Xiaomi Watch 2 Pro vs Xiaomi Watch S4

Xiaomi Watch 2 Pro

Xiaomi Watch 2 Pro

vsXiaomi Watch S4

Xiaomi Watch S4

Xiaomi Watch 2 ProXiaomi Watch S4
Display1.43" AMOLED, 466 x 466 pixels, 326 ppi, always-on display supported1.32" AMOLED, 466 x 466 pixels, 352 ppi, 60Hz, up to 1500 nits (HBM)
Size47.6 x 45.9 x 12.5 mm, approx. 54 g without strap41 mm; 41.2 x 41.2 x 9.5 mm, approx. 32 g without strap
CaseStainless steel, 46 mm dial with Parisian hobnail bezelStainless steel frame
ChipsetQualcomm Snapdragon W5+ Gen 1 (4nm)—
RAM2GB—
Storage32GB eMMC—
BatteryUp to 65 hours (Bluetooth version), up to 55 hours (LTE version), 495 mAh, magnetic charging, about 45 minutes to chargeUp to 8 days (light use), up to 4 days (normal use), up to 3 days (heavy use), 320 mAh, magnetic 2-pin charging dock
Water Resistance5 ATM5 ATM
PositioningDual-band L1+L5 five-system GNSS: GPS, Galileo, GLONASS, BeiDou, QZSSBuilt-in dual-frequency L1+L5 GNSS: GPS, Galileo, GLONASS, BeiDou, QZSS
ConnectivityBluetooth 5.2, Wi-Fi 2.4/5 GHz, NFC, Bluetooth calling, independent eSIM (LTE version)Bluetooth 5.4, Bluetooth calling, NFC (varies by region)
SensorsOptical heart rate, accelerometer, gyroscope, ambient light, compass, barometer, bioelectrical impedanceHeart rate with blood oxygen, accelerometer, gyroscope, ambient light, compass, barometer, skin temperature
Sports Modes150+ sports modes150+ sports modes
OSGoogle Wear OSXiaomi HyperOS 3
CompatibilityAndroid 8.0 or later with GMS 21.30.12 or laterAndroid 8.0 or later, iOS 14.0 or later
StrapFluororubber or leatherFluororubber (black, mint green), leather (white), Milanese (Sunset gold), 120-190 mm adjustable
ColorsSilver case with brown leather strap, black case with black fluororubber strapBlack, White, Sunset gold, Mint green