In depth comparison and review of Apple Watch Series 8 (GPS) and Amazfit GTS 4. 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 | Apple Watch Series 8 (GPS) | Amazfit GTS 4 |
|---|
| Product Type | Smart watch | Smart watch |
|---|---|---|
| Operating System | WatchOS | Zepp OS |
| Supported Host Device OS | iOS 16 or later | iOS 12 or later, Android 7.0 (Nougat) 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: 32 g | - |
| Body Material | Aerospace-grade aluminium alloy | Stainless steel, aluminium alloy frame |
| Protection | Water-resistant, dust-resistant, crack-resistant | Water-resistant |
| Clock Display | Yes | Yes |
| FEATURES | Apple Watch Series 8 (GPS) | Amazfit GTS 4 |
|---|
| Sensors | Accelerometer, ambient light sensor, digital compass, electrical heart sensor, blood oxygen sensor, gyroscope, temperature sensing, optical heart sensor (3d gen), always-on altimeter | Accelerometer, ambient light sensor, geomagnetic sensor, barometric altimeter, gyroscope, BioTracker PPG 4.0 biometric sensor |
|---|---|---|
| Tracking Data | Distance, time, calories burned, activity, sleep activity, heart rate, blood oxygen saturation, sleep stages, menstrual cycle, ECG, ovulation phase, rapid eye movement (REM) | 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 |
| Modes | - | 154 sports modes |
| Goal Setting | Yes | Yes |
| Features | Call handling, Fall detection, Emergency SOS, Family Setup support, International Emergency Calling, Crash Detection, noise monitoring, Compass Waypoint, brightness: 1000 nits, Edge-to-edge display | 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 |
| Notifications | Calendar, SMS, Email, high and low heart rate, irregular rhythm, cardio fitness | SMS, incoming calls, applications, high and low heart rate, low blood-oxygen, high stress level |
| 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 | Siri | Alexa built-in |
| IoT Voice Controlled | Direct | Direct |
| CONNECTIVITY | Apple Watch Series 8 (GPS) | Amazfit GTS 4 |
|---|
| Wireless Interface | IEEE 802.11b/g/n, Bluetooth 5.0 | Wi-Fi, Bluetooth 5.0 |
|---|
| DISPLAY | Apple Watch Series 8 (GPS) | Amazfit GTS 4 |
|---|
| Type | Retina LTPO OLED - colour | AMOLED - colour |
|---|---|---|
| Resolution | 352 x 430 pixels | 390 x 450 pixels |
| Screen Size | - | 1.75" |
| Pixel Density | - | 341 ppi |
| Screen Protection | Ion-X glass | Tempered glass |
| Always On Display (AOD) | Yes | Yes |
| INPUT DEVICE | Apple Watch Series 8 (GPS) | Amazfit GTS 4 |
|---|
| Type | Touch sensitive screen | Touch sensitive screen, push button |
|---|
| CASE | Apple Watch Series 8 (GPS) | Amazfit GTS 4 |
|---|
| Case Size | 41 mm | - |
|---|---|---|
| Case Shape | Rectangular | Rectangular |
| Case Back | Sapphire crystal and ceramic back | - |
| Case Details | Midnight aluminium | Starlight aluminium | Red aluminium | Silver aluminium | Aluminium alloy |
| Crown Type | Digital with haptic feedback | - |
| BAND | Apple Watch Series 8 (GPS) | Amazfit GTS 4 |
|---|
| Band Type | Sport band | Strap |
|---|---|---|
| Band Size | Regular | - |
| Band Width | - | 20 mm |
| Fits Wrist with Circumference | 130-200 mm | 140-200 mm |
| Changeable | Yes | Yes |
| Clasp Type | Pin-and-tuck | Pin buckle |
| Band Material | Fluoroelastomer | Fluoroelastomer |
| Band Colour | Midnight | Starlight | Red | White | Infinite black | Misty white | Rosebud pink |
| STORAGE | Apple Watch Series 8 (GPS) | Amazfit GTS 4 |
|---|
| Storage Capacity | 32 GB | - |
|---|---|---|
| User Memory | - | 2.3 GB |
| CPU | Apple Watch Series 8 (GPS) | Amazfit GTS 4 |
|---|
| Manufacturer | Apple | - |
|---|---|---|
| CPU Type | S8 SiP | - |
| Features | W3 Apple wireless chip, U1 chip | - |
| BATTERY | Apple Watch Series 8 (GPS) | Amazfit GTS 4 |
|---|
| 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 |
| Rechargeable Battery | Yes | Yes |
| Recharge Time | - | 2 hour(s) |
| Wireless Charging | Yes | - |
| MISCELLANEOUS | Apple Watch Series 8 (GPS) | Amazfit GTS 4 |
|---|
| Included Accessories | Magnetic fast charger to USB-C cable (1 m) | Magnetic charging cable |
|---|---|---|
| Preloaded Software | Apple Pay, GymKit | To Do List, Games, Stopwatch, Calendar, World clock, Alarm Clock, Reminders, Timer, Compass, Countdown timer |
| Compliant Standards | IP6X | - |
| SAR Value | 0.17 W/kg (head), 0.28 W/kg (limb) | - |
| Max Depth of Water Resistance | 50 m | 50 m |
| Max Operating Temperature | - | 45 °C |
| Min Operating Temperature | - | 0 °C |
| Manufacturer Model Number | A2770 | - |
| Warranty | 1-year warranty | 1-year warranty |
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