Always-On Retina, up to 2000 nits, Up to 24 hours, S10 dual-core, 5G option, Wi-Fi 4, Bluetooth 5.3, GPS, Hypertension alerts, ECG, Sleep score, Sleep apnea monitoring, 50m water resistance, IP6X dust resistance, Aluminum or Titanium, 46mm / 42mm

1.47-inch AMOLED, 480x480, 600 nits, Sapphire crystal, Stainless steel, MIUI Watch OS, Up to 14 days typical use, 500mAh, Wireless charging, Heart rate, SpO2, sleep, stress, 100+ sports modes, Dual-band, 5-system (Beidou, GPS, GLONASS, Galileo, QZSS), 5ATM, Supported with AI noise reduction, Bluetooth 5.2 + BLE

1.62-inch AMOLED, 192x490, 1200 nits, 60Hz, Up to 21 days typical use, 9 days AOD mode, Heart rate, SpO₂, accelerometer, gyroscope, ambient light, 150+ modes including running, cycling, rowing, 5ATM, Midnight Black, Glacier Silver, Mystic Rose, Arctic Blue, Titan Gray; interchangeable, Android 8.0+, iOS 12.0+, Mi Fitness app, Stress monitoring, sleep tracking, women's health, running courses, notifications

1.62-inch AMOLED, 192x490, 500 nits, always-on mode, Up to 14 days typical use, 9 days heavy use, Heart rate, SpO₂, 6-axis accelerometer & gyroscope, 110+ modes including running, walking, rowing, elliptical, 5ATM, TPU, 160–224 mm, interchangeable; black strap included, VO₂ max, training effect, training load, recovery duration, Sleep tracking (deep, light, REM, naps), stress monitoring, female health tracking, Android 6.0+, iOS 10+, Mi Fitness app

1.43-inch AMOLED, 466 × 466 pixels, 60Hz, 1500 nits HBM brightness, 486mAh, up to 15 days typical usage, 5-min fast charge for 2 days, GPS, Galileo, Glonass, BeiDou, QZSS, dual-frequency GNSS, 5ATM, Bluetooth 5.3, NFC, Xiaomi Smart Hub, wireless calling, Xiaomi HyperOS 2, Android 8.0+ / iOS 14.0+, 2-pin magnetic dock, 47.3 × 47.3 × 12.0 mm (excluding strap), 44.5g (without strap)