In depth comparison and review of Amazfit GTS 4 and Apple Watch Series 9 (GPS). Compare sizes, functions, displays, batteries and other important specifications and features to easily choose the right smartwatch for you. Our goal is to help you uncover differences between the products and find the watch that will best fit your needs.
| GENERAL | Amazfit GTS 4 | Apple Watch Series 9 (GPS) |
|---|
| Product Type | Smart watch | Smart watch |
|---|---|---|
| Operating System | Zepp OS | WatchOS 10 |
| Supported Host Device OS | iOS 12 or later, Android 7.0 (Nougat) or later | iOS 17 or later |
| Activity/Sport | Multisport | - |
| Wearing Style | Watch style | Watch style |
| Audio Input | Microphone | Microphone |
| Audio Output | Speaker | Speaker |
| Width | 36.5 mm | - |
| Height | 42.7 mm | - |
| Depth | 9.9 mm | - |
| Weight | 27 g | - |
| Body Details | - | Case only: 31.9 g |
| Body Material | Stainless steel, aluminium alloy frame | 100% recycled aluminium |
| Protection | Water-resistant | Water-resistant, dust-resistant, crack-resistant |
| Clock Display | Yes | Yes |
| FEATURES | Amazfit GTS 4 | Apple Watch Series 9 (GPS) |
|---|
| Sensors | Accelerometer, ambient light sensor, geomagnetic sensor, barometric altimeter, gyroscope, BioTracker PPG 4.0 biometric sensor | Digital compass, electrical heart sensor, blood oxygen sensor, optical heart sensor (3d gen), always-on altimeter, temperature sensor, high-g accelerometer, gyroscope with high dynamic range |
|---|---|---|
| Tracking Data | Time, calories burned, activity, sleep activity, heart rate, steps taken, blood oxygen saturation, sleep stages, stress level, menstrual cycle, personal activity intelligence (PAI), recovery time, training load, sleep quality score, nap, sleep breathing quality | Distance, time, calories burned, activity, sleep activity, heart rate, blood oxygen saturation, sleep stages, menstrual cycle, ECG, ovulation phase, mental wellbeing |
| Modes | 154 sports modes | - |
| Goal Setting | Yes | Yes |
| Features | Strength training guidance, camera remote control, find phone function, answering a call, VO2 max, making a call, Find my Device, breathing training function, store & play music, sunrise/sunset times, auto pause, auto lap, realtime location tracking, music playback control, weather information, instant message reply, PeakBeats workout status algorithm, ExerSense algorithm, Dual-band navigation, linear motor, Virtual Pacer, track run mode, smart trajectory correction, route file import | Fall detection, Emergency SOS, brightness: 2000 nits, Family Setup support, International Emergency Calling, Crash Detection, noise monitoring, Compass Waypoint, fast charge, precision finding for iPhone, elevation view |
| Notifications | SMS, incoming calls, applications, high and low heart rate, low blood-oxygen, high stress level | Calendar, SMS, Email, applications, high and low heart rate, irregular rhythm, cardio fitness |
| Vibrating Alert | Yes | Yes |
| Feedback Type | Audio alert, vibration alert, visual interface | Audio alert, vibration alert, visual interface |
| Navigation (GPS) | - | GPS/GLONASS/Galileo/BeiDou/QZSS receiver |
| Payment Technology | - | Apple Pay |
| Internet of Things (IoT) Compatible | Yes | Yes |
| IoT Intelligent Assistant | Alexa built-in | Siri |
| IoT Voice Controlled | Direct | Direct |
