Sports watch from Skmei. It’s got built in bluetooth, activity tracker, and shows call and message notifications from your phone. It even has remote camera!

Get one here:
Aliexpress:

It’s a 50mm watch, so it’s not small.
The Skmei 1425 syncs with your phone, so there’s no need to set or adjust the time. It’s all done automatically from the app. The alarm can also be set from the phone.
Case size: 50mm
Case thickness: 16 mm
Weight: 118 g
Band length: 265 mm
Band width: 26 mm

My camera:

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