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Compare Tesco Mobile SIM Only Deals

Compare the latest Tesco Mobile SIM-only plans by data, price and contract length, and plant trees with every switch.

Check coverage before you switch

Coverage depends on the network this SIM runs on. Check the signal where you live before you switch.

About Tesco Mobile

Tesco Mobile is a SIM-only network that runs on O2's network and lets you collect Clubcard points as you go. It offers a wide range of contract lengths and flexible plans, plus capped contracts so you cannot be charged above your plan. Family-friendly perks round it out. Plans start from £6.00 a month. Compare the live Tesco Mobile deals below.

Quick facts

  • Runs on O2's network, so coverage matches O2 in your area
  • Collect Tesco Clubcard points with your plan
  • Wide range of contract lengths and flexible plans
  • Capped contracts mean no charges above your plan
  • Family-friendly perks available

What network does Tesco Mobile use?

Tesco Mobile uses O2's network, so the coverage you get for calls, texts and data follows O2 in your area. Where O2 has rolled out 5G, you can use it on a plan and phone that support it. As always, signal is the deciding factor with any SIM, so check O2 coverage at your home, work and regular routes before you make the switch.

Tesco Mobile plan types explained

Tesco Mobile stands out for choice. There is a wide range of contract lengths and flexible plans, so you can go short and adaptable or longer for better value. Capped contracts are a useful safety net: you cannot be charged above your plan, which avoids bill shock. The live deals above show the current allowances and contract lengths so you can match a plan to your budget.

Perks and features

The signature perk is Clubcard points, which you collect on your plan and can spend like any other Tesco shopper. Capped contracts protect you from going over, and there are family-friendly perks if you have more than one line in the household. Exactly what each plan includes varies by deal, so read the terms in the comparison above to see which extras come with the option you are eyeing up.

Who Tesco Mobile suits

Tesco Mobile is a strong pick if you already shop at Tesco and want your phone bill to earn Clubcard points. The mix of contract lengths suits people who know exactly what commitment they want, and capped contracts appeal to anyone wary of surprise charges. Families managing several lines will find the perks handy too. If you never shop at Tesco, the Clubcard angle matters less.

Tesco Mobile vs other O2 networks

Tesco Mobile, giffgaff, Lyca Mobile and Sky Mobile all run on O2's network, as does O2 itself, so coverage barely differs between them. The split is in the perks: Tesco Mobile gives Clubcard points and capped contracts, giffgaff leans on flexible rolling plans, Lyca Mobile on cheap international calls, and Sky Mobile on rollover data. Choose the reward that suits how you live.

Pros

  • Runs on O2's network
  • Collect Tesco Clubcard points with your plan
  • Wide range of contract lengths and flexible plans
  • Capped contracts protect you from overcharges

Cons

  • Coverage depends on O2, which varies by area
  • Clubcard perk matters less if you do not shop at Tesco
  • Longer contracts may need a credit check

Our verdict

Tesco Mobile is a sound choice if you shop at Tesco and want Clubcard points, plenty of contract choice and the reassurance of a capped plan.

Get your Tesco Mobile deal in 3 steps

Choose your deal

Select your ideal Tesco Mobile plan from trusted retailers. Filter by data, price and contract length to find your perfect match.

Get your PAC code

Keep your current number by texting 'PAC' to 65075. It's free and takes minutes.

Complete your order

Finish your application with Tesco Mobile. Your new SIM will be delivered and your number transferred automatically.

Eco impact

Our impact grows with you

Every successful switch through Switchity plants 2 trees through our verified reforestation partner, Ecologi. Our switchers have already captured over 5,240 kg of CO₂ and released nearly 26,986 kg of oxygen annually.

262 / 1000 trees26% to goal
Verified reforestation partner: Ecologi
Best Environmentally-Focused Comparison Platform 2026, SME News
2
Trees per switch
5,240+ kg
CO₂ captured
£25,000+
Customer savings

Tesco Mobile SIM-only deals: FAQs

Ready to switch?

Pick your Tesco Mobile SIM-only plan from the comparison above, or browse every UK network we cover.

See all SIM-only deals

Our community impact

Every switch through Switchity supports reforestation and saves our community money on their broadband.

262
Trees grown together
£25,000
Saved by community
£250
Typical yearly saving
738
Trees to go to goal
Claudia Constantin
Written by Claudia Constantin, Co-Founder & Managing EditorPublished