Smart watches are designed by multiple companies such as Apple watch, Android wear and Pebble.
The smart watches functions as any normal watch i.e time and date telling; the functions of the models are able to search the internet via voice,monitoring heart rate with BPM (beats per minute) as the user exercises,purchase items at retail stores through mobile touch payment.
Smartwatches are designed with an operating system that varies in accordance of the manufacturing company.
Samsung: Tizen OS
Apple: Watch OS 2
Pebble: Pebble OS
Smartwatches are all developed for internet connection through three main wireless communication systems: Blue tooth, WiFi and Near Field Communications.The internal hardware in smartwatches are equipped with rechargeable batteries, touch screen and graphical display.