Does the Light Phone II (International) work on Three?

Q: Does the Light Phone II (International) work on Three?

Works. Light's own compatibility checker says the Light Phone II (International model) will work with Three in the UK (it lists Vodafone and Three (not O2 or EE); checked 23 Oct 2026). It's a 4G-only phone with no 2G or 3G, so calls go over 4G Calling.

Last checked 23 Oct 20264 sourcesLight's checker (23 Oct 2026)

Yes, it should.

Works

Light's own compatibility checker says the Light Phone II (International model) will work with Three in the UK (it lists Vodafone and Three (not O2 or EE); checked 23 Oct 2026). It's a 4G-only phone with no 2G or 3G, so calls go over 4G Calling.

Nothing on Three's published plans affects this pairing right now.

Source: Light's own compatibility checker, checked 23 Oct 2026 (a maker statement, not a network list).

Three (UK)

3G: Switched off (November 2025)
2G: Three has never had a 2G network, so calls need 4G Calling (VoLTE)

Light Phone II (International)

2G: Not listed (Light lists 4G LTE only)
3G: Not published or not checked yet
4G bands: 1, 3, 5, 7, 8, 20, 28 (International model TLP202)
4G Calling: yes – Light's FAQ lists 'LTE FDD + VoLTE'.

The same applies to networks that run on Three: SMARTY, iD Mobile. Smaller networks sometimes handle 4G Calling differently, so check with them too.

Other networks in the UK

EE Doesn't work
Vodafone UK Works
O2 Doesn't work

Everything about the Light Phone II (International) · All phones on Three · Dumbphones that work in the UK

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Sources

How we decide: our method.