Just an awesome watch all around. It's light weight, durable and best part thr battery last a really long time. Charging is easy and doesn't take long at all. I have this and the black color one. Great watch, no complaints. Watch faces are changeable per your liking on the app also.Mobile appThe watch works great. It is a large watch so that might turn some people off. It’s handy to use for tracking blood pressure, blood oxygen levels, and heart rate.Again. Everything was great just took very long to review. Over a month.Mobile app needs a little work. More watch faces would be great. Battery life is great and touch screen is smooth.Worthless. The watch needs an app to work but the downloaded app does not open, it keeps crashing.Bought this watch because of my occupation really thought it would be more heavy duty really difficult to program can't even set the time also difficult to returnNothing was easy to use, did not like it at all! I returned it!