Casio Pro Trek Smart Outdoor Smartwatch WSD-F30 or just Casio WSD-F30, in short, is an outdoor smartwatch running on Wear OS. Wear OS is Google’s Android operating system designed for smartwatches and other wearables.
Officially launched on the 22nd October 2013, the Sony SmartWatch 2 (Sony SW2) is available in two versions. Sony SmartWatch 2 with black metallic strap is retailing for S$338 while the other with black silicone strap is retailing for S$288.
Sony also sells straps in black or brown leather and silicon in various colors separately. It uses the standard 24mm strap, so you can use any 24mm watch strap on it.