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BT Mobile SIM only plans: compare their best deals in January

BT Mobile logo with a SIM cardVisit BT.com

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We check how good value BT Mobile's SIM only deals are this month, compared to other UK mobile networks. Here are the results. SIM Sherpa is your trusty guide. Last updated: 14th January 2022.

BT's best SIM only deals

The best value SIM only deal on BT Mobile this month

BT Mobile SIM card
 
4GB data
£8
a month

12-month dealGet this deal

at bt.com
(opens in new window)

Looking at what you can get on SIM only with BT Mobile this January, our best-rated deal would be their 12‑month plan below, which comes with 4GB data, plus unlimited minutes and texts for £8 a month:

It's a good enough deal to get into BT's best SIMs but you can actually get a lower price for a similar plan elsewhere, even if you definitely want it to use the EE network. Here are the networks where it'd cost less:

BT's 25GB for £15 plan is a good option too

BT Mobile SIM card
 
25GB data
£15
a month

12-month dealGet this deal

at bt.com
(opens in new window)

For those needing more data, we think this 25GB is one of the best SIM only plans on BT Mobile too. It's on a 12‑month deal, comes with unlimited minutes and texts - all for £15 a month:

In comparison to the rest of BT's current SIM only plans, it's one of the best. But it is beatable on price, even if you're set on joining a provider that uses the EE network. See which networks that are cheaper here:

Their £20 for 100GB plan is a decent deal for January

BT Mobile SIM card
 
100GB data
£20
a month

24-month dealGet this deal

at bt.com
(opens in new window)

To get an even bigger data allowance, we also think this £20 BT Mobile SIM is one of their best options. It comes with 100GB data, unlimited minutes and texts on a 24‑month deal:

It does enough to get into our pick of BT's best SIMs but that doesn't mean it's unbeatable on price. Other providers (even ones that use the EE network) can beat it. Here's where else you can get a lower price:

Compare all SIM only plans

Compare deals from all networks

How BT Mobile's deals compare with other networks

SIM card with magnifying glass

Networks

Providers:

Three logo
ASDA logo
BT Mobile logo
EE logo
giffgaff logo
Honest logo
ID logo
IQ logo
Lebara logo
O2 logo
Plusnet logo
Sky logo
SMARTY logo
Talkmobile logo
Tesco logo
Virgin Mobile logo
Vodafone logo
VOXI logo

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