Xiaomi Watch S4 (M2425W1) — Smartwatch with AMOLED Display and Long Battery Life

The Xiaomi Watch S4 (model M2425W1) is a modern and feature-rich smartwatch that combines a bright AMOLED display, advanced health and fitness tracking, premium build quality, and up to 15 days of battery life on a single charge. It is perfect for an active lifestyle, sports activities, and everyday use.

 Key Specifications

 Display

• Screen: 1.43″ AMOLED with vivid colors and excellent readability.

• Resolution: 466×466 pixels (~326 ppi).

• Refresh Rate: up to 60 Hz.

• Brightness: up to 1500 nits (HBM), peak brightness up to 2200 nits — easy to use even in bright sunlight.

• Water Resistance: 5 ATM — suitable for swimming and water exposure up to ~50 m.

 Health & Sports

• Heart rate monitoring with blood oxygen (SpO₂) measurement.

• Sleep, stress, and activity tracking with calorie calculation.

• Over 150 sports modes including running, cycling, yoga, swimming, and more.

• Built-in GPS with support for GPS, GLONASS, Galileo, BeiDou, and QZSS for accurate workout tracking.

 Battery Life

• Battery: 486 mAh — provides up to 15 days of typical usage.

• Fast Charging: 5 minutes of charging delivers around 2 days of battery life.

 Connectivity & Compatibility

• Bluetooth 5.3: stable smartphone connection.

• NFC: supports contactless features (region dependent).

• Compatibility: works with Android and iOS (supports HyperOS and companion apps).

 Design & Comfort

• Body: Aluminum alloy — lightweight and durable.

• Dimensions: approx. 47.3 × 47.3 × 12.0 mm; weight approx. 44.5 g — comfortable on the wrist.

• Straps: Adjustable and suitable for most wrist sizes.

 Smart Features

• Notifications for calls, messages, and apps.

• Smartphone music control.

• Customizable watch faces.