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I have successfully installed ZeWatch2 iOS App on my iPhone 3 GS, but when I try to pair it, it says “FAILED”

Please note ZeWatch2 has two Bluetooth chipsets: 2.1 and 4.0.

Functionalities using the Bluetooth 2.1 will be compatible with your iPhone 3, ie: calls, streaming music - as long as it is paired to your mobile phone.

For features using the Bluetooth 4.0 such as setting the time and date, synchronization of activity (steps, distance, calories) and sleep data, setting custom reminders, voice control, you will not be able to configure via the mobile app (iPhone 4s and higher only) but only via our Mac or PC software available on MyKronoz website

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