Runtastic HR Combo

Compatible with Bluetooth® Smart Ready Android™ devices running Android 4.3 or more recent versions
Compatible with Bluetooth® Smart Ready Windows Phones running WP 8.1, or more recent versions
Allows pulse data transmission without additional adapters via Bluetooth® Smart wireless technology
Very low energy consumption
Bluetooth® Smart technology and 5.3 kHz transmission
Belt is washable
Battery can be changed independently