The good : -The Mi Band 2 is despite packing in a heart rate sensor, sleep tracking, water resistance and a battery life of a week.
The bad : -The fitness band doesn’t offer the exercise tracking that would make it a perfect accessory.
The bottom line If you just want a basic fitness tracker for walking, the Mi Band 2 does the job fine, but you’ll have to look towards more expensive trackers if you want more features.
the Xiaomi’s Mi Band 2, the Chinese company updates its original $13 fitness tracker with a slightly more expensive version, adding new features such as an 0.42-inch OLED display and a heart rate sensor. The 149 yuan price, which converts to around $22, £17 or AU$29, is a fraction of what you’d pay for similar products such as the Fitbit Alta.or, even, Fitbit’s less-expensive Zip. It’s not yet on sale on Xiaomi’s US website.