My experience say that mi band 2 is a fitness doctor. I am using mi band 2 from one year. And they till today did not defective. Mi band 2 has a good performance and excellent working. If say about is its price, you can buy in 1999rs. But now mi band 2 is not selling and hrx edition of mi band is selling within 1299rs. About its featurs- step counting, heart rate sensor, 20-25 days battery life, calories sensor and all about good.
Thankyou.