MoneySavingExpert Founder, Martin Lewis · Editor-in-Chief, Marcus Herbert Chair, Martin Lewis · Editor, Marcus Herbert

Cheap Tesco Sim Only Deals

Here are the cheapest Tesco Sim deals.

Sim card
Back to options
Filters Sort

Your top deals

Sort by
Sorted by Equivalent Monthly Cost

Your top deals

● Currently your filters are set to 5GB+ data, 200+ mins and 500+ texts - but you can change them to suit you.
● Most providers often hike prices annually. When we know about an increase, we'll factor it into the equivalent cost.
● All deals are for new customers. Existing customer? Call your provider to see if it'll offer you it (see haggling help).
 
5G data 12GB
Mins/texts Unlimited
Contract 12mth
'Free' Roaming 48 countries
Unltd minutes and texts
Signal level Uses O2's network
Tesco
Customer service
Monthly cost
£9.50/mth
 
4G Data 10GB
Mins/texts 5,000
Contract PAYG
'Free' Roaming 48 countries
5,000 minutes and texts
Signal level Uses O2's network
Tesco
Customer service
Monthly cost
£10/mth
 
5G data 12GB
Mins/texts Unlimited
Contract 24mth
'Free' Roaming 48 countries
Unltd minutes and texts
Signal level Uses O2's network
Tesco
Customer service
Until 31 Mar 26
£10/mth
After 1 Apr 26 price rise
£10.60/mth
After 1 Apr 27 price rise
£11.20/mth
Equiv cost: Equivalent cost: 
£10.45/mth
 
5G data 30GB
Mins/texts Unlimited
Contract 24mth
'Free' Roaming 48 countries
Unltd minutes and texts
Signal level Uses O2's network
Tesco
Customer service
Monthly cost
£10.50/mth
 
5G data 12GB
Mins/texts Unlimited
Contract 12mth
'Free' Roaming 48 countries
Unltd minutes and texts
Signal level Uses O2's network
Tesco
Customer service
Until 31 Mar 26
£11/mth
After 1 Apr 26 price rise
£11.66/mth
Equiv cost: Equivalent cost: 
£11.17/mth
 
4G Data 15GB
Mins/texts 5,000
Contract PAYG
'Free' Roaming 48 countries
5,000 minutes and texts
Signal level Uses O2's network
Tesco
Customer service
Monthly cost
£12.50/mth
 
5G data 30GB
Mins/texts Unlimited
Contract 24mth
'Free' Roaming 48 countries
Unltd minutes and texts
Signal level Uses O2's network
Tesco
Customer service
Until 31 Mar 26
£12.50/mth
After 1 Apr 26 price rise
£13.25/mth
After 1 Apr 27 price rise
£14/mth
Equiv cost: Equivalent cost: 
£13.07/mth
 
4G Data 25GB
Mins/texts 5,000
Contract PAYG
'Free' Roaming 48 countries
5,000 minutes and texts
Signal level Uses O2's network
Tesco
Customer service
Monthly cost
£15/mth
 
5G data 100GB
Mins/texts Unlimited
Contract 24mth
'Free' Roaming 48 countries
£20 Voucher
Unltd minutes and texts
Signal level Uses O2's network
Tesco
Customer service
Monthly cost
£16/mth
Voucher
£20
Equiv cost: Equivalent cost incl reward: 
£15.17/mth
 
5G data 30GB
Mins/texts Unlimited
Contract 12mth
'Free' Roaming 48 countries
Unltd minutes and texts
Signal level Uses O2's network
Tesco
Customer service
Until 31 Mar 26
£15/mth
After 1 Apr 26 price rise
£15.90/mth
Equiv cost: Equivalent cost: 
£15.23/mth
 
5G data 60GB
Mins/texts Unlimited
Contract 24mth
'Free' Roaming 48 countries
Unltd minutes and texts
Signal level Uses O2's network
Tesco
Customer service
Until 31 Mar 26
£15/mth
After 1 Apr 26 price rise
£15.90/mth
After 1 Apr 27 price rise
£16.80/mth
Equiv cost: Equivalent cost: 
£15.68/mth
 
