Google Pixel Watch 3 Specs vs. Pixel Watch 1, Pixel Watch 2

Shape Round Round Round Watch size 41mm, 45mm 41mm 41mm Materials, finishes Aluminum Aluminum Stainless steel Display size, resolution 41mm: 320ppi, AMOLED LTPO; 45mm: 320ppi AMOLED LTPO 1.2-inch, 450 x 450 pixels (320 ppi) 1.2-inch, 450 x 450 pixels (320 ppi) Dimensions 41mm: 41 x 41 x 12.3 mm; 45mm: 45 x 45 x 12.3 mm 41mm x 12.3mm 41mm x 12.3mm Weight 41mm: 31g 45mm: 37g 31g 36g Colors Matte black Polished silver Matte hazel Champagne gold Matte black, polished silver, champagne gold Black, silver, gold Always On Yes Yes Yes Interchangable bands Yes Yes Yes GPS Yes Yes Yes Automatic workout detection Yes Yes No Compass Yes Yes Yes Altimeter Yes Yes Yes Water resistance 5ATM, IP68 5ATM, IP68 Yes, 5ATM Calls Yes Yes Yes Microphone Yes Yes Yes Speaker Yes Yes Yes Voice assistant Yes (Google Assistant) Yes (Google Assistant) Yes (Google Assistant) Mobile Payments Yes (Google Wallet) Yes (Google Wallet) Yes (Google Wallet) Sleep tracking Yes Yes Yes Period tracking Yes Yes Yes Sensors SpO2, ECG, accelerometer, gyro, ambient light sensor, skin temperature sensor, barometer, magnetometer SpO2, ECG, accelerometer, gyro, ambient light sensor, skin temperature sensor, barometer, magnetometer Sp02, ECG, accelerometer, gyro, ambient light sensor, barometer, magnetometer Emergency features Safety Signal, Safety Check Safety Signal, Safety Check SOS, fall detection, Safety Check Compatibility Android 10 and above Android 9 and above Android 8.0 or later Software WearOS 5 WearOS 4 WearOS 3.5 Processor Qualcomm SW5100 Qualcomm SW5100 Exynos 9110 Connectivity Bluetooth 5.0, Ultra-wideband Bluetooth 5.0 WearOS 3.5 Memory and storage 2GB memory + 32GB storage 2GB memory + 32GB storage 2GB memory + 32GB storage Power USB-C fast charging cable USB-C fast charging cable LTE, Bluetooth 5.0, Wi-Fi, NFC Battery life 24 hours with always-on display 24 hours with always-on display 1 day Battery capacity 41mm: 306mAh 45mm: 420mAh 306 mAh 294 mAh Price (USD) $350 (Wi-Fi, 41mm), $400 (Wi-Fi, 45mm), $450 (Wi-Fi + LTE, 41mm), $500 (Wi-Fi + LTE, 45mm) $350 (Wi-FI), $400 (Wi-Fi + LTE) $350 Price (GBP) £349 (Wi-Fi, 41mm), £399 (Wi-Fi, 45mm), £449 (Wi-Fi + LTE, 41mm), £499 (Wi-Fi + LTE, 45mm) £349 (Wi-FI), £400 (Wi-Fi + LTE) £339 Price (AUD) AU$579 (Wi-Fi, 41mm), AU$669 (Wi-Fi, 45mm), AU$749 (Wi-Fi + LTE, 41mm), AU$839 (Wi-Fi + LTE, 45mm) AU$549 (Wi-FI), $649 (Wi-Fi + LTE) AU$549