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BT Mobile SIM only plans: compare their best deals for December

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: 1st December 2021.

BT's best SIM only deals

Our best-rated BT Mobile SIM only deal this month

BT Mobile SIM card
 
40GB data
£20
a month

12-month dealGet this deal

at bt.com
(opens in new window)

From all the options BT Mobile have got available this December on SIM only, we think this £20 12‑month deal is their best. For your £20 a month, you get 40GB data alongside unlimited minutes and texts:

While it's good enough to be in our pick of BT's best SIM only deals, other providers do still have similar plans for less, even ones that also use the EE network. See who's offering it for less here:

Their 6GB for £13 SIM is another good option

BT Mobile SIM card
 
6GB data
£13
a month

12-month dealGet this deal

at bt.com
(opens in new window)

If you need less data, another good deal on BT Mobile at the moment is their £13 SIM only plan here, which includes 6GB data instead, plus unlimited minutes and texts:

It's definitely one of BT's best. But it's not market-leading. You can get a similar plan on other providers for less, even if you need your SIM to use the EE network. Here's where you can beat it on other networks:

BT's 5GB for £13 plan is a good option too

BT Mobile SIM card
 
5GB data
£13
a month

24-month dealGet this deal

at bt.com
(opens in new window)

For a smaller amount of data, our next best pick of BT Mobile SIM only plans is their 24‑month £13 deal below, which gets you 5GB data and unlimited minutes and texts:

Even though it's in our pick of BT's best SIM only deals, you can actually beat it on price with other providers, including ones that also use the EE network. See lower-priced networks' deals here:

Their £15 for 20GB plan is a decent deal for December

BT Mobile SIM card
 
20GB data
£15
a month

24-month dealGet this deal

at bt.com
(opens in new window)

For people who need even more data, BT Mobile are also offering this £15 SIM, which includes 20GB data, unlimited minutes and texts on a 24‑month plan. It's another of their best deals:

While this is a good enough deal to make it into the best of BT's SIMs, you can beat it for price (even if you definitely want a provider that uses the EE network). Here are other networks you can beat it on:

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:

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ID logo
IQ logo
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