Xiaomi Watch S4 vs Xiaomi Watch S5
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At a glance
Key specifications and important differences. Full details follow below.
| Feature |  Xiaomi Watch S4 |  Xiaomi Watch S5 |
|---|---|---|
| Price | KSh 20,000.00 | KSh 25,000.00 |
| Display | 1.43-inch AMOLED, 60 Hz | 1.48-inch AMOLED |
| Battery capacity | 486 mAh | 815 mAh lithium-ion polymer battery |
| Water resistance | 5 ATM rated for suitable shallow-water activities | 5 ATM |
| Operating system | Xiaomi HyperOS 2 | Xiaomi HyperOS 3 |
| Network / cellular | — | No cellular connectivity |
| Positioning / GNSS | Built-in GPS, Galileo, GLONASS, BeiDou and QZSS | Built-in dual-band five-system GNSS: GPS, Galileo, GLONASS, BeiDou and QZSS |
| Health & wellness features | Heart rate, blood oxygen, stress, breathing and activity tracking; wellness data is not intended for medical diagnosis | Heart-rate, blood-oxygen and stress monitoring; one-tap health check |
Full specifications
2 of 4 products
| Specification | Xiaomi Watch S4 | Xiaomi Watch S5 |
|---|---|---|
| Identity & design | ||
| Brand | Xiaomi | Xiaomi |
| Model | Xiaomi Watch S4 | Xiaomi Watch S5 46mm |
| Announced | March 2025 (global model) | 28 May 2026 |
| Dimensions | 47.3 × 47.3 × 12.0 mm (strap and protrusions excluded) | 46.00 × 46.00 × 10.99 mm, excluding strap and protrusions |
| Weight | Approximately 44.5 g (strap excluded) | Approximately 46 g without in-box strap |
| Build materials | Aluminum-alloy frame with interchangeable bezel | 316L stainless-steel watch body; stainless-steel, ceramic or forged-carbon bezel; glass cover |
| Wrist size | Black/Silver: approximately 140–210 mm; Rainbow: approximately 135–210 mm | Black/Silver: approximately 140–210 mm; Ceramic Blue/Jungle Green: approximately 135–205 mm |
| Strap / band | Fluororubber; Rainbow configuration also includes nylon strap | Black/Silver: fluororubber; Ceramic Blue: genuine leather; Jungle Green: fluororubber plus nylon braided strap |
| Controls / buttons | Rotating crown, side control, interchangeable bezel interaction, and touchscreen | Stainless-steel rotating crown; upper and lower buttons; touchscreen |
| Display | ||
| Display | 1.43-inch AMOLED, 60 Hz | 1.48-inch AMOLED |
| Screen resolution | 466 × 466 pixels (~326 ppi) | 480 × 480 pixels, 459 ppi |
| Display protection | — | Drop-resistant glass |
| Display features | Always-on display; up to 1,500 nits HBM | 1,500 nits HBM brightness; up to 2,500 nits peak brightness; wet-touch protection; ultra-narrow 2.6 mm bezel |
| Performance & software | ||
| Operating system | Xiaomi HyperOS 2 | Xiaomi HyperOS 3 |
| Connectivity | ||
| Network / cellular | — | No cellular connectivity |
| Wi-Fi | — | Not supported |
| Bluetooth | Bluetooth 5.3 | Dual-mode Bluetooth BLE/BT 5.4 |
| NFC | Supported; availability varies by region | Supported; payments availability varies by region |
| Positioning / GNSS | Built-in GPS, Galileo, GLONASS, BeiDou and QZSS | Built-in dual-band five-system GNSS: GPS, Galileo, GLONASS, BeiDou and QZSS |
| Audio & communication | ||
| Speaker | Built-in speaker | Supported |
| Microphone | Two built-in microphones | Supported |
| Calling | Bluetooth calling when paired with a compatible phone; third-party app voice calls not supported | — |
| Sensors, health & fitness | ||
| Sensors | Heart-rate/blood-oxygen sensor, accelerometer, gyroscope, ambient-light sensor, electronic compass, barometer and Hall sensor | Heart-rate sensor with blood-oxygen sensor; accelerometer; gyroscope; ambient-light sensor; electronic compass; barometer |
| Health & wellness features | Heart rate, blood oxygen, stress, breathing and activity tracking; wellness data is not intended for medical diagnosis | Heart-rate, blood-oxygen and stress monitoring; one-tap health check |
| Sleep tracking | Sleep monitoring supported | Enhanced sleep monitoring |
| Sports / workout modes | More than 150 sports modes | 150+ sports modes |
| Training & outdoor features | — | Advanced outdoor-sports tracking; upgraded cycling mode; dual-band GNSS; Bluetooth power-meter connectivity |
| Battery & durability | ||
| Battery capacity | 486 mAh | 815 mAh lithium-ion polymer battery |
| Battery life | Up to 15 days typical use; actual life varies by settings and use | Light use: up to 21 days; normal use: up to 14 days; AOD normal use: up to 9 days |
| Charging | 2-pin magnetic charging dock | 2-pin magnetic charging dock |
| Water resistance | 5 ATM rated for suitable shallow-water activities | 5 ATM |
| Compatibility | ||
| Phone compatibility | Android 8.0 or later; iOS 14.0 or later | Android 8.0 or later; iOS 14.0 or later |
| Companion app | Mi Fitness | Mi Fitness |
| Colors | Black, Silver, or Rainbow depending on configuration | Black; Silver; Ceramic Blue; Jungle Green |
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