Samsung Galaxy Watch 4

wikipedia:Samsung Galaxy Watch 4 (August 2021)

• Wear OS
• blood pressure monitoring
• Qi Wireless charging

• Galaxy Watch 3 (Aug 2020)
• Bluetooth 5.0
• eSIM

Related

• A-GPS, GLONASS, Beidou, Galileo
• Samsung Galaxy Watch 5 (Aug 2022)

See also

• Wristwatch, Google Wear OS, Watch 6, Watch 5, Watch 4, Watch 3, Mi Watch, Mi Watch Lite, Apple watch, Google Pixel Watch
• Samsung Galaxy: A70, S10, S20, S21, S22 Ultra, S23, S24 (Plus, Ultra), A10, A11, A12, A13, Fold 3, Fold 4, Fold 5, Flip 3, Flip 4, Flip 5, Galaxy Unpacked, Galaxy Buds2 Pro, Galaxy Watch