Amazfit GTS 4 vs Xiaomi Watch S3
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At a glance
Key specifications and important differences. Full details follow below.
| Feature |  Amazfit GTS 4 |  Xiaomi Watch S3 |
|---|---|---|
| Price | KSh 18,500.00 | KSh 18,000.00 |
| Display | 1.75-inch AMOLED | 1.43-inch AMOLED |
| Battery capacity | 300 mAh rated | 486 mAh lithium-ion polymer |
| Water resistance | 5 ATM | 5 ATM rated for suitable shallow-water activities |
| Processor | Not listed | — |
| RAM | Not listed | — |
| Storage | Not listed | — |
| Operating system | Zepp OS 2.0 | Xiaomi HyperOS |
| Network / cellular | No cellular connection | — |
| Positioning / GNSS | Dual-band, circularly polarized GNSS supporting six satellite systems | BeiDou, GPS, GLONASS, Galileo and QZSS |
| Health & wellness features | 24-hour heart rate, blood oxygen and stress; one-tap measurement; readings are not medical diagnoses | Heart rate, blood oxygen, stress, breathing and activity tracking; wellness data is not intended for medical diagnosis |
Full specifications
2 of 4 products
| Specification | Amazfit GTS 4 | Xiaomi Watch S3 |
|---|---|---|
| Identity & design | ||
| Brand | Amazfit | Xiaomi |
| Model | GTS 4 | Xiaomi Watch S3 (M2323W1) |
| Announced | September 2022 | October 2023 |
| Dimensions | 42.7 × 36.5 × 9.9 mm without heart-rate sensor base | 47 × 47 × 12 mm |
| Weight | 27 g without strap | 44 g (strap excluded) |
| Build materials | Aluminum-alloy middle frame; high-gloss sprayed polycarbonate bottom shell | Aluminum-alloy frame, stainless-steel interchangeable bezel, and Corning glass |
| Wrist size | 140–200 mm | 140–210 mm |
| Strap / band | 20 mm quick-release fluoroelastomer or nylon strap | Fluororubber strap |
| Controls / buttons | Touchscreen and stainless-steel navigation crown | Rotating crown, side control, interchangeable bezel interaction, and touchscreen |
| Display | ||
| Display | 1.75-inch AMOLED | 1.43-inch AMOLED |
| Screen resolution | 390 × 450 pixels, 341 ppi | 466 × 466 pixels (~326 ppi) |
| Display protection | Tempered glass with anti-fingerprint coating | — |
| Display features | Always-on display; 150+ watch faces | Always-on display supported |
| Performance & software | ||
| Processor | Not listed | — |
| CPU | Not listed | — |
| GPU | Not listed | — |
| RAM | Not listed | — |
| Storage | Not listed | — |
| Operating system | Zepp OS 2.0 | Xiaomi HyperOS |
| Connectivity | ||
| Network / cellular | No cellular connection | — |
| SIM / eSIM | No SIM or eSIM | — |
| Wi-Fi | 2.4 GHz Wi‑Fi | — |
| Bluetooth | Bluetooth 5.0 and BLE | Bluetooth 5.2 |
| NFC | NFC not listed | Supported; availability varies by region |
| Positioning / GNSS | Dual-band, circularly polarized GNSS supporting six satellite systems | BeiDou, GPS, GLONASS, Galileo and QZSS |
| Ultra Wideband (UWB) | Not listed | — |
| Satellite features | Not listed | — |
| Audio & communication | ||
| Speaker | Built-in speaker | Built-in speaker |
| Microphone | Built-in microphone | Built-in microphone |
| Calling | Bluetooth calling when paired | Bluetooth calling when paired with a compatible phone |
| Sensors, health & fitness | ||
| Sensors | BioTracker 4.0 PPG, accelerometer, gyroscope, geomagnetic, barometric altimeter and ambient-light sensor | Heart-rate/blood-oxygen sensor, accelerometer, gyroscope, electronic compass, barometer, ambient-light sensor and Hall sensor |
| Health & wellness features | 24-hour heart rate, blood oxygen and stress; one-tap measurement; readings are not medical diagnoses | Heart rate, blood oxygen, stress, breathing and activity tracking; wellness data is not intended for medical diagnosis |
| Sleep tracking | Sleep stages including REM, naps, breathing quality and sleep score | Sleep monitoring supported |
| Sports / workout modes | 154 modes; automatic recognition of eight sports and strength exercises | More than 150 sports modes |
| Training & outdoor features | Route import, real-time navigation, track-run mode and PeakBeats training status | — |
| Safety & emergency features | Not listed | — |
| Diving / depth features | Not rated for diving | — |
| Battery & durability | ||
| Battery capacity | 300 mAh rated | 486 mAh lithium-ion polymer |
| Battery life | Up to 8 days typical, 4 days heavy, 16 days saver; GPS up to 16/28/33 hours by mode | Up to 15 days typical use with Android, 14.5 days with iOS, or 5 days with always-on display |
| Charging | Magnetic charging, approximately 2 hours | 2-pin magnetic charging dock |
| Water resistance | 5 ATM | 5 ATM rated for suitable shallow-water activities |
| Durability / certifications | ISO 22810:2010 5 ATM; suitable for swimming, not hot showers or sauna | — |
| Compatibility | ||
| Phone compatibility | Android 7.0+ or iOS 12.0+ | Android 8.0 or later; iOS 12.0 or later |
| Companion app | Zepp app | Mi Fitness |
| Colors | Infinite Black, Misty White, Autumn Brown, Rosebud Pink | Black or Silver; bezel and strap options vary by market |
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