5G data 60GB
Mins/texts Unlimited
Contract 12mth
'Free' Roaming 48 countries
Unltd minutes and texts
Signal level Uses O2's network
Tesco
Customer service
Until 31 Mar 26
£17.50/mth
After 1 Apr 26 price rise
£18.55/mth
Equiv cost: Equivalent cost: 
£17.77/mth
 
5G data 100GB
Mins/texts Unlimited
Contract 24mth
'Free' Roaming 48 countries
Unltd minutes and texts
Signal level Uses O2's network
Tesco
Customer service
Until 31 Mar 26
£17.50/mth
After 1 Apr 26 price rise
£18.55/mth
After 1 Apr 27 price rise
£19.60/mth
Equiv cost: Equivalent cost: 
£18.29/mth
 
4G Data 50GB
Mins/texts 5,000
Contract PAYG
'Free' Roaming 48 countries
5,000 minutes and texts
Signal level Uses O2's network
Tesco
Customer service
Monthly cost
£20/mth
 
5G data 100GB
Mins/texts Unlimited
Contract 12mth
'Free' Roaming 48 countries
Unltd minutes and texts
Signal level Uses O2's network
Tesco
Customer service
Until 31 Mar 26
£20/mth
After 1 Apr 26 price rise
£21.20/mth
Equiv cost: Equivalent cost: 
£20.30/mth
 
5G data 250GB
Mins/texts Unlimited
Contract 24mth
'Free' Roaming 48 countries
Unltd minutes and texts
Signal level Uses O2's network
Tesco
Customer service
Until 31 Mar 26
£22.50/mth
After 1 Apr 26 price rise
£23.85/mth
After 1 Apr 27 price rise
£25.20/mth
Equiv cost: Equivalent cost: 
£23.52/mth
 
5G data 250GB
Mins/texts Unlimited
Contract 12mth
'Free' Roaming 48 countries
Unltd minutes and texts
Signal level Uses O2's network
Tesco
Customer service
Until 31 Mar 26
£25/mth
After 1 Apr 26 price rise
£26.50/mth
Equiv cost: Equivalent cost: 
£25.38/mth
 
5G data Unlimited
Mins/texts Unlimited
Contract 24mth
'Free' Roaming 48 countries
Unltd minutes and texts
Signal level Uses O2's network
Tesco
Customer service
Until 31 Mar 26
£25/mth
After 1 Apr 26 price rise
£26.50/mth
After 1 Apr 27 price rise
£28/mth
Equiv cost: Equivalent cost: 
£26.13/mth
 
4G Data 100GB
Mins/texts 5,000
Contract PAYG
'Free' Roaming 48 countries
5,000 minutes and texts
Signal level Uses O2's network
Tesco
Customer service
Monthly cost
£30/mth
 
5G data Unlimited
Mins/texts Unlimited
Contract 12mth
'Free' Roaming 48 countries
Unltd minutes and texts
Signal level Uses O2's network
Tesco
Customer service
Until 31 Mar 26
£30/mth
After 1 Apr 26 price rise
£31.80/mth
Equiv cost: Equivalent cost: 
£30.45/mth

Is Tesco Mobile a good network?

Tesco Mobile is a value Mobile Virtual Network Operator (MVNO) which means it uses O2's mobile network to provide its mobile coverage.

In our most recent customer service poll, Tesco Mobile scored 3.9/5 based on 1312 votes.

Does Tesco Mobile offer Sim plans for bad credit?

Tesco Mobile doesn't carry out credit checks when you apply for one of its PAYG Sims. You can then choose to purchase a monthly bundle (minutes, texts and data) or choose its Triple Credit PAYG tariff which charges you for each minute, text and MB of data you use.

The cheapest Tesco Mobile Sim

The cheapest Tesco Mobile Sim costs £9.50/month and it currently offers unlimited minutes & texts and 12GB/month data over a 12-month contract. See cheap Tesco Sims.

Can I keep my mobile number if I switch to a Tesco Mobile Sim-only deal?

Yes, you can keep your old mobile phone number. If you're moving from another network, you'll need to text 'PAC' for free to 65075 to request your PAC (porting authorisation code). You will need to provide this to Tesco Mobile which should move your number over within one working day.