Free O2 SIM Card
Loyalty perks with Priority rewards
Updated April 2026 · 3 min read · Reviewed by The Free SIM Cards UK editorial team · Why trust us
What is the free O2 SIM?
Order a free O2 SIM with no commitment. Activate it whenever you're ready and pick a Big Bundle that suits you.
It runs on Own network (Virgin Media O2), giving you 99% UK population on 4G and 250+ UK towns & cities on 5G. 99% UK population on 4G, 5G live in 250+ UK towns and cities.
The SIM card and UK delivery are completely free (2–3 working days). There's no contract, no credit check, and you only pay if you choose to top up. Best for customers who love loyalty perks and event presale access. Not sold? Compare it with our Vodafone review or Three review.
What we like about O2
- Priority app gives free coffee, gig presales & more
- Strong urban coverage
- Generous data add-ons
Where O2 falls short
- 5G slower to roll out than rivals
- Speeds vary at peak times
At a glance
Network host
Own network (Virgin Media O2)
Delivery
2–3 working days
SIM types
Triple-cut SIM + eSIM
Contract
None — PAYG or 30-day Big Bundles
Credit check
Not required
EU roaming
Included in Europe (25GB fair-use)
On this page⌄
How to order your free O2 SIM
- 1
Click 'Order Free SIM'
You'll be taken straight to O2's order page.
- 2
Enter your UK address
No payment, no card details — just where to send the SIM.
- 3
SIM arrives in the post
Typically 2–3 working days via Royal Mail.
- 4
Pop it in & activate
Follow the leaflet to activate online or by short call.
Free SIM · Free UK delivery · No contract
O2 coverage
99% UK population on 4G, 5G live in 250+ UK towns and cities.
4G
99% UK population
5G
250+ UK towns & cities
Host
Own network (Virgin Media O2)
Keep your existing number
Switching to O2 doesn't mean losing your number. Text the word PAC to 65075 from your current SIM. You'll get a free PAC code within 60 seconds — it stays valid for 30 days. Hand it to O2 during activation and your number transfers within one working day.
Our O2 rating breakdown
How we tested: We compared O2 against the other UK networks on public coverage data, plan pricing, customer reviews and our own delivery test.
Who O2 is best for
Customers who love loyalty perks and event presale access.
Network coverage
99% UK population on 4G, 5G live in 250+ UK towns and cities.
O2 vs other free UK SIM cards
How O2 stacks up against the next 3 best-rated free SIM cards we reviewed.
| Network | Rating | Delivery | Contract | Credit check | EU roaming |
|---|---|---|---|---|---|
| O2 (this review) | 4.9 / 5 | 2–3 working days | None — PAYG or 30-day Big Bundles | Not required | Included in Europe (25GB fair-use) |
| Vodafone | 5.0 / 5 | 1–3 working days | None — PAYG or 30-day plans | Not required | Inclusive in most plans (fair-use cap) |
| Three | 4.8 / 5 | 1–3 working days | None — PAYG or 1/12/24-month options | Not required | Go Roam in 70+ destinations (12GB fair-use) |
| EE | 4.7 / 5 | Next-day if ordered before 8pm | 1, 12 or 24-month SIM-only | Required | Roaming Pass £2.59/day in Europe |
O2 free SIM FAQ
The verdict on the O2 free SIM in 2026
O2 is the perks champion — Priority alone can pay for your bundle in free coffee and gig presales. Best for city dwellers who value rewards as much as raw speed.
Free SIM · Free UK delivery · No contract
Related guides
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