O2 SIM only deals: comparing their best plans in July
![O2 logo with a SIM card](https://www.simsherpa.com/images/compare-o2-sim-only-deals.png)
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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: 26th July 2024.
O2's best SIM only deals
Our best-rated O2 SIM only deal this month
![O2 SIM only deal](https://www.simsherpa.com/images/O2simonlyplan.png)
just
£28.99
a month
✔ Unlimited mins and unlimited data See full deal
at o2.co.uk
(opens in new window)
Looking at what you can get on SIM only with O2 this July, our best-rated deal would be their 24‑month plan below, which comes with unlimited data, plus unlimited minutes and texts for £28.99 a month:
![O2 logo](https://www.simsherpa.com/images/O2canvas.png)
Unlimited minutes + Unlimited texts +
See full deal
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:
![iD Mobile logo](https://www.simsherpa.com/images/IDcanvas.png)
Unlimited minutes + Unlimited texts +
See full deal
![SMARTY logo](https://www.simsherpa.com/images/SMARTYcanvas.png)
Unlimited minutes + Unlimited texts + £20 £16 a month (1‑month plan, no contract)
See full deal
🛈 No annual price rises
![Talkmobile logo](https://www.simsherpa.com/images/Talkmobilecanvas.png)
Unlimited minutes + Unlimited texts +
See full deal
![Vodafone logo](https://www.simsherpa.com/images/Vodafonecanvas.png)
Unlimited minutes + Unlimited texts +
See full deal
![ASDA Mobile logo](https://www.simsherpa.com/images/ASDAcanvas.png)
Unlimited minutes + Unlimited texts +
See full deal
🛈 ASDA reserve the right to increase the cost of this plan annually with one month's notice
![Tesco Mobile logo](https://www.simsherpa.com/images/Tescocanvas.png)
Unlimited minutes + Unlimited texts + £25 £20 a month (24‑month contract)
See full deal
![Three logo](https://www.simsherpa.com/images/Threecanvas.png)
Unlimited minutes + Unlimited texts +
See full deal
![Lebara logo](https://www.simsherpa.com/images/Lebaracanvas.png)
Unlimited minutes + Unlimited texts +
See full deal
![Honest Mobile logo](https://www.simsherpa.com/images/Honestcanvas.png)
Unlimited minutes + Unlimited texts +
See full deal
🛈 Prices reduce over time!
![giffgaff logo](https://www.simsherpa.com/images/giffgaffcanvas.png)
Unlimited minutes + Unlimited texts + £35 £25 a month (18‑month contract)
See full deal
Their £21.99 for 150GB plan is a decent deal for July
![O2 SIM only deal](https://www.simsherpa.com/images/O2simonlyplan.png)
just
£21.99
a month
✔ Unlimited mins and 150GB data See full deal
at o2.co.uk
(opens in new window)
If you need less data, you might like the £21.99 SIM only deal running on O2 at the moment. It's a 24‑month plan, which comes with 150GB data, unlimited minutes and texts too:
![O2 logo](https://www.simsherpa.com/images/O2canvas.png)
Unlimited minutes + Unlimited texts +
See full deal
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:
![iD Mobile logo](https://www.simsherpa.com/images/IDcanvas.png)
Unlimited minutes + Unlimited texts +
See full deal
![SMARTY logo](https://www.simsherpa.com/images/SMARTYcanvas.png)
Unlimited minutes + Unlimited texts +
See full deal
![Talkmobile logo](https://www.simsherpa.com/images/Talkmobilecanvas.png)
Unlimited minutes + Unlimited texts +
See full deal
![Three logo](https://www.simsherpa.com/images/Threecanvas.png)
Unlimited minutes + Unlimited texts +
See full deal
![Vodafone logo](https://www.simsherpa.com/images/Vodafonecanvas.png)
Unlimited minutes + Unlimited texts +
See full deal
![ASDA Mobile logo](https://www.simsherpa.com/images/ASDAcanvas.png)
Unlimited minutes + Unlimited texts +
See full deal
🛈 ASDA reserve the right to increase the cost of this plan annually with one month's notice
![Tesco Mobile logo](https://www.simsherpa.com/images/Tescocanvas.png)
Unlimited minutes + Unlimited texts + £25 £20 a month (24‑month contract)
See full deal
They're also offering 50GB for £17 on SIM only currently
![O2 SIM only deal](https://www.simsherpa.com/images/O2simonlyplan.png)
