Xiaomi Mi Band 2 Miband 2 With OLED Display Wristband Bracelet Smart Heart Rate Fitness Tracker 20 Days Standby Time - Black Color (View amazon detail page)

A lot of people have been criticizing how this doesn't work or that doesn't work.First things first, this is a good band, but not the best band. It gives you time and heart rate, and steps. Yes somethings are very inaccurate, but you literally paid 40 dollars vs 100+.I head to the gym about 3 times a week, sometimes only twice if I'm busy with work or too tired my body can't work out. What you need to understand is heart rate is fairly accurate IF you follow the instructions. It says to tighten your band ABOVE your wrist and don't move while it gets your heart rate. Works 100% of the time if you do as it says. After running my heart rate is always steady nothing crazy jump from 70 to 140 and back to 100 or anything. If you follow the instructions you will get an accurate measurement.You want to pair the band via the app not through your own Bluetooth.Turn on Bluetooth, go to the app and pair it. Notifications and everything work just fine. The notification make the band vibrate for calls, text, and certain apps such as Snapchat, and chatting applications. It always works for me. If you don't get a notification don't blame the band, go check if you have it turned off or perhaps somethings wrong with your phone.Steps tracking is somewhat innacurate. This band is build like a pedometer so everytime you swing your arm/band it counts in 'steps". That's the flaw about this. You basically paid for a fancy pedometer with heart rate/time/notification.Sleep tracking is fairly accurate. You need to turn it on via the app. The only thing is it times you when you fall sleep is around when you stop using your phone. When you get up it times you up when you tap your band and get on your phone. Otherwise I'd give or take 5-10minutes of sleep time and wake up time and everything else seems accurate :)

