Works with most smartphones, including iOS and Android.
Train Smart, Get Fit.
Worn on your arm, the Rhythm+2.0 optically measures blood flow and body movement, making it as accurate as a chest strap monitor, but much more comfortable and convenient.
• 24 Hour Battery Life
• Wireless Up to 100 ft. Range
• Green/Yellow Optical Sensor Array is accurate with all skin tones.
• Works with more than 200 fitness apps.
• Waterproof & Dustproof
• Dual-Mode Radio Transmits to both Bluetooth® and ANT+
U.S. Patent No. D952,862