It’s a cheap option and it works relatively well. I notice some of the measurements are wildly inconsistent but I really bought this for the step counting feature. At a few points it measured my heart rate at 209 but when I measured it myself, it was at 64. It also thought I slept 3 hours last night when I actually slept 8+ (I know because it was the best night of sleep I’ve had in a while). It sounds like I’m knocking it but I’m quite happy and frankly, even with the inconsistent measurements, you can quickly figure out which ones are bogus and which ones are relatively accurate. If you want a smartwatch but don’t want to pay and extraordinary amount, this is the one. It tracks steps well and beyond the inconsistencies, it allows me to get a pretty good reading on my heart rate, stress and sleep. One last thing, if you sweat or wear sunscreen, it’ll likely not get proper readings.