XIAOMI Watch S4

The Xiaomi Watch S4 is a 41mm smartwatch with a bright 1.32-inch AMOLED display and a rotating crown for easy navigation. It offers advanced health tracking (heart rate, blood oxygen, sleep, stress), over 150 sports modes, and features like fall detection and GPS. The watch includes a long-lasting battery (up to 8 days) and supports Bluetooth calling and NFC payments, depending on region. 

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Display 

• Type: AMOLED
• Size: 1.32-inch or 1.43-inch (depending on the model)
• Brightness: Up to 1500 nits (peak brightness up to 2200 nits)
• Resolution:

466×466466 cross 466

466×466

• pixels 

GSMArena.com

https://www.gsmarena.com

Xiaomi Watch S4 - Full phone specifications - GSMArena.com

1.43" 466x466 pixels. NO. 486mAh. Released 2024, October 29 44.5g, 12mm thickness HyperOS 2 No card slot.

Health and fitness 

• Health tracking: Heart rate, blood oxygen, sleep, and stress monitoring
• Sports modes: Over 150 different modes to choose from
• Breathing exercises: Includes exercises for relaxation, concentration, and sleep
• Other features: Fall detection, GPS, and a compass 

Xiaomi

https://www.mi.com

Xiaomi Watch S4 - Xiaomi UK

Includes an exclusive compass on the watch face, allowing you to check your orientation anytime. ... Featuring a stainless-steel wood-grain laser-engraved watch...

Xiaomi

https://www.mi.com

Xiaomi Watch S4 41mm - Xiaomi Malaysia

* All-day blood oxygen saturation monitoring 21 * All-day stress monitoring 21 * Breathing exercises.

Live Science

https://www.livescience.com

Xiaomi Watch S4 smartwatch review: Affordable elegance - Live Science

1 May 2025 — However, this also means that some nuances and complex insights may be lost. For example, the sleep tracking is limited to "deep" and "light" phases,

Battery and charging 

• Battery life: Up to 8 days on a single charge (normal usage) 

• Fast charging: 5 minutes of fast charging provides 2 days of usage 

Connectivity and features 

• Bluetooth: Supports Bluetooth calling, but must be connected to the smartphone
• NFC: Supports NFC payments, though availability varies by region
• GPS: Dual-frequency GPS for location tracking
• Water resistance: 5ATM water resistance for shallow water activities
• Operating System: Xiaomi HyperOS
• Compatibility: Supports smartphones running Android 8.0 and above or iOS 14.0 and above