My mi band stopped working after 2months but I can share the experience before it got spoiled.The mi band was an accurate fitness tracker and I barely charged it twice during my 2 months of usage.One thing I don’t like about the band is the amount of sweat that accumulates near it.
Other than that the mi band can track your footsteps, vibrate to wake you up and track your fitness data.The mi band battery almost lasts for 22-24days and it is available in vibrant colors