Does the Gigaset Comfort 600 SIM work on SMARTY?
We can't confirm SMARTY enables 4G calling on this phone, which it needs to make calls. We don't recommend it for SMARTY until we can.
We can't yet confirm any of the phones we list make calls on SMARTY.
Where the Gigaset Comfort 600 SIM does work
- EE Works (on 2G)
- O2 Works (on 2G)
- Vodafone Works (on 2G)
- 1pMobile Works (on 2G)
- Asda Mobile Works (on 2G)
- giffgaff Works (on 2G)
- Lebara Works (on 2G)
- Lyca Mobile Works (on 2G)
- Sky Mobile Works (on 2G)
- Talkmobile Works (on 2G)
- Tesco Mobile Works (on 2G)
- VOXI Works (on 2G)
How we worked it out
- 2G calls: SMARTY has no 2G network.
- 4G bands: Shares 4G bands with SMARTY: B1, B3, B20, B28.
- 4G calling: SMARTY only enables 4G calling on approved phones, and we haven't confirmed this one.
SMARTY runs on Three's network, so it uses Three's masts and bands.
About 2G: Three has never had a 2G network, so a phone must support 4G calling to make calls on Three.
About 4G calling: SMARTY needs a phone with 4G calling and keeps its own compatible-phone list, which can differ from Three's.
Did it work for you?
Have you used the Gigaset Comfort 600 SIM on SMARTY? Tell us whether it made calls. We read every report. Once we've checked it, your answers and note may appear on this page, without your name or email. Reports don't change verdicts on their own, but they tell us what to check next.
See all networks, features and specs for the Gigaset Comfort 600 SIM · Other phones on SMARTY