just
£17
a month
✔ Unlimited mins and 50GB data See full deal
at o2.co.uk
(opens in new window)
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 50GB data, unlimited minutes and texts for £17 a month:
![O2 logo](https://www.simsherpa.com/images/O2canvas.png)
Unlimited minutes + Unlimited texts +
See full deal
In comparison to the rest of O2'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 O2 network. See the networks with cheaper plans here:
![Talkmobile logo](https://www.simsherpa.com/images/Talkmobilecanvas.png)
Unlimited minutes + Unlimited texts + 30GB 50GB data (5G) = £8.95 £8 a month (1‑month contract)
See full deal
![iD Mobile logo](https://www.simsherpa.com/images/IDcanvas.png)
Unlimited minutes + Unlimited texts +
See full deal
![Vodafone logo](https://www.simsherpa.com/images/Vodafonecanvas.png)
Unlimited minutes + Unlimited texts +
See full deal
![Three logo](https://www.simsherpa.com/images/Threecanvas.png)
Unlimited minutes + Unlimited texts +
See full deal
![SMARTY logo](https://www.simsherpa.com/images/SMARTYcanvas.png)
Unlimited minutes + Unlimited texts + 100GB 120GB data (5G) = £12 a month (1‑month plan, no contract)
See full deal
![VOXI logo](https://www.simsherpa.com/images/VOXIcanvas.png)
Unlimited minutes + Unlimited texts + 25GB 75GB data (5G) = £12 a month (1‑month plan, no contract)
See full deal
![Talk Home logo](https://www.simsherpa.com/images/Talkhomecanvas.png)
Unlimited minutes + Unlimited texts +
See full deal
![Tesco Mobile logo](https://www.simsherpa.com/images/Tescocanvas.png)
Unlimited minutes + Unlimited texts + £15 £13 a month (24‑month contract) £20 Clubcard voucher (automatic, no need to claim)
See full deal
![1pMobile logo](https://www.simsherpa.com/images/1pmobilecanvas.png)
Unlimited minutes + Unlimited texts +
See full deal
![EE logo](https://www.simsherpa.com/images/EEcanvas.png)
Unlimited minutes + Unlimited texts +
See full deal
🛈 Prices rise each year on March 31st by £1.50
Compare all SIM only plans
Compare deals from all networks
How O2's deals compare with other networks
![SIM card with magnifying glass](https://www.simsherpa.com/images/search-sim-only-deals.png)
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More about O2's SIM only plans
O2’s SIM only prices and benefits compared
In our full review of the O2 network we said we liked their brilliant call signal (3G/2G) coverage, their good 5G coverage and their great WiFi hotspot scheme. We also like their WiFi calling and 4G calling.
You have the choice of 1-month, 12-month and 24-month contracts. Their 24-month contracts are usually much cheaper per month, but it’s best to check their current deals for the best possible offer.
O2’s deals tend to be some of the most expensive of all networks, but they’re a bit more competitive on big data deals. There are some smaller providers on O2’s network who offer better value SIM only deals.
They’re also the only main UK network to still offer inclusive EU roaming on all plans. And you can get extras on premium plans, such as subscriptions to entertainment services and worldwide roaming data passes.
Useful link: Read our full O2 review
Other things to know about O2’s SIM only deals
You’ll get your O2 SIM card between 1-4 working days after ordering (depends on your location). And there are premium delivery options too. You’ll receive each size of SIM for any phone. Or you can take an eSIM.
When your SIM arrives, you have 14 days to return it and get a full refund if you’re not satisfied. This will also cancel your contract. Here’s how you do that.
To prevent customers racking up huge bills they can’t pay, O2 make you pass a credit check to join them. If you have a poor or no credit history you can still join O2 on a PAYG monthly bundle instead.
And if you’re switching to O2 from another network you can keep your number by requesting a PAC from your old provider and giving it to O2 at any point. Here’s how you do that.
Useful link: Compare all O2 SIMs