The iFit All Day Fitness app is used to upload and manage your iFit Link has the following compatibility requirements.
For IOS, an iPhone 4S, 5S, 5C, and above are required. iPod Touch 5th generation and above.
Android 4.3 with Bluetooth 4.0 and BLE is required.
The iFit Link uses Bluetooth low energy, also known as BLE.