Polar devices work with most modern smartphones. Here are the minimum requirements:
Polar H10 and Polar OH1 heart rate sensors are compatible with Android 4.4 or later and iPhone 4S or later.
There is plenty of variation between how different Android devices handle the technologies used in our products and services, such as Bluetooth Low Energy (BLE) and different standards and protocols. Because of this, compatibility varies between phone manufacturers, and unfortunately Polar cannot guarantee that all features can be used with all devices. If you have more questions, please contact our customer care.