Save even more with a Family SIM plan.
Add up to 5 SIMs, each with their own allowance. The more you add the more you save.
Choosing your SIM Only
BT SIM only deals are extremely competitive and always offer great value to both new and existing customers. There are weekly offers available that are exclusive to customers buying online. This can include FREE Amazon or iTunes vouchers, extra data or discounted monthly prices.
There are two sets of 3 simple deals to choose from. One for existing customers (these start at £5 per month) and one for new customers (starting at £10 per month). If you are not an existing customer then you will be paying £5 more per month for the same SIM plan.
Want value for money?
In addition to the weekly promotions on SIM Only deals, BT offers great added value with no charge for 4G data, FREE tethering within your allowance and FREE unlimited access to over 5 million BT WiFi hotspots.
One of the other key benefits of a BT SIM is that you can cap your monthly spend so that you won't get any unexpected bills.
What about Internet?
With 4G data available there's no need to worry about the speed of your downloads or surfing the net on your smartphone. As mentioned above, you can also save your allowance whilst your out and about by connecting one of the vast amount of WiFi hotspots across the UK.
All BT SIM Only plans come with data designed to suit your needs. The minimum amount is 500MB on Plan 1 (the cheapest SIM at £5 for existing customers) which is only suitable if you won't be using the Internet a lot or able to use WiFi most of the time.
Plans 2 and 3 come with 2GB and 15GB, respectively. 2GB is about enough for most moderate users and 15GB will be sufficient for most heavy data users. Both these plans are reasonably priced for existing customers at £10 and £20.
Family SIM
Save more with a Family SIM. With this fantastic SIM plan, the more additional SIMs you add the lower the cost will be. This offer is not just limited to family members though as you can also invite your friends too! It's also great if you have more than one device that needs data as you can stream and download more at a lower cost plus you get one bill for all SIMs.
An example saving for a Family plan of 4 SIMs is this:
Original price for SIM 1 = £15
SIM 2 = £8
SIM 3 = £7
SIM 4 = £6
Your overall saving would be £24 a month or £288 a year!
SIM Only Contracts' top tip:
The cheapest plan on BT is either £5 or £10 per month depending on whether your with BT Broadband already or not. This plan only comes with 500MB of data & 200 minutes which might not be enough for most people. Our recommended deal for existing customers is plan 2 with 2GB for £10 p/mth. For new customers we think you might be able to get a better deal with another network like Three or Virgin but keep an eye out for BT's Amazon or iTunes gift voucher promo. This can lower the average monthly cost for the year and make the deal look a fair bit better.
Our editor says:
With great value for money if you are an BT customer already and additional benefits like free tethering. It isn't promoted much but you can also watch BT Sport on your mobile with their special app for mobile customers.
The Good
I like: Great value for existing BT Broadband customers. Fantastic weekly offers including up to £80 in Amazon or iTunes Gift Vouchers.
The Bad
I don’t like: Given that BT broadband customers get a £5 discount on their SIM Only deals, it's highly likely that you will be able to get a better, cheaper plan on another network if you are not a BT customer already/.
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Written by Rosh
Telecoms and SIM Only expert Rosh is passionate about saving money on mobile phone bills. He is also a technology enthusiast and keeps up to date with the latest gadgets and smartphones. In his spare time he also enjoys keeping fit by going to the gym and is a massive supporter of Arsenal FC.
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