You need a gadget to receive notifications from your phone, measure steps, sleep, and possibly install third-party applications. Xiaomi redmi device
I choose between Samsung Galaxy Watch and Garmin Vivoactive 4 in the Fitnessbit rating -
https://fitnessbit.ru/obzory-fitnes-gadzhetov/rejting-luchshih-smart-chasov-2018-goda-kakie -umnye-chasy-vybrat-top-10-luchshih-modelej / higher than Garmin, but in light of recent events (hack) I'm not sure about him. For me, design, reliability and functionality are most important. Of course, Garmin has adjusted the reliability, it is unlikely that this will happen again, but still.
In your case, many options are suitable for the scenario that you presented. Here's a short list of what might work for you.
These are just a few of the possible options. Also on my own I can suggest Xiaomi Mi Band 4.
For your scenario, this is the best option, since it is cheap relative to hours. The battery life is two weeks. The only thing is that there is no way to install third-party applications.
And read about what a smart watch is and why you can here.
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