| CONNECTIVITY | Amazfit GTS 4 | Apple Watch Series 9 (GPS) |
|---|
| Wireless Interface | Wi-Fi, Bluetooth 5.0 | IEEE 802.11b/g/n, Ultra-Wideband (UWB), Bluetooth 5.3 |
|---|
| DISPLAY | Amazfit GTS 4 | Apple Watch Series 9 (GPS) |
|---|
| Type | AMOLED - colour | Retina LTPO OLED - colour |
|---|---|---|
| Resolution | 390 x 450 pixels | 352 x 430 pixels |
| Screen Size | 1.75" | - |
| Pixel Density | 341 ppi | - |
| Screen Protection | Tempered glass | Ion-X glass |
| Always On Display (AOD) | Yes | Yes |
| INPUT DEVICE | Amazfit GTS 4 | Apple Watch Series 9 (GPS) |
|---|
| Type | Touch sensitive screen, push button | Touch sensitive screen, side button, double tap gesture |
|---|
| CASE | Amazfit GTS 4 | Apple Watch Series 9 (GPS) |
|---|
| Case Size | - | 41 mm |
|---|---|---|
| Case Shape | Rectangular | Rectangular |
| Case Back | - | Sapphire crystal and ceramic back |
| Case Details | Aluminium alloy | Starlight aluminium | Red aluminium | Midnight aluminium | Pink aluminum | Silver aluminium |
| Crown Type | - | Digital with haptic feedback |
| BAND | Amazfit GTS 4 | Apple Watch Series 9 (GPS) |
|---|
| Band Type | Strap | Sport band |
|---|---|---|
| Band Size | - | M/L |
| Band Width | 20 mm | - |
| Fits Wrist with Circumference | 140-200 mm | 150-200 mm |
| Changeable | Yes | Yes |
| Clasp Type | Pin buckle | Pin-and-tuck |
| Band Material | Fluoroelastomer | Fluoroelastomer |
| Band Colour | Infinite black | Misty white | Rosebud pink | Starlight | Red | Midnight | Light pink | Storm blue | Winter blue |
| STORAGE | Amazfit GTS 4 | Apple Watch Series 9 (GPS) |
|---|
| Storage Capacity | - | 64 GB |
|---|---|---|
| User Memory | 2.3 GB | - |
| CPU | Amazfit GTS 4 | Apple Watch Series 9 (GPS) |
|---|
| Manufacturer | - | Apple |
|---|---|---|
| CPU Type | - | S9 SiP |
| Features | - | W3 Apple wireless chip, second-generation Ultra Wideband chip, 4-core Neural Engine |
| BATTERY | Amazfit GTS 4 | Apple Watch Series 9 (GPS) |
|---|
| Technology | - | Lithium Ion |
|---|---|---|
| Capacity | 300 mAh | - |
| Battery Life | - | 18 hours |
| Battery Life Details | Typical usage - up to 8 days Battery Saver Watch Mode - up to 16 days Clock - up to 30 days Heavy usage - up to 4 days Accurate mode (with GPS) - up to 16 hours GPS mode - up to 28 hours Power saving mode (with GPS) - up to 33 hours |
Typical usage - up to 18 hour(s) Low power mode - up to 36 hour(s) |
| Rechargeable Battery | Yes | Yes |
| Recharge Time | 2 hour(s) | - |
| Wireless Charging | - | Yes |
| MISCELLANEOUS | Amazfit GTS 4 | Apple Watch Series 9 (GPS) |
|---|
| Included Accessories | Magnetic charging cable | Magnetic fast charger to USB-C cable (1 m) |
|---|---|---|
| Preloaded Software | To Do List, Games, Stopwatch, Calendar, World clock, Alarm Clock, Reminders, Timer, Compass, Countdown timer | GymKit |
| Compliant Standards | - | IP6X, BFR-free, PVC-free, Beryllium-free, Mercury-free, Arsenic-free |
| Specific Absorption Rate (SAR) | - | 0.12 W/kg (head) 0.29 W/kg (limb) |
| Carbon Footprint | - | 0 kg carbon emissions |
| Max Depth of Water Resistance | 50 m | 50 m |
| Max Operating Temperature | 45 °C | - |
| Min Operating Temperature | 0 °C | - |
| Manufacturer Model Number | - | A2978 |
| Warranty | 1-year warranty | - |
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