Xiaomi Watch S5 46mm Smart Watch Heart Rate & SpO2 Monitor Digital blue | Android 8.0+ iOS 14.0+. 316L stainless steel, 2500nit AMOLED GNSS for accurate outdoor tracking. 5ATM water resistant

About this product

• ADVANCED HEALTH TRACKING​ – More than a basic activity tracker. 24/7 heart rate, blood oxygen, and stress monitoring with 4-LED + 4-PD sensors and self-developed algorithm 2.0. Tracks sleep stages in detail*—designed for daily wellness awareness, not a medical device.
• ACCURATE PEDOMETER FOR WALKING STEPS AND MILES​ – Dual-frequency five-system GNSS (GPS/Galileo/GLONASS/BeiDou/QZSS) delivers 30% faster positioning and 33% better accuracy vs. previous gen. Track steps, distance, and routes without your phone—ideal for daily walks, hiking, and outdoor runs.
• ULTRA-LONG BATTERY LIFE​ – 815mAh silicon-anode battery: up to 21 days light use, 14 days typical, 9 days AOD. Up to 14 days even with eSIM independent calling—charge less, adventure more.
• VERSATILE SPORTS WATCH WITH 150+ MODES​ – From cycling (phone-as-cyclocomputer, power meter support) to running (form metrics: vertical oscillation, ground contact time), skiing (fall detection), and cheer-gesture capture. A true all-rounder for fitness enthusiasts.
• PREMIUM STAINLESS STEEL & BRIGHT AMOLED​ – 316L stainless steel case, ~46g, 10.99mm thin. 1.48" AMOLED up to 2500 nits (1500 nits HBM) for clear reading under direct sun, with wet-hand touch prevention. 5ATM water resistant for swimming.

Product details from Amazon.com.