I love this thingThis is my first smart watch so I didn't know what to expect. I wanted to give a better review, especially since one of the developers has helped out a lot and plans on submitting suggestions that I made to improve it.Pros:- good battery life compared to reviews of other watches- the watch is fairly simple to use- it's a nice looking watch and is snug on my wrist- I like that you can track heart rate, blood pressure, oxygen level, etc.- you don't have to leave it connected via bluetooth, but can sync it from time to timeCons:- it's really hard to see the display in the sun. I've tried different faces but it defeats the purpose of the watch when someone asks me what time it is and I have to shake my head and say that I don't know. Would've given it 4 stars had it not been for this- the button isn't working as well as it used to (after 6 mos), being hard to turn on the display at times- you can't set the countdown for specific times, like 6 minutes and 20 seconds. It's only in 10 minute increments which is quite limiting when I use this feature often- you can't set alarms without using the app- the step count isn't very accurate, but is that true of any smart watch or app?- the activity tracker tends to turn itself on when I'm surfing. I don't touch the watch, want to check the time (which I said is hard if it's too bright out), and have to stop it & back out of it. I haven't found a way around this annoyanceI was looking for a smart watch to help me with clinicals for nursing in order to help with timing and just keeping track of time. I was a little skeptical of this watch at first because I had a watch the would barely work and was worried that this would be the same. When I received this watch it ran beautifully, the screen is clear, easy to set up, etc. It has many clock faces that you can choose from, it displays your steps count, weather, and heart rate with the time and has many other functions such as O2 saturation meter or sleep and wake timers. It is easy to charge, it uses magnets in order to charge the watch so you don't have to plug it in at a port. The wrist band is made of plastic and rubber and fits smoothly around my wrist. It feels comfortable and is not bothersome or annoying at all.Some of the apps are not as accurate as the others, I noticed that the sleep and wake timer is not accurately measuring my sleep and wake times (It did not really measure anything). The heart rate was very accurate. The blood pressure sometimes would be accurate. The O2 saturation was very accurate.Overall it is a good watch to have.I like the fact is more durable than any of the other least expensive (<$50). It fits the bill for what i need: time, notifications, and steps. Although i think its more accurate counting steps when you're doing an activity like walking or running. My phone in my pocket tends to be 500-1000 steps more than the watch. I like the remote feature for the camera also the biometrics that can be checked as well. Heart rate, pulse and blood pressure. I would recommend and purchase again. 3 day or more on battery life is awesome too. Use the app to monitor it closely though because when it dies there is no warning.I have been using this watch for more than a month. The watch has a perfect design outside and fits perfectly on my hand. I just love its design. I like performance of the watch as in the battery life is pretty good. I have only charged it once. It was many watch faces and I like keep changing those faces. It gives me weather updates, my daily steps, the miles I ran, heartbeat, BP, sleep and oxygen level. It shows very beautiful chart for all these statistics so it's easier to analyze all these essential daily activities and exercises. The touch screen is very smooth as well The android app linked to it is very easy to use and also allows us to set our goal. I really can't believe that I got this amazing watch for such a low price. I must say it looks really classy when I wear it.