Smart watch / fitness bracelet VERYFiTEK AW4

VERYFiTEK AW4 Smart Watch for $ 19.10 on Black Friday ($ 20.10 there will be a price + $ 1 seller coupon)
Main characteristics:
Display: 1.3 inches
Battery capacity: 180-220 mAh
RAM: <128 MB
Resolution: 240 × 240 Pixel
Connection: Bluetooth 4.0
Waterproof: IP67
Russian language is supported.
Support systems: Android 4.4 and above, IOS 9.0 and above

Watches on the rather popular chipset nRF52832, using the site search you can compare the approximate prices and products on this chipset with similar characteristics. Dimensions:

My copy is still on the way, but a bunch of standard functions for such products are declared in the specifications:
Sport features: step counter / distance calculation / calorie consumption calculation
With all sorts of additional modes such as: walking / running / cycling / jumping rope / badminton / basketball / football / swimming
Medical functions: heart rate control, blood pressure control, blood oxygen control (you can save the last 7 records).
Well, there are also such things as: sleep control, music control, message history storage (last 3), reminders and notifications (Facebook, Whatsapp, Twitter, Skype and the like), weather, etc.
A $ 1 coupon can be obtained by driving into the search for “@ iTek3CProd00026” in the aliexpress application until November 22nd.

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