Connection	WLAN 2.4GHz, Bluetooth 5.0 & BLE
Display	- Material : AMOLED - Size : 1.75" inches - Resolution : 390x450 - PPI : 341 - Touchscreen : Tempered glass anti-fingerprint coating
Design	- Dimensions (without heart rate base) : 42.7x36.5x9.9mm - Weight (with strap) : 27g - Body Material : Aluminum alloy middle frame high-gloss sprayed PC bottom shell - Buttons : 1 - Water-resistance Grade : 5 ATM
Battery	- Battery Capacity : 300 mAh (rated value） - Charging Method : Magnetic charging - Theoretical Charging Duration : Approx. 2 hours - Typical Usage Scenario Battery Life : Up to 8 days - Battery Saver Mode Battery Life : Up to 16 days - Clock Mode Battery Life : Up to 30 days - Heavy Usage Scenario Battery Life : Up to 4 days - Accuracy GPS Mode : Up to 16 hours - Balanced GPS Mode : Up to 28 hours - Power Saving GPS Mode : Up to 33 hours
Sensor	- Health : BioTracker™ 4.0 PPG biometric sensor (supports blood-oxygen, 4PD + 2LED) - Movement : Acceleration sensor, Gyroscope sensor, Geomagnetic sensor, Barometric altimeter Ambient light sensor altimeter, Ambient light sensor - Positioning : Dual-band & 6 satellite positioning systems
Strap	- Material : Fluoroelastomer / Nylon Quick release - Width : 20mm - Min. & Max.Wrist Dimensions : 140mm-200mm - Buckle : Classic pin buckle
Other	Speaker : Support Microphone : Support Linear Motor : Support
Packing List	Smartwatch (including standard strap), magnetic charging cable, instruction manual
Supported Devices	Android 7.0 and above, iOS 12.0 and above
Application	Zepp App
Sports Features	- Sports Modes : 154 - Smart Recognition of : 25 strength training movements 8 sports movements - Template Creation : Interval training (via the watch) - Advanced Running Support : Track Run mode, Smart trajectory correction, Virtual pacer Workout Status : PeakBeats™
Health Features	- 24H Monitoring : Heart rate, Blood-oxygen saturation Stress level - Manual Measurement : Heart rate, Blood-oxygen saturation, Stress level, One-tap measurement - Sleep Quality Monitoring : Sleep stages (including REM), Daytime naps, Sleep schedule, Sleep breathing quality, Sleep score - Health Assessment System : PAI - Breathing Exercise : Support - Menstrual Cycle Tracking : Support - Health reminders : Abnormally high & low heart rate, Low blood-oxygen, High stress level, Prompts to perform Breathing Exercise

Details

Strength Training Exercises

Dozens of strength training movements can be automatically recognized, and the fitness 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.

Live Sports Data Broadcast

Instead of raising your wrist to check your data during exercise, 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.

Note:*Live Sports Data Broadcast supports English and Chinese voice broadcasts and will be available via OTA update.

Route & Movement Tracking

Import a route file to the watch from the Zepp App and navigate your way along it in real-time.

When following your own unique path, track your real-time movement directly on the display.

Direct Return Navigation enables you to see the shortest straight line back to the starting point of your journey when you're in a hurry.

The algorithm can automatically correct trajectory and distance to match your selected lane if positioning signals momentarily become weak.

Note:* Route import will be available via OTA update.


Advanced Fitness Support Choose from a huge selection of over 150 sports modes to challenge yourself, and jump into action quickly with smart recognition of 8 Sports. You can create interval training templates for 10 sports, directly on the watch. Templates can be divided into stages, which can be looped up to 30 times. When you're done working out, you can review your performance with PeakBeats, and sync workout data to Strava to show your friends what a true frontrunner looks like.	Store Cards for Simplified Shopping Always forgetting your store card? No problem. Easily add membership and club card codes from your favorite stores to the Amazfit GTS 4, via the Zepp App. Simply show the code on your watch display when it's time to scan, and carry on with your shopping trip. Note:Due to the device's storage limit, only a maximum of 20 membership cards can be added to the same account. Supported codes include Code 128, Code 39, and QR codes; support for UPC A, EAN 13, and EAN 8 will be added via OTA update.	Online & Offline Voice Assistants Online: Easily set an alarm, get a translation and more with Alexa. Offline: Engage a sports mode, open a health feature and more via voice command, even when you don't have an internet connection. Tell the watch to "Up Your Game", for a built-in surprise.


Powerful & Accurate Health Technology The watch's new BioTracker 4.0 PPG biometric sensor is enhanced to 2LED, enabling collection of 33% more data than the previous generation, and with improved accuracy. So You will enjoy highly accurate 24-hour monitoring of heart rate, blood-oxygen saturation and stress levels. The watch can also detect your breathing rate and is able to quickly measure these four important health metrics in one easy tap.	Sleep Quality Tracking & Morning Updates Amazfit GTS 4 provides In-depth monitoring of sleep quality & daytime naps, light, deep & REM sleep stages, and sleep breathing quality. Along with being able to easily check your sleep data directly on the watch when you wake up, the watch introduces a new Morning Update function. To help prepare you for the day ahead, these updates include a clear summary of information like the weather, your health data, calendar events and more - you can even customize which content is included in your update.	Bluetooth Phone Calls The Amazfit GTS 4 includes a microphone and speaker to let you answer calls on your watch when it's inconvenient to pick up your mobile phone. Connect the watch to your mobile phone via Bluetooth to ensure that you no longer miss important calls.


Music Storage & Playback For a workout motivation boost only your favorite song can deliver, store music on the watch for playback through the built-in speaker or your Bluetooth headphones. Alternatively, use the watch to control the music on your phone via Bluetooth connection.	Zepp OS 2.0 & Mini Apps The powerful and easy-to-use Zepp OS has been upgraded. Along with super-smooth interactions and a smartwatch-tailored UI that's designed to consume less power, you can now choose from two app menu layouts, and two color tones, and switch between styles at will.	150+ Watch Faces 150+ Watch Faces with Matching Always-on Displays. including: 30 Animated Watch Faces 4 Interactive Watch Faces Upload your own photos to the watch face

Details

Advanced Fitness Support

Store Cards for Simplified Shopping

Online & Offline Voice Assistants

Powerful & Accurate Health Technology

Sleep Quality Tracking & Morning Updates

Bluetooth Phone Calls

Music Storage & Playback

Zepp OS 2.0 & Mini Apps

150+ Watch Faces