Nine this model cannot measure altitude, but this model has that function built in: Xiaomi Mi Watch (53.35 mm, polyamide)

No, you can't.

Yes, a charging option is available. For other recharging solutions, the Aliexpress should be a good source, because it is usually difficult to get rechargers for such products individually here.

It seems that many features are only available when the watch is paired with a smartphone via the Xiaomi Wear or Xiaomi Wear Lite apps. But you should still be able to use it to some extent without. For further information, please contact our customer service: https://helpcenter.galaxus.ch/hc/fr/requests/new

The best thing to do is to contact our customer service directly at https://helpcenter.digitec.ch/hc/de/requests/new. Your request can then be examined individually.

The main difference is that the Watch 2 lite has a GPS chip. The Smartband 7 still does not have one. However, I can't answer whether the heart rate measurement is more accurate with either of them, but I would say from experience that they are just as good.

The model is now also available in black :-) Here you can find the watch: Xiaomi Xiaomi Redmi Watch 2 Lite Black (39.40 mm, plastic) (pictures to follow)