I am using Mi fitness band hrx edition from last 2 weeks and I am really appreciate with these band. It without heart rate monitor but it comes with affordable price, its so good. It is very good for handy use. I am use mi band in daily rutine it gives me data like how many steps are walk by me during a day. It show and remember me notifications of apps such as call, whatsapp message, etc. It show time so I can use these band like watch. More battery life. In mi fit app the data of these band are displayed. Sleep monitering is its one of function and it is helpful.Mi band is water and dust resistant so you can use it rough and tough.
I suggest these band for new buyers.