Ativ S and Bluetooth 4.0 LE ?! topic

Hi all, I just brought a MS Band, I want to know if Ativ S with latest firmware (the one released with official 8.1.1) is Bluetooth 4.0 capable? I haven t noticed battery drain...but I want to be sure if it is 4.0 or not. I read somewhere that this update shuold enable it.
Sent from my Ativ S with Tapatalk 2

Sent from my Ativ S with Tapatalk 2