"Firstly this is a solid design, sturdy, and heavy in a good way for a budget smart watch. They even provide a screen protector which is very cool and easy to install. I did however lookup on youtube a video on how to attach the screen protector since I have never done that before. Its rated as military grade quality and tested under extreme conditions, water proof 50M, I mean this watch is really built to last which is truly great to see. I love the charging holder which is so much better than others out there that just use a tiny magnetic connector on a wire. This one is fatastic, watch clicks into place with magnet then starts charging with a cool looking animation to prove it. There is an app involved as most devices like this need one to pair the device and add fucntionality. There is no touch screen for tapping on the watch to wake it or activate the display. But you can just tap the side button for that or raise your wrist to wake. I love the functionality of this watch. It can do so much. Whether it be checking your heart beats per minute, your blood pressure, oxygen levels, how much sleep you get, fitness levels, steps and calories burned, this thing can check it all. Its all a guide to your personal health metrics."