Does the Alcatel Go Flip 4 (US model) work on O2 (Telefónica)?

Q: Does the Alcatel Go Flip 4 (US model) work on O2 (Telefónica)?

Doesn't work. It has no European 2G bands (900/1800 MHz) and its 4G bands (2, 4, 5, 12, 25, 26, 41, 66, 71 (US bands)) don't match O2 (Telefónica)'s.

Last checked 23 Oct 20265 sourcesWorked out from published specs

No, not any more.

Doesn't work

It has no European 2G bands (900/1800 MHz) and its 4G bands (2, 4, 5, 12, 25, 26, 41, 66, 71 (US bands)) don't match O2 (Telefónica)'s.

We wouldn't buy the Alcatel Go Flip 4 (US model) for a O2 (Telefónica) SIM.

We worked this out from the phone's published bands and O2 (Telefónica)'s own published network facts (see How we check). Nobody has confirmed it for this exact pairing yet.

O2 (Telefónica) (Germany)

3G: Switched off in 2021
2G: On until the second half of 2028 (replace 2G-only devices by 1 July 2028)

Alcatel Go Flip 4 (US model)

2G: GSM 850 / 1900 only
3G: 850 MHz, 1700/2100 (AWS) MHz, 1900 MHz
4G bands: 2, 4, 5, 12, 25, 26, 41, 66, 71 (US bands)
4G Calling: unknown – Made for T-Mobile USA. No UK/PT 2G or 4G bands.

Other networks in Germany

Telekom Doesn't work
Vodafone Doesn't work
1&1 Doesn't work

Everything about the Alcatel Go Flip 4 (US model) · All phones on O2 (Telefónica) · Dumbphones that work in Germany

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Sources

How we decide: our method.