PROS:- Lightweight and comfortable- Accurate readings for steps, sleep, and heart rate- Long battery life- Excellent value for the low price tag- Syncs with Google Fit- Excellent 3rd party applications that open up the Mi Band 2's capabilities- IP67 rating means you don't have to worry about getting it wetCONS:- OEM software is lacking in significant ways- Calorie tracker is fairly inaccurate**PERSONAL EXPERIENCE:I used the Fitbit Charge HR for over a year, Mi Band 1s for over 6 months, and have now tested the Mi Band 2 for 1.5 months. I workout 5x a week, try to eat as healthy as possible, attempt to get 6+ hours of sleep a night, and attempt to walk at least 10,000 steps a day. For me, having a fitness tracker is not only fun, it helps me to monitor exactly what habits I am maintaining on a daily basis. In all honesty, I have no real complaints with the Fitbit Charge HR and I still consider it an excellent fitness tracker. However, as an avid Android user (I use the Nexus 6P and stay up to date on all things Android related), I wanted to explore options that would sync with Google Fit and potentially have more room for tinkering. That's where the Mi Band 1s and now the Mi Band 2 enter the picture.I was able to purchase the Mi Band 2 through GeekBuying.com in late May (it was supposed to be a pre-order) and ended up receiving one week later in the first week of June. I was pleasantly surprised to say the least. Be careful to ensure that you are purchasing an authentic Mi Band 2 (you can google fake vs authentic Mi Band to get a quick overview).**FIRST IMPRESSION:The packaging is simple and almost identical to the Mi Band 1s–just a simple natural colored cardboard box with the band, charger, and manual inside. The band is comfortable to wear, the silicone is soft and flexible, and the included charger is easy to use. After unboxing, I charged my Mi Band 2 for 2 hours and was ready to go. The initial setup slightly more of a pain than I anticipated. The OEM Mi Band software would not connect with my Mi Band. From some research, I was aware that this was a common issue with the Mi Band 1s and 2 because of the less-than-stellar OEM software. The fix? Download "Mi Band Tools" or "Mi Band Notify" from the Google Play store and either of those apps will connect with the Mi Band 2 instantly, thus allowing the OEM software to also detect and connect with the Mi Band 2.Next thing I noticed? The OEM software stinks. Sure it's fine for displaying steps and sleep data, but that's literally it. The Mi Band 2 is capable of continuous or periodic heart rate monitoring, yet the OEM software only allows for user-activated heart rate monitoring (meaning you have to open the app, press a button, and then it gives you one reading of your heart rate) or only continuous heart-rate monitoring when you choose start a "workout" (some versions of the OEM software have received an update allowing a work-out mode). The problem with the work-out mode is that the information is limited to only the work-out setting and does not integrate at all with your overall tracking stats. I was incredibly disappointed to say the least. If this was the only option for the Mi Band 2, I would give it 1 star and just give up. Fortunately, for Android users, the 3rd party apps "Mi Band Tools" and "Mi Band Notify" open up a whole new world of capabilities for the Mi Band 2 (Mi Band Tools updated their app and the Mi Band 2 is now fully supported; Mi Band Notify is working on providing support for Mi Band 2 still). Personally, after spending some time browsing all the features of the two apps, I ended up going with "Mi Band Tools". With this app, you are able to sync directly with Google Fit, you can set the heart rate monitor for continuous tracking (for workouts, for example), periodic tracking at any interval you please (track heart rate every 10 minutes, 20 minutes, etc), all information is displayed in helpful charts that are highly customizable, you can set vibration alerts for any app, you can set different icons to appear on your screen for any app, and more. Trust me, check out the two apps and you'll be impressed with what your little Mi Band 2 will be able to do!**PERFORMANCE:I'm a nerd over tech stuff, so I decided to wear the Mi Band 2 on one wrist, and my Fitbit Charge HR on the other wrist for two weeks straight to get an accurate comparison of the two bands (I had done the same thing with the Mi Band 1s in the past, and will include small comparisons with the Mi Band 1s as well in this review). After two weeks of steps, workouts, sleep, calorie counting, and heart rate tracking, I was able to draw some general conclusions between the two bands, as follows:SOFTWARE:OEM Mi Band software stinks, as I have previously described. Fitbit's software is far superior in every way (social integration, UI, etc). However, with the 3rd party apps available for Android users, the Mi Band 2 becomes a lot of fun to use with plenty of tracking data available. The biggest perk is syncing with Google Fit (for those who care), and the ability to export data onto an excel file (meaning you actually own your information, instead of it being locked into Fitbit's universe). VERDICT: Slight edge to Fitbit because it is simply more polished.STEPS TRACKING:After two weeks of data, my Mi Band 2 consistently tracked slightly less steps than my Fitbit. However, both bands were within 5-7% of each other throughout that time. For what it's worth, when comparing the step counts with my Google Fit's count measured directly from my phone, my phone's step count was also lower than my Fitbit and closer to the count provided by my Mi Band 2. VERDICT: DrawSLEEP TRACKING:The Mi Band 2 seemed to be less accurate with sleep tracking. The Fitbit was able to track restless sleep and when I was awake more accurately. The Mi Band 2 had the tendency to over calculate the amount of sleep I was getting, and failed to detect that I was awake multiple times while in bed (i.e., reading in bed). However, the Mi Band 2 did a fine job of calculating deep sleep vs light sleep, and for the most part, results were quite accurate in comparison to Fitbit. Verdict: Fitbit does a better job with sleep tracking.CALORIE TRACKING:The Mi Band 2 simply under calculates the amount of calories burned throughout the day. For one, it only measures calories burned with respect to how many steps you took during the day, and does not factor in your BMR (basal metabolic rate, which includes how many calories you burn normally in a day depending on your weight, etc). It appears to simply use a generic calculation that every 1000 steps is roughly equivalent to 50 calories burned. Fitbit on the other hand takes into consideration steps, BMR, and heart rate (to some extent). VERDICT: Fitbit does a better job with calorie tracking.HEART RATE TRACKING:Both bands are relatively inaccurate in tracking heart rate due to technological limitations (you can't compare bands on your wrist to heart rate sensors that wrap around your chest). However, once your expectations are adjusted, I was able to see that both the Mi Band 2 and Fitbit Charge HR did pretty good jobs with accurately tracking my overall and general heart rate throughout the day. In fact, the Mi Band 2 did a slightly better job of providing accurate heart rate readings. My Fitbit Charge HR tends to under detect my heart rate, especially during workouts. However, the Mi Band 2 was able to track my elevated heart rate during intense resistance training exercises much better. VERDICT: Mi Band 2 does a better job with heart rate tracking.BATTERY LIFE:Easy. Mi Band 2 lasts WAY longer. Fitbit Charge HR averages 3-5 days. Mi Band 2 averages 10-35 days depending on the frequency you set for the heart rate tracking. With heart rate tracking limited to just workouts, I was able to go 31 days and still had 9% battery life left. With heart rate tracking every 7 minutes, I am currently at 14 days with 42% battery life. VERDICT: Mi Band 2 is much more efficient with battery life.OVERALL WINNER: In my mind, the Fitbit Charge HR is still more polished and ready to go, and under objective standards, it is the clear winner. The OEM software is excellent, the band is comfortable to wear, all tracking is pretty accurate, and there is nothing really to complain about. However, if you are looking for a fitness tracker that is far more affordable with almost all the same features (Fitbit Charge HR is able to track stairs and elevation; Mi Band 2 is unable to), then the Mi Band 2 may be the right one for you. I personally value the ability to track my fitness data on Google Fit (rather than have it all locked on Fitbit's software platform), and the ability to tinker with how often I track my heart rate, etc. As a result, subjectively, I like the Mi Band 2 more. In terms of the difference between the Mi Band 2 and Mi Band 1s, I would say it really just comes down to having the screen (and you don't sacrifice battery life at all with having the screen because the battery is likely larger in the Mi Band 2. I actually got slightly less battery life out of the Mi Band 1s on the same tests); and the Mi Band 2 does not appear to be plagued with the issue of the tracker popping out of the silicone band unintentionally (this happens occasionally to the Mi Band 1s). Other than that, the Mi Band 1s and Mi Band 2 track the same things.***Fun Tip: Another perk of the Mi Band 2 is that I was able to sync it with Endomondo to serve as a continuous heart rate monitor for my workouts and bike rides. As far as I know, this is not possible to do with the Fitbit.

