Sony SmartWatch

They connect to Android smartphones and can display information such as Twitter feeds and SMS messages, among other things.

The original Sony SmartWatch, model MN2SW, came with a flexible silicone wristband with multiple colors available.

It was rated IP57 so it could be submersed in water up to a meter for 30 minutes and was dust resistant.

[7] As noted by ABI Research, "The SmartWatch 3 has many new features such as waterproof (IP68 rated, not just resistant), improved styling, transition to Android Wear, and introduction of a new wearable platform from Broadcom.

... [It's] based on the Broadcom system-on-chip (SoC) platform which includes a 1.2GHz Quad-core ARM Cortex A7 processor (BCM23550), an improved GPS and ambient light sensor processing SoC (BCM47531) capable of simultaneously tracking five satellite systems (GPS, GLONASS, QZSS, SBAS, and BeiDou), the now popular Wi-Fi 802.11n/BT/NFC/FM quad-combo connectivity chip (BCM43341), and a highly integrated power management IC (BCM59054).