I bought this recently direct from the manufacturer as I didn't trust the "ebay" sellers at $20-$40.
I bought this watch as a replacement for my Apple watch as I will be travelling for 5 weeks and didn't want to carry the charger due to poor battery life of the apple watch.
All I was looking for was a watch that counted steps had alarm function and would link to my Iphone.
Here is my experience,
The app that is linked used is poor. only good for up loading steps
The alarm is not really loud enough and only goes a short time if you are a deep sleeper like I am it will be easy to miss.
There is no snooze function.
Changing the time manually is a pain as there is no "backwards function"
The phone alert and message function also doesn't work properly for messages or phone calls
You can't add other messenger apps to the phone such as "hangouts" or Viber
The APP doesn't appear under the notification settings in your phone.
The alarms in the app settings don't work.
you cant't turn the beeps off
The phone doesn't stay on functions for long apart from the stop watch.
If i knew this prior I would not have bought the watch you do get what you pay for, would have thought in this day and age for A$130 there would have been a few more function or better functionality.