Huawei WATCH 2 Faq page 17

2. If your phone is connected to multiple devices that support calling, go
to >
Settings Bluetooth
available devices, and enable
3. For the Bluetooth version of the watch, calls can't be made directly from the
watch when the watch is connected to your phone over Wi-Fi.
4. For the 4G version (SIM and eSIM), the watch's SIM card communication
function is automatically disabled to save power when your phone and
watch are connected over Bluetooth.
To enable the SIM card communication function, go
to Settings > Connectivity > Cellular on your watch and
set Cellular to Automatic or ON (setting Cellular to ON will shorten the
watch's battery life).
5. For the 4G version (SIM and eSIM), cellular data will be automatically
disabled when the watch's battery level drops below 15%.
6. For the 4G version (SIM and eSIM), go to
whether you have the
card.
7. Ensure your SIM card has credit.
8. If the problem persists, try restarting your watch.
on your phone, select your watch from the list of
Phone audio
option. If so, enable it to unlock the SIM
SIM Unlock
.
>
Settings Connectivity
, and check