Which phones are compatible with my Smartwatch? Wear OS by Google works with phones running Android 6.0+ (excluding Go edition) or iOS 10+. Supported features may vary between platforms and countries. All devices are Bluetooth® smart-enabled with an improved data transfer of 4.1 Low Energy. Related articles How do I answer phone calls on the CZ Smart Gen 2 watch? Setting up your CZ Smart Watch How do I know which phones are compatible with my smartwatch? User Manual for CZ Smart Gen2 Hybrid Smartwatches (YF30) What if I don't receive notifications on my watch?