I used the JaWbone UP Series (UP, UP24 and UP2) over the years beening using the MI Band 2 for 3 days. I bought MI Band 2 because I would like to have a fitness tracker with time and display the steps instead of checking in the phone app. Also, I am not too happy with UP fitness trackers due to quality issues.I have been using the MI Band 2 and I like it. It is light weight, comrotable, long battery life and keep accurate readings for steps. The UP series do a better job in sleep tracking and have better application.

The fitness tracker works absolutely flawlessly. I am an avid runner, so I tested it against my Garmin Chest Strap, LifeTak fitness band, New Balance Heart Rate Monitor (Wrist watch) on a 5 mile run. The Xiaomi was just as accurate as the other (more expensive) devices on heart rate, step count, distance and calories burned. The heart rate monitor was closer to the Garmin (chest strap) than the other devices. Additionally, the Xiaomi measures alerts me of incoming phone calls, text messages and warns me when I exceed my maximum hear rate. A great buy for the money

I thought it was a great deal for the price but I always felt like it was calculating my steps a little low. This was verified when I just got a new tracker and over the course of 5 hours the new tracker tracked almost twice as many steps as my mi band (wearing them on the same wrist). So if your focus is on accurate step count then maybe not this model but if you want a watch that can notify you of phone calls and text messages it'll do that.

Me enviaron el producto mucho antes del periodo aproximado. Llego en perfectas condiciones. La banda es de buena calidad. Lo malo, la mejor aplicación para explotar la banda no está disponible para iPhone. Sin embargo, es un buen producto a un precio accesible.