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Compare Three Mobile & SIM only deals, upgrades, coverage, speeds, perks and more

  • Uswitch Awards Best Network for Data 2022
  • Truly Unlimited data
  • 5G ready at no extra cost
  • Three+ loyalty app

Top Three Mobile deals

Bestselling Handset Deal
iPhone 14 Pro Max 128gb Unlimited minutes, unlimited texts, 100GB data No upfront fee 24 month contract £64.00 per month Buy now
Cyber Monday deal
2 months free insurance
Bestselling SIM Only Deal
Three Mobile Multi SIM Unlimited minutes, unlimited texts, 100GB data 12 month contract £10.00 per month Buy now
Cyber Monday deal

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Why choose Three Mobile?

Uswitch Awards Best Network for Data 2022

Truly Unlimited data

There are no speed limits and no data caps with Three - just endless streaming, browsing, gaming and sharing in the UK.

5G ready at no extra cost

All Three SIMs are set up to give customers access to their super-fast 5G network. This now covers 54% of the UK outdoor population with average speeds of 204Mbps.

Three+ loyalty app

A loyalty app for all customers that gives money off big brands - like 20% off Uber Eats and £3 Cineworld tickets. Customers also get access to pre-sale tickets for gigs and events.


Three offers extensive 3G and 4G coverage across the UK, with 99% of the UK outdoor population covered. Three’s award-winning 5G network now covers 54% of the UK outdoor population, across 400 towns and cities. The network is rolling out 5G to more areas each day.


Three’s 4G network has an average connection speed of 25.2Mbps, according to OpenSignal in April 2021.

Three's average 5G speeds were measured at 204Mbps in April 2022, according to OpenSignal's 5G download speed report.

Customer support

Three’s customer support team is available Monday-Friday, and 9am-6pm at weekends.

Three customers on Pay Monthly plans can get in touch with the company’s customer service team by calling 333, free from their mobile phone.

Alternatively, customers can call 0333 338 1001 from any other phone and will be charged at their standard rate.

Three also offers the option to get in touch via Livechat on its site.

The site is also home to a range of customer guides. Sample topics include: setting up your mobile phone, turning off data roaming, and the correct procedures to follow if your mobile phone is lost or stolen.

Mobile app

Three’s customer app is available for iPhone and Android. It allows Pay As You Go customers to buy extra add-ons, top-ups and data packs. Customers can also see their usage and change their plan.

Pay Monthly customers can buy add-ons, view all recent bills, track their usage, set spending caps and change their plan via the Three app.

Download the Three app for iPhone.

Download the Three app for Android.

Early upgrades

Three doesn’t offer a mid-contract early upgrade scheme that’s comparable to O2 Refresh or Tesco Mobile’s Anytime Upgrade.

However, customers on Three Pay Monthly plans are offered an upgrade within 30 days remaining on their contract.

Tethering policy

Three allows customers to use their monthly data allowance for tethering. So, customers can use their phone as a portable Wi-Fi hotspot to get online with other internet-enabled devices.


Three’s Essential and Advanced phone-and-SIM and SIM-only deals are competitively priced. The latter are available as one-month, rolling contracts that offer flexibility, or as 12-month contracts.

Essential plans are cheaper than Advanced plans and typically start at less than £10 per month. That'll typically get you an allowance of 500MB of data per month and limited call minutes and texts.

The cheapest Advanced plans start at around £13 per month, with data allowances usually pegged at around 3GB-4GB per month. Expect unlimited calls and texts.

The chief difference between Essentials and Advanced plans is the range of benefits they offer. The best Three benefits, such as zero-data streaming with Go Binge and a wide-ranging inclusive roaming scheme, are reserved for Advanced plans.

Wi-Fi calling

Three’s inTouch Wi-Fi calling service is on offer to all customers and allows them to call and text in the UK in locations where there’s no mobile signal.

Calls made using inTouch come out of customers’ pay monthly customers’ monthly calls allowance.