Is the Mi Band 1S any better than the original Mi Band?

[Coga19000]

I have been considering bying a fitness tracker as of late. After a lot of playing around , and after finding out that the Mi Band is by far the cheapest one around, and with considerable protection and battery life, I got intrigued. However, I also found out that it does not have a heart rate monitor, is a bit generous on the steps, and the LEDs do not light up correctly, which was a disappointment. And then MiBand 1S came out, with a new heartbeat monitor.
Anyways, this is great and all, but there is not enough information about it avalaible to satisfy me - not even in the official Mi.com page, which doesn't include it for some reason. So, if anyone knows whether or not the steps are more accurate, the heart rate monitor is accurate enough, and if generally it is a worthwhile improvement over the original Mi Band, I would really appreciate it. Oh, and how much the monitor lowers the battery life. I do not worry about it much though, since the original held for at least a month.

PS: I have a Xiaomi Redmi Note 2, so yes, I can use the Smart Unlock feature. Which is one of the main reasons I tend to gravitate towards the Mi products. Edited November 19, 2015 by Coga19000