I got mine (Xiaomi MiBand 2) three days ago.
It's really nice. After three full days (±72hrs) of usage, the battery STILL is on 87%.
Gives you great stats (Steps, Activities, Sleeping, etc) on the MiFit app (works with Android & iOS).
It's so light, you hardly feel it on your wrist.
It's IP67 rated, I have showered, but I'm scared to swim with it though.
Little OLED Display Screen is crisp & clear.
Vibrates for incoming Calls, SMS's, WhatApp, Facebook, Twitter, and other notifications.
It has mutiple alarms (no sounds, just vibrates).
It does so much more than those useless Garmin or Fitbit fitness trackers do, and at a FRACTION of the price.
It has already done two firmware updates (via the phone App), and now you can change the Display to show the Time, or Time & Date).
Flicking your wrist, the screen changes, to show you Time -> Steps -> Distance -> Battery, etc. (user customisable)
I got mine for about R370 from
www.gearbest.com.
I ordered it in November 2016, only got it mid January 2017, BUT it was well worth the wait.
They are now selling in South Africa... for... wait for it... R1,480!!!
In the box, you get the Watch, a Black strap, and the charging connector (You'll need a USB charger, to charge it, like your phone's charger)
Mine came with a Chinese manual (which you don't need anyway), but everything on the Watch itself, and the Android/iOS app is in English.
I also ordered extra straps in different colours, and screen protectors, and they all fit on, and work perfectly.
I know it's scary ordering stuff from China, but I have done it a few times now, and thankfully, I've had no problems, yet.