Does the Light Phone III work on 1&1?

Last checked 23 Oct 20265 sourcesLight's checker (23 Oct 2026)

Yes.

Works

Light's own compatibility checker says the Light Phone III will work with 1&1 in Germany (it lists Deutsche Telekom, Vodafone, O2 and 1&1; checked 23 Oct 2026). Light's spec sheet lists 4G and 5G only, so calls go over 4G Calling.

You should be able to put a 1&1 SIM in the Light Phone III and make calls, send texts and use data.

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

1&1 (Germany)

  • 3G: No 3G network
  • 2G: No 2G of its own: uses Vodafone's 2G via national roaming, so Vodafone's September 2028 date applies

Light Phone III

  • 2G: Not listed on Light's spec sheet
  • 3G: Not published or not checked yet
  • 4G bands: 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 18, 19, 20, 25, 26, 28, 29, 30, 38, 40, 41, 42, 48, 53, 66, 71 + 5G
  • 4G Calling: unknown – Light says the Light III is one worldwide model, but we haven't found a UK or Portuguese network that confirms 4G Calling on it. EE owners on r/LightPhone report 4G service.

Other networks in Germany

Everything about the Light Phone III · All phones on 1&1 · Dumbphones that work in Germany

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Sources

How we decide: our method.