Xiaomi Mi Band 4

OK so after 21 days I still have 36% battery life. Simply amazing. Just keep Bluetooth off and only sync once per day at nights when you take it off. The app is excellent and shows you how you did during the course of the day.......Excellent build quality and design... you will stand out in a crowd. If you want a smart watch then go buy one... this is a tracker and an excellent one too... screen is too small to read notifications anyway so I just keep Bluetooth off... if you get a notification I just pick up your phone... duh.... its always with me and besides who want constant Bluetooth radiation on their wrist.... not me........ so what if I don't get the smartwatch features... I bought it as a tracker not a smartwatch... Tracking is pretty accurate and heart rate on point. Excellent buy..... just dont try to use it as a smartwatch....... it will frustrate you especially with the small screen... at the end of the day your phone is going to be close by.. just pick it up........ I only turn on Bluetooth before I start a run, going to do something where my phone will be in a pocket or not reachable. But turn it off right after.. doing this will get you to 1 month on 1 battery charge... no other tacker in the world can do that....... well I dont know of any...do you ? For the price this is a winner........ hit the screen many times... not a scratch..... water proof and soap proof.... swim proof........ you name it.......... its tough...... many bands to choose from on amazon to match your outfits....... its stylish and affordable... I am a watch person and have many watches... I did not want to put them down just to wear a smartwatch and I dont want to wear a regular watch on one wrist and a smartwatch on the other wrist...... so I got a tracker instead.... which I wear on my free wrist....... it very comfortable and looks different from other trackers out there.........great job Xiaomi

Before buying this watch, I got another FitBit knockoff watch that at its best (for the first couple weeks) lasted 4 days even though the company touted "long battery life," which was disappointing, and then within a couple months it had to be charged every 36 hours! The constant charging drove me nuts. I was tempted to throw in the towel and pay real $$$ for a real FitBit until I saw this review. I decided to give an off-brand one more shot. I'm glad I did! This one was even cheaper than my first one and it's been amazing! The battery actually lasts even *longer* than the company claims (and longer than my husband's FitBit). Last month it lasted 23 days on a single charge, and today I'm on day 18 and still have 36% charge left. I also think the pedometer is a bit more accurate than the last watch - none of them are perfect, of course, but this seems pretty close to my treadmill's mileage tracker. The stopwatch and timer are a nice bonus (esp. for work & cooking) that don't require you to sync with the phone. You can't set up or change the alarm without syncing with phone, which is a bit annoying, but not a big deal. (If you set a daily alarm - a feature I don't use - you don't need to sync daily.) I really doubt *any* smartwatch can accurately measure pulse or sleep time--if you need accurate data on that, you should use more specialized pulse-tracking equipment or enroll in a sleep study--so I don't use or care about those features much. But the few times I've glanced at them they seem to be in the right ballpark. The watch is also pretty easy to use, syncs easily and and it's fun to change the watch face (although I wish they had larger font for the steps and date, and more professional-looking watch face options instead of just cutesy ones for kids or preteens). Once you download app, be sure to look for "Mi Smart Band 4" option under "Profile" tab - that's where most of the options I care about are, which took me a little while to figure out. Overall: great watch for an amazing price!!

I was at first skeptical of this more complex model of Mi Band (having come from the simplistic Mi Band 1 and 2 before), but I decided to jump in and see how it was, and my verdict is that this makes all of the right choices to be the best smart band on the market. There is literally no reason to buy any of the other bands that are several times the price because this has them all beat.Its best asset is its battery life. It can legitimately go 3+ weeks of continuous use under the right conditions (no heart rate or sleep tracking). Compared to a similar Fitbit that has to get charged every 3 days, this is amazing. It's the only thing I've seen approach the original Mi Band in terms of "wear it and forget it" status.The next best asset is customizability. There's no point in having a big colorful screen if you can't do anything with it, but luckily there is a large custom watch face community that makes countless different options so you're not limited to the lackluster options that manufacturers may leave you with. I have even started making my own with easily available tools.The reason I love this though is the notification abilities. The native app is alright for this (it got much better for this band than it was for the Mi Band 2), but it's the 3rd party apps where this shines. My favorite is Mi Band Tools, which allows for custom app alerts, icons, vibrations, and even Tasker integration for whatever I need to do.Even the fitness tracking is good. There's no GPS, but if you keep your phone on you, it will track your run and measure your heart rate well. The normal pedometer is also very accurate. I tried the sleep tracking for a bit and it seemed to work, although it's a little too bulky to sleep with in my opinion.Overall, this is an amazing purchase and is easily worth several times what they charge for it because it blows $150 smart bands (or $300 smart watches) out of the water.

Buen producto

Mi è arrivato un orologio usato tutto rigato già accoppiato..la confezione era senza cellophan e con il sigillo di garanzia tagliato

Pour l'utilisation quotidienne de mes pas, du minuteur, du chronomètre etc... Et idéal avec la balance de la même marque pour calculer sa masse osseuse, sont poids, sa graisse corporel etc...

Es original, nada de copias. Al principio pensaba que había algún problema por que no encendía al cargarlo por primera vez, pero fue por que lo pusimos en una base de cargador normal. Al ponerlo en el puerto usb del ordenador todo funcionaba correctamente. Así que fantástico. Envío rápido como siempre con amazon prime.

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