You won’t be able to recharge the buds of the Upgrade version in your old cradle, or recharge the old buds in the new cradle. The Elite Sport Upgrade represents “true wireless” earbuds because there’s no wire connecting the buds. That means you can wear the buds while swimming – as long as your smartphone is waterproof (as is the Samsung Galaxy S8, among others). You can also pair the buds up with another device within the Sport Life app. The buds even know when they’ve come out of your ears – the music app automatically stops, and will resume once the buds are nestled back in your ears again.

Source: The Nation Bangkok October 27, 2017 18:00 UTC