Best answer: You do not need an apple watch for this unit. There are many other great features like:
-Play back audio files and charge your device at the same time.
-Along with a built-in microphone, enables use as a hands-free speakerphone for most Bluetooth-enabled mobile phones.
-Provides a rapid charge for most USB-powered devices. Gives you opportunity to charge compatible devices wirelessly.
And much more...
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