O2 SIM only deals: comparing their best monthly plans in June
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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: 17th June 2021.
O2's best SIM only deals
Our best-rated O2 SIM only deal this month
Looking at what you can get on SIM only with O2 this June, our best-rated deal would be their 24‑month plan below, which comes with 60GB data, plus unlimited minutes and texts for £18 a month:
While this is a good enough deal to make it into the best of O2's SIMs, you can beat it for price (even if you definitely want a provider that uses the O2 network). See lower-priced networks' deals here:
Their £25 for 250GB plan is a decent deal for June
For more monthly data, you might like the £25 SIM only deal running on O2 at the moment. It's a 24‑month plan, which comes with 250GB data, unlimited minutes and texts too:
Unlimited minutes + Unlimited texts + 250GB data (5G) = £25 a month (24‑month contract)
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It's a good enough deal to get into O2'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 O2 network. Here are other networks you can beat it on:
They're also offering 150GB for £22 on SIM only currently
For a smaller amount of data, we'd say this is one of O2's best deals on SIM only this month too. It's a 24‑month plan, comes with 150GB data, unlimited minutes and texts for £22 a month:
Unlimited minutes + Unlimited texts + 150GB data (5G) = £22 a month (24‑month contract)
See full deal
It might not be the lowest-cost SIM only deal with 150GB data or more on the entire market but if you're sure you need a SIM using the O2 network, it is the best-priced. See the networks with cheaper plans here:
£30 for unlimited data is O2's next best SIM deal in June
For people who need even more data, have a look at O2's unlimited data SIM below at £30 a month, as it's another good deal. It's on a 24‑month plan and comes with unlimited data, unlimited minutes and texts:
It does enough to get into our pick of O2's best SIMs but that doesn't mean it's unbeatable on price. Other providers (even ones that use the O2 network) can beat it. Here's which other networks can beat it:
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