The Huawei Watch Fit 4 Pro comes with significant upgrades in design, sports, and health features, combining a lightweight rectangular case with premium materials like titanium and sapphire. Key Specifications: 🌟 Design and Display Display: 1.82-inch AMOLED, 480 × 408 pixels. Brightness: A massive leap up to 3000 nits maximum, making reading under direct sunlight excellent. Materials: Titanium alloy bezel, scratch-resistant sapphire crystal screen, and a high-strength (550 MPa) aluminum body. Dimensions and Weight: Ultra-slim 9.3mm thickness, and a light weight of only 30.4 grams (without strap). 🏃‍ Sports and Navigation Features Navigation (GPS): Dual-band GPS support with HUAWEI Sunflower smart antenna system for high-accuracy tracking during runs or cycling. Water and Diving Resistance: 5 ATM water resistance, supports free diving up to 40 meters (certified EN13319) and includes a depth sensor. Golf Enthusiasts: Features 3D maps for over 15,000 golf courses worldwide with intelligent swing analysis. Activities: Supports over 100 different sports modes (e.g., running, skiing, rowing, water sports). Advanced Health Features ECG: Certified and enhanced app for accurate ECG signal collection and analysis. Heart Health: Atrial fibrillation and pulse wave analysis for early detection of AFib. Other Sensors: Blood oxygen (SpO_2) measurement, stress and mood tracking, skin temperature monitoring, and detailed sleep quality tracking with sleep breathing alerts. 🔋 Battery and Charging Battery Life: Lasts up to 10 days of maximum usage, and 7 days of typical usage. Charging: Supports fast magnetic wireless charging (get a full day's power in just 10 minutes of charging, and reach 100% in 60 minutes). System and Compatibility Operating System: Runs on HarmonyOS 5.1. Compatibility: Fully compatible with Android phones (8.0 or later) and iOS phones (13.0 or later) via the Huawei Health app. Condition: Used