Choose from a huge selection of over 150 sports modes, including Walking, Running, Cycling, Yoga, and a lot more. And when it's time for that well-earned beach vacation, the watch can be used to track your swimming data and endure the equivalent of up to 50 meters' water pressure.

Get live notifications broadcast through the watch's speaker or your Bluetooth headphones for sports data like heart rate and hydration reminders, distance covered, and more.

For a workout motivation boost only your favorite song can deliver, store music on the watch for direct playback - or even effortlessly control your phone's music via Bluetooth.

As soon as you begin one of these eight sports, the watch will sense your movement and automatically suggest that you open the corresponding sport mode.

Dozens of strength training movements5 can be automatically recognized, many of which have adjustable variations in the Zepp App.​ The watch can count your reps and track your rest time between sets. ​After your workout, the Zepp App will show you the muscle group you exercised and how long you exercised it for, to help keep your training efficient.​

The Amazfit GTS 4 uses industry-leading dual-band circularly-polarized GPS antenna technology - similar to that used in the aircraft and automotive fields - so you can enjoy stronger positioning that's 99% as accurate as top handheld GPS locators. ​Whether you're hiking a tree-covered trail or cycling to work through a congested city center, enjoy positioning that's unimpeded by environmental and multi-path interference.​

When you're done working out, the PeakBeats™ workout status algorithm will show you data including maximum oxygen uptake (VO2 Max), full recovery time, training load and training effect, to help you understand factors that can affect your recovery, progress and exercise capacity.

Show your friends what a true frontrunner looks like. Sync data from your running and cycling workouts to Strava and, thanks to a new partnership between Amazfit and adidas Runtastic, to the adidas Running app.

It's time to see the bigger picture of your health and fitness. Immerse yourself in the ultra-large 1.75" AMOLED display, and view the data that matters to your wellness journey in pristine HD clarity.

The Amazfit GTS 4 debuts the new BioTracker™ 4.0 PPG biometric sensor. Enhanced to 2LED, the sensor collects 33% more data and is more accurate than the previous generation, thanks to the ultra-thin 0.4mm glass base. This sensor, combined with the watch's upgraded heart rate tracking algorithm, greatly reduces potential signal interference caused by arm movement during exercise, for heart rate tracking that almost reaches the level of heart rate belts. ​