O2 SIM only deals: comparing their best monthly plans in December
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We look at whether O2's current best SIM only plans are decent value compared to all their competitor mobile networks in the UK. SIM Sherpa is your trusty guide. Last updated: 1st December 2021.
O2's best SIM only deals
The SIM only deal on O2 we rate highest this month
We'd say O2's £25 SIM only plan below is their best option this December. It's on a 24‑month deal and gets you unlimited data, unlimited minutes and texts:
It might be one of O2's best deals on SIM only but you can get a lower price for a similar plan on other providers, even ones that use the O2 network. Here's which other networks can beat it:
O2's 250GB for £20 plan is a good option too
If you need less data, we also think this £20 O2 SIM is one of their best options. It comes with 250GB data, unlimited minutes and texts on a 24‑month deal:
There are other networks charging less for a SIM with 250GB data or more but this is the best current option with a provider that uses O2. See where you can get it for less here:
Their £16 for 60GB plan is a decent deal for December
For a smaller amount of data, O2's £16 SIM below is another of their best deals this month. For £16 a month, it offers 60GB data, unlimited minutes and texts on a 24‑month plan:
It's a good deal by O2's standards but price-wise you can still beat this plan on other providers (even ones that still use the O2 network). Here are the networks offering it cheaper:
Unlimited minutes + Unlimited texts + 100GB data (5G) = £12 a month (12‑month contract)
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Unlimited minutes + Unlimited texts + 100GB data (5G) = £16 a month (12‑month contract)
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