a very useful device for a very convenient price! This device works above my expectations, when i compare it to my other smart watches, this is simply because the way you can easily charge this product without the need of worrying to carry a cable. When i opened the package i thought i was missing a cable but i was very surprised to see the way it was built with a usb output.
I use this smart watch everyday because it has a good battery life unlike many other watches but what really makes it the top is its heart rate sensor.
The product is very simple and easy to use and connect with you mobile phone, the sync is straight forward simply just slide down to update this enables you to receive regular in-depth information on your fitness progress, you don't have to wait for the bluetooth to connect although it must be kept switched on, this was a amazing discovery i did and this please me more because i also use bluetooth headphones, this meant i can sync while listening or using another bluetooth device.
The only recommendation i have is that the two metal strap holder parts should be a bit different in terms of the way we have to get together, although it does not make much of a difference because surprisingly it does not come or fall out an random times.