Apple Watch Series 4 (40mm)

1.78 inch/ 1.57 inch OLED display, touchscreen with 1 physical button and digital crown with hepatic feedback.
Clock features include time/date, alarm, timer and stopwatch.
Customize the watch face from available watch faces or download watch faces from the pool of many watch faces available on the app store.
Find my phone, control music on Smartphone and remote camera control.
Keeps you connected to all that matters to you such as emails, SMS and calls, so you never get to miss important updates.
Rated 5ATM (swim-proof).
22mm(40mm) and 24mm(44mm) interchangeable elastomer straps.
Compatible with iOS 12.0+ devices.
Inbuilt microphone supports Apple Siri and loudspeaker(50% louder) that lets you play media files anywhere.
16GB (GPS + Cellular)/(GPS ONLY) onboard storage capacity lets you take your music with you.
Make payments on the go with Apple Pay.
GPS + Cellular model is a standalone smartwatch that allow you call, text and stream Apple music without needing your phone.