I am using this mi band from Xiomi from last half years and found it very great
It has three white led at the top of it which indicates the mission or goal at charging it also indicates battery life
It will sink with mi fit app via Bluetooth and gives you update about all the steps you have taken and it will also track sleep timings at night
It is accurate. And you can see the details of per day par week and per month
It's battery lasts for 35 to 40 days. It will vary as per usage
It will get notification thorough vibration of calls and massages
