Look & Feel: Looks simple and Works Perfect and comfortable to wear all day & night.MI Band monitors your activities and habitsMi Band looks simple and very comfortable to wear and the quality of the strap is really good. You dont even feel it like you wear once you get habituated.The Battery backup is also good for 1 to 2 weeks without need to charge again. You can pair it with your android mobile phone or apple iphone easily.It can track your activity. You can also set how much distance you want to walk everyday. So that it reminds you to perform the task very often. Mi Band can also alert you when receive a call so that you wont miss any call. It can also show you who is calling without checking the mobile phone.It can track the number of foot steps, How long you walked in Kilo meters, Calories burnt for the day. And the Smart Bands available battery charge. Its automatically reminds based on your last days activity For example if you have a habit of doing exercise / activity at a particular time. Mi Band is smart enough to remind you to walk or play the game at the same time.Battery life is really good. heard there are some smart bands from xiomi Mi Band that lasts for 1 month. But that doesnt have LCD Touch display. But Mi Band has good touth screen. You just need to tap on the screen bottom.1. One Tap can show the time and date.2. Two Taps can display number of foot steps for day.3. 3 taps distance walked in Meters.4. Number of Calories burnt for the day.I have also tested taking bath when I wore Mi Band. It is still working fine. It makes it clear that it is water resistant.Limitations: Only thing I found it lacks brightness when you are outside in the sun, the display is a bit dull. It wont adjust the brightness of the screen automatically based on the day light or sunlight.Finally I would conclude Mi Band HRX Edition has everything that is needed except answers calls on watch and heart beat / pulse monitor.It can only track outdoor running, treadmill, outdoor cycling and walking. But there few other apps that support many other activities. I would like to mention the apps in another review.Behavior tagging allows you to make the device understand what you do. Cycling, Stand, Run, Sit Ups, Walk and many other. So that it can understand what activity you perform and remind accordingly. Mi Band may also remind you to perform tasks for a specific time. Mi may also use these behavior tagging for releasing these future mobile apps and for its future development of the the app.If you not keen on heartbeat monitoring, smart watch functionalities like receiving calls, reading text messages on smart band. Overall its a nice experience for me and it really serves the purpose to make you active.Mi Band is one of the best selling smart bands.