The Sony HDR-AS30V is a 1080/60p action video camera with Wi-Fi®, GPS and NFC and is waterproof up to 16 feet amongst other features.
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Sony AS30V reviews
You'll need to buy accessories such as a waterproof housing. Though YI used Gorilla Glass, the touchscreen is not shatterproof. The microSD card slot is a little hard to access. Parts of the English app are still in Chinese.
The YI 4K Action Camera is a remarkable camera for the money, offering great features and performance in an easy-to-use package. It has long battery life for its size. A touchscreen gives you full control of the camera or you can use the high-speed Wi-Fi to connect to your phone and control via an app. App handles shooting, editing and sharing. YI continues to add features through firmware updates.