Does the Qin F21 Pro (global) work on O2?
Yes, for now.
Works with caveatsCalls and texts can fall back to 2G. O2 plans to start switching 2G off from 2029. We haven't found confirmation that 4G Calling works on O2. 4G data should work (shared bands: 1, 3, 8, 20, 28, 40).
It works today, but calls on the Qin F21 Pro (global) rely on a part of O2's network with a switch-off on the way. Check the dates below before you commit for years.
We worked this out from the phone's published bands and O2's own published network facts (see How we check). Nobody has confirmed it for this exact pairing yet.
O2 (UK)
- 3G: Switched off (completed 2025/26)
- 2G: Staying on for now; O2 plans to begin switching 2G off from 2029
Qin F21 Pro (global)
- 2G: GSM 850 / 900 / 1800 / 1900
- 3G: Not published or not checked yet
- 4G bands: FDD 1, 2, 3, 5, 7, 8, 17, 20, 28; TDD 34, 38–41
- 4G Calling: not by default – VoLTE isn't enabled out of the box; a jtechforums guide enables it with root. UK owners report it working on giffgaff/O2 and Vodafone (calls over 2G).
The same applies to networks that run on O2: giffgaff, Tesco Mobile, Sky Mobile. Smaller networks sometimes handle 4G Calling differently, so check with them too.
Other networks in the UK
- EE Works with caveats
- Vodafone UK Works with caveats
- Three Doesn't work
Everything about the Qin F21 Pro (global) · All phones on O2 · Dumbphones that work in the UK
Using a Qin F21 Pro (global) on O2? Tell us how it went and we'll update this page. Report your result.
Sources
How we decide: our method.