The OvuSense App is compatible with Apple devices running iOS version 8 or later and NFC enabled Android devices running version 4 or later.
If you are using a Huawei device, we would recommend that you attempt to connect the Sensor to your device prior to removing it from the sealed bag. Some users have reported setup issues with Huawei models and once the Sensor has been removed from the bag, we will not be able to accept a return.