Xiaomi Watch S4 Black-Smartwatch, Fitness Tracker,1.43 Inch AMOLED, 2200 Nits, 15 Day Battery, 5ATM Waterproof, Heart Rate & SPO₂ Sensor, 150+ Sports Modes, Dual-Band GPS, NFC, Android & iOS

Price: $184.57
(as of Feb 06, 2026 05:09:32 UTC – Details)

From the manufacturer

1 Premium performance

2 1.43″AMOLED

3 15 days battery Life

4 Timeless design

5 Stainless steel frame

1 One-tap health insights

2 Breathing exercise

3 Blood oxygen monitoring

4 All-day stress monitoring

5 Advanced Sleep monitoring

1 150+ sports modes

2 On-wrist running courses

3 Skiing Mode Pro

4 Fall Detection Alert

5 Health Sync

1 Xiaomi HyperOS 2

2 Xiaomi Smart Hub

3 New quick gestures

[1.43″ AMOLED display with exceptional brightness] Featuring a 1.43-inch AMOLED large display that delivers clear and smooth visuals, as well as an astounding HBM brightness of up to 1500nits.
[Up to 15 days of battery life]A long battery life of 15 days* ensures more than 2 weeks of use, so there’s no need to bring your watch charger for short-term trips. 5 minutes of fast charging delivers 2 days of usage.
[Advanced Health Monitoring]Monitors heart rate, stress, blood oxygen, and sleep. A micro-physical examination report is generated in around 60 seconds.High-precision sensing module 24/7 health protection.
[150+ sports modes.Ideal for all sorts of activities]L1+L5 dual-frequency GNSS of five satellite positioning systems.
[Xiaomi Smart Hub]Remote photo-taking, find my phone, earphone settings*, and more. It can also control Xiaomi Home devices*, making smart wearables and home life more intelligently interconnected.