The Samsung Gear S3 Frontier is a state-of-the-art, modern smartwatch, beneath a classic exterior. With a built-in altimeter, barometer and speedometer, plus a battery life of days, it is designed with explorers, hikers and fitness addicts in mind. The Gear App Store offers a wide variety of watch faces to switch between, and numerous straps are available. With the turn of a bezel, wearers can switch between apps, respond to calls and even reply to texts. Plus, GPS functionality steps things up a notch, with everything from optimised hiking routes to tracking running or golf progress.