What a watch at this price does well
Under OMR 20 a smartwatch does the fundamentals properly and leaves the rest alone. Expect a clear colour screen, continuous heart rate, sleep tracking, step and workout logging, and notifications from your phone on your wrist.
What you should not expect is an app store, contactless payment, or the ability to reply to a message with more than a preset. If those matter, the budget is different.
The single biggest advantage at this end of the market is battery life. Without a power-hungry always-on display and app platform, these run for many days on a charge - which means they are actually worn at night and actually track sleep.