I bought this MI band about one year ago at a price of ?999 and I am currently using it. This band is quite accurate and cheap and best fitness band the band also detects the sleeping activity and it is also quite accurate the battery life of this fitness band is excellent. It gives backup of atleast 30 to 40 days and this band vibration feedback is also good. The step count is also good. If you want to buy a fitness band in this range then go for it.