The face is easy to read and change. Negative: the strap is difficult to fasten onto the watch and mine came off in the grocery store. I didn't notice it. Fortunately, it landed in the basket. I had to take it to a jeweler to get it fastened together.It works , nothing flashy I'd have to say if it your first smart watch ok ,Here you go.Pros: I wasn't expecting much from this watch but I was surprised with the performance of the watch specially battery life and which is impressive, for me with continuous use even after using during night to record my sleep it still last me between 6-7 days in single charge, it's pretty comfortable and watch band is exactly like Samsung watch which fits nicely, comfortable even after prolonged used. Accuracy is perfect, counting steps, blood pressure, oxygen level and sleep records too. I did compare with galaxy watch. I didn't test for water resistance but I used while washing my hands so far no issue. Samsung 44mm doesn't fit my wrist comfortably but this fits perfectly.Cons: it doesn't have ECG and body composition like Samsung watch but at this price you can't expect more. I faced little difficulty while charging at first might be my charger was not correct but after few tries it worked perfect.I highly recommend this watch.Will not connect to my SamsungAfter two weeks I am really frustrated. The features function inconsistently, and the interface with the phone software leaves much to be desired. The brief instructions that came in the box were vague and almost unintelligible. I looked in vain online for a more complete guide, and found nothing on this model. I did download instructions for a similar model, but many of the suggestions didn’t work. The sensors on the watch seem to work for things like counting steps and measuring heartbeat rate. I just wish the operation were more intuitive.I have three nice "regular" watches that I'm very happy with, except that they chew through batteries. That's why I wanted to try a digital watch. But I can say now that I'll just keep changing the batteries...What I did (unexpectedly) like about this watch was the comfort of the band. I prefer metal watch bands because of the weight, and generally dislike rubber watch bands because they tend to chafe. But this one was VERY comfortable. So that's a very big plus.But there is nothing else I like about it at all. The app only works with stock notification apps, so I can't get text message notifications on it at all (and I never did get the email notifications, even though every possible setting was turned on). The screen doesn't stay on, and has maximum display time of 15 seconds - although my wife tells me that's standard for digital watches, that's a dealer-breaker for me... what's the point of having a watch it it doesn't tell me the time when I'm looking at it? And it doesn't have a plain "clock" screen - in fact, the screen shown on this listing isn't even an option.I uninstalled the app and am returning this ASAP. Especially without an always-on screen, I just can't foresee *ever* getting a digital watch.Good battery life. Nice size, not too thick. Not very good reliability though. I had the same failure in the first one and the replacement. If you hold the screen, it goes into face selection mode. Within a few days of using each one, they would go into that mode on their own, without even being touched. Then they would start doing it while sitting on the desk, not being worn or touched. Needless to say they both were returned. Their customer service was less than useless. I had to go through Amazon to get it replaced/refunded.Very pleased with this watch! The down low was simple to my phone. I have no negative opinions. This is my third fitness watch and by far the best! ⭐⭐⭐⭐⭐