belfast, Billericay, Billingham, Birkenhead, Birmingham, Blackburn, Blackpool, Borehamwood, Bournemouth, Bradford, Brighton, Brimington, Bristol, Bromsgrove, Brookmans Park, Broughton Astley, Burton upon Trent, Cannock, Cardiff, Castlereagh, Chatham, Chelmsford, Cheltenham, Chesham, Christleton, Clayton-le-Woods, Clifton, Colchester, Copmanthorpe, Corringham, Coventry, Crawley, Crook, Cullingworth, Danderhall, Denholme, Derby, Dewsbury, Doncaster, Dundee, East Kilbride, Edinburgh, Ellesmere Port, Exmouth, Glasgow, Gorebridge, Grays, Greenock, Grimsby, Guildford, Hamilton, Hartley, Heanor, Heathcote, Hedge End, Hemel Hempstead, Hertford, Heswall, Horley, Horwich, Huddersfield, Hull, Huntingdon, Inchinnan, Ingleby Barwick, Ipswich, Irlam, Iver, Kings Hill, Kings Langley, Kirkheaton, Leeds, Leicester, Leyland, Lincoln, Liverpool, London, Lower Stondon, Luton, Maidenhead, Maidstone, Manchester, Mansfield, Marlow Bottom, Milton Keynes, Motherwell, Neston, Newcastle, Newhall, Newport, Newquay, Newton Aycliffe, Newton-le-Willows, Newtownabbey, Normanton, Northampton, Nottingham, Nuneaton, Ottershaw, Oxford, Peterborough, Plymouth, Porthcawl, Portsmouth, Preston, Reading, Redcar, Royston Yorkshire, Sheffield, Shelly Green, Slough, South Heighton, South Normanton, Southampton, Southend-on-Sea, Southport, St Albans, St Blazey, St Columb Road, Stevenage, Stockton-on-Tees, Stoke-on-Trent, Sunderland, Sunninghill, Sutton-in-Ashfield, Swadlincote, Swindon, Tamworth, Telford, Thornaby-on-Tees, Wakefield, Walton-on-Thames, Warrington, Washington, Westhoughton, Weybridge, Wickford, Wigan, Winterbourne, Worcester, Worksop, Writtle, York
For more information, see our guide to 5G on Three.
If you’re travelling abroad to one of 35 European destinations, you can use up to 20GB of data abroad at no extra cost. You can also use the unlimited minutes and unlimited texts from your SMARTY plan. The following destinations are included in this offer:
Austria, Belgium, Bulgaria, Comoros & Mayotte, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, French Guiana, Germany, Gibraltar, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Liechtenstein, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Reunion, Romania, Slovakia, Slovenia, Spain, Sweden and Switzerland
If you’re travelling outside Europe, you’ll need to buy an “Out of plan” add-on. The costs for using your SMARTY SIM card outside Europe can be significantly higher. For instance, when travelling to the United States, you’ll pay 50p/minute, 20p/text and 10p/MB (equivalent to £100 per gigabyte). It isn’t possible to use your plan allowances when travelling outside Europe.
For more information, see SMARTY’s web page on international roaming.
Keeping Your Phone Number
If you’d like to keep your current phone number when joining SMARTY Mobile, it’s a straightforward process to transfer it from your old mobile network.
Start by ordering your unlimited data SIM card from SMARTY’s website. To start with, it will come with a temporary phone number assigned to it, allowing you to test out the service before moving your phone number over.
When you’re happy to move your phone number over, you’ll need to get a PAC Code from your old network. This is available through your mobile network’s website or app, or by texting PAC to 65075. You can then submit the PAC Code to SMARTY through your online dashboard. Once you’ve done that, your phone number transfer will normally take place on the next working day.
For step-by-step instructions on how to move your phone number to SMARTY, please select your current mobile network from the drop-down menu below:
For more information on transferring your phone number between networks, see our in-depth guide to using a PAC Code.
Frequently Asked Questions
|What is SMARTY’s unlimited data SIM card?|
|What download speeds are available with unlimited data on SMARTY?||
SMARTY offers 3G and 4G coverage. In theory, you can get up to Category 6 LTE download speeds (up to 300Mbps), but speeds will more typically be in the region of 20Mbps.
If you’d like access to 5G speeds, you’ll need to get a 5G-ready SIM card from Three instead. On Three, you’ll get unlimited data with 5G from £16 per month.
|Can I use a SMARTY SIM card for mobile broadband?||
Yes. SMARTY has confirmed on their website that you can use their unlimited data SIM card in devices like your tablet, mobile broadband dongle, mobile wi-fi hotspot or 4G home broadband router.
|Does SMARTY offer 5G coverage?|
|How does SMARTY compare to Three for unlimited data?||
On SMARTY, you’ll pay £20 for unlimited data on a one-month rolling contract with 3G & 4G speeds.
On Three, you’ll pay £16 per month for unlimited data and access to 5G. You’ll also get inclusive roaming in 71 destinations through the Go Roam offer. The disadvantage, however, is you’ll need to sign up for a contract to get this.
|Can I keep my current phone number?||
Yes. It’s a straightforward process to keep your current phone number. Ask your old mobile network to provide you with a PAC Code. You can get one through your mobile network’s website or app, or by texting PAC to 65075. Once you’ve ordered your SMARTY unlimited data SIM card, you can provide the PAC Code to SMARTY through your online account.
For more information on SMARTY’s unlimited data plan, please see their official website.