Best Smartwatch for iPhone X, iPhone 8, 8 Plus, iPhone 7, 7 Plus, 6, 6s Plus, 5, 5s, and iPhone SE
Apple Watch Series 3 – GPS+Cellular
The Apple Watch Series 3 embodies the third-generation model of the Apple Watch with a dual–core S3 processor and WatchOS4 which can be your best bet. The watch has a built-in GPS and electronic SIM which can help you stay connected while keeping your phone away. It is water-resistant up to 50m and can be used in shallow water activities like swimming in a pool or ocean. It requires an iPhone 6 or later with iOS 11 or later. It can function as a heart-rate sensor, altimeter, accelerometer and gyroscope.