Bests & Worsts Reviews from Amazon

final update: it finally broke. after 2yrs of heavy everyday use. i loved this watch. absolutely recommend. the battery life was outstanding my entire 2yrs of wearing it. easily a full month of use on each charge. below is a detailed review of my life with this watch: ==== day 1) this watch is everything i wished the pebble watch was. ridiculous battery life, always-on screen, nice-looking (looks like the Apple watch, i been told so by Apple-watch owner), heart rate, GPS, pedometer, sleep tracking, thousands of watch faces, nice fitness tracking info in the app, and syncs with Google fit too the only negative is that the contrast of the display isn't as sharp as it is on my Garmin vivosmart, but this may just be what happens with color e-ink displays. mind you, it's still very easily visible, plus has the backlight in case you need to see it in the dark, but it's just not quiet as clear as a black+white e-ink. gps and heart rate are both very accurate for running. they're not perfect, but way better than the phone gps or products wo GLONASS. i think this thing uses a Sony GPS-Glonass chip. I'm guessing the heart rate is better for steady activities than high intensity ones. I'll check and update the review later day 9) haven't recharged this watch since the day i got it. that was 9 days ago. i have been playing around with it a LOT, changing watch faces a bunch, set it to constant HR tracking for a few days, used the GPS on 4 runs, and i still have 67% battery left. so that's very impressive. the watch looks elegant i don't like to wear a watch when i sleep, so i can't tell you anything about sleep-tracking, but i imagine this would be one of the better devces for sleep tracking, both because of the lack of a need to recharge it, and because it's really light and thin. the screen is really clear and nice looking in direct light (unlike most modern smartwatches that fade in direct sunlight), and it has a nice backlight for low-light situations, as well. i have not taken the watch swimming, but i wash it under water after every workout, and it seems to do just fine under water. maybe the best thing i've found out about this watch is that there are 3rd party watchfaces and customization/stat apps (e.g. Notify & Fitness for Amazfit by OneZeroBit). plus it syncs with 3rd party exercise apps (google fit, apple health, run keeper, etc.). day 14) i lost like 20% battery life over the course of 2 days using a custom watchface that had a seconds hand. it seems like having seconds displayed on your watch will drain the battery even more than continuous HR monitoring. imean you'll still get an impressive 10+ day battery life or more, but, if my hypothesis is right, if you want a full month of battery life, don't display seconds on the bip. anyways, with all that recent battery drain and other heavy use and testing, I'm still at 39% battery after 2 weeks. i am a very happy customer. day 107) it's been 3 and a half months, and i've logged many runs and workouts at this point. this will probably be my last review update, as i've had plenty of time with the watch at this point the good: - i've only charged the watch a total of maybe 4 times, and never because i had to -- i always had 10-30% still left. i dont know why i had the incessant need to recharge it below 30%, the bip could've easily given me an extra week of use at that point. - traveling with this watch is the best -- you simply do not need to take a charger for it. it will easily last multiple weeks, regardless of how heavy your use is. - there are many additional watchfaces you can grab for the bip via 3rd party apps (and make your own!), and i found one that i just love, that has both digital and analog time displayed, along with steps/date/day/bt/battery/hr/weather. i don't think many other watches have this level of customization. definitely not android-wear or apple watches. - i wash this watch after every workout and can attest that waterproofing is solid - it's a beautiful watch. thin, light, elegant, and you can easily change out straps (im fine w the default strap, but 2 of my friends have both changed theirs to one that looks like an apple-watch sports band) - GPS and HR monitors work great, and the pace/stride info seems very accurate - the display is always clear and always on the bad: - one bad thing is that if you want to leave your phone at home when you go for a run with the bip, you will be without music. i guess you can get headphones that can store music on them, but the watch itself has no music player. - the default app does not show you a calendar view of your workouts the way that Garmin did. i miss that view. you can have it automatically synced with google fit, but... - google fit sync is not the best. it logs all the walks, which is a lot of activity in the google fit journal that i just do not want. i wish there was an option to log only runs, not walks. HR is not synced w google fit for some reason tho, wish it was overall: - [if u dont need it to be a standalone mp3 player] buy it. this watch is on par to compete with some of the best smartwatches and activity trackers, except it beats all of them when it comes to battery life and price.