Bests & Worsts Reviews from Amazon

I originally wrote a 5 star review for this watch, now I'm updating a couple months later. First off, this company pressures you into writing a good review for them offering you limited time deal for a $20 Amazon gift card if you do. I did not receive one for my original review though. Pros: affordable, fairly attractive minimal design, fairly comfortable, waterproof within reason, options for workout tracking/timing/calories burned is useful and motivating, I loved not having to pull out my phone to check time or a missed text, call ect especially at work. Cons: step tracker is off(I tested it fairly extensively)so the main purpose of the thing is kinda useless if you're looking for accuracy. Heartbeat/pulse monitor is VERY inaccurate so useless. I can not stress enough how utterly awful the app is. It's frustratingly slow, locks up no fail every time I opened it, it ether doesn't keep track/sinc or looses the information from the watch, ether way, the information isn't accessible, so yet another large feature that is completely useless. The clasp on my black band has already broken, luckily there's the 2nd band, but I liked the black best.. So all in all, wouldn't purchase again. Definitely wouldn't recommend buying. Though it did open my eyes to the usefulness of these things, so I'll be looking into purchasing a hopefully better one, from a different company.