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The simple Doppel wearable is built to help you relax
There are wearables, like the Apple Watch and Google's Wear OS devices, that do everything. And then there are wearables that go in the opposite direction, going as minimal as possible. Doppel falls into the latter category -- it looks like a small wristwatch, but instead of telling the time or tracking your steps or sending you notifications, its whole purpose is to calm you down. The wearable is mean to be worn on the inside of your wrist and sends a slight vibration in the same rhythm as a heartbeat. According to Doppel, a vibration rate that's slower than your resting heart rate is meant to help relax you, while one that exceeds your heart rate is meant to energize and focus you.
