In general, I liked the device, there is hope for fixing the jambs in the firmware ate.
Pros below:
They sit well on the hand, the strap is comfortable (individually), they hold the battery for a long time, they measure the pulse relatively accurately in static, they measure pressure relatively accurately and quickly for this class of devices (after all, they measure, and not randomly, as on other devices with this function) , quick start from off (almost instantaneous), sloping body (does not gSee full review