Arendo - heart rate belt / heart rate monitor (Heart Rate Monitor) | Chest | Transmitter with Bluetooth Smart 4.0 | waterproof | 14 grams | Black | Apple Products | with App i-gotU Sports on many Android devices (equipment)
Couples immediately with no problems. The pads of the belt must only be moistened, then Runtastic shows already on the heartbeat. No complicated pairing or setting. Also, the pulse monitor must not be turned on. Upon detection of cardiac activity, the monitor turns on. Around, iPhone turn on and off. Price performance is very good.