List of Apple Watches

There are five iterations of the Apple Watch.

Apple Watch (1st generation)
Variations
 * Apple Watch
 * Apple Watch Sport
 * Apple Watch Edition

Hardware Specifications
 * CPU: S7002 "Apple S1"
 * RAM: 512 MB
 * Storage: 8 GB
 * Wi-Fi: 802.11 b/g/n (2.4 GHz)
 * Bluetooth 4.0

Battery Specs
 * 38mm
 * Current: 205mAh
 * Power: 0.78Wh
 * Voltage: 3.80V
 * 42mm
 * Current: 246mAh
 * Power: 0.93Wh
 * Voltage: 3.78V

Firmware
 * Initial firmware: 1.0 (12S507), 1.0 (12S507)
 * Last firmware: 4.3.2 (15U70), 4.3.2 (15U70)

Internal Names: Watch1,1, Watch1,2

Apple Watch Series 1
Variations
 * Apple Watch

Hardware Specifications
 * CPU: T8002 "Apple S1P"
 * RAM: 512 MB
 * Storage: 8 GB
 * Wi-Fi: 802.11 b/g/n (2.4 GHz)
 * Bluetooth 4.0

Battery Specs
 * 38mm
 * Current: 205mAh
 * Power: 0.78Wh
 * Voltage: 3.80V
 * 42mm
 * Current: 246mAh
 * Power: 0.93Wh
 * Voltage: 3.78V

Firmware
 * Initial firmware: 3.0 (14S326), 3.0 (14S326)
 * Last firmware: 6.2.8 (17U63), 6.2.8 (17U63)

Internal Names: Watch2,6, Watch2,7

Apple Watch Series 2
Variations
 * Apple Watch
 * Apple Watch Sport
 * Apple Watch Nike+
 * Apple Watch Hermès
 * Apple Watch Edition

Hardware Specifications
 * CPU: T8002 "Apple S2"
 * RAM: 512 MB
 * Storage: 8 GB
 * Wi-Fi: 802.11 b/g/n (2.4 GHz)
 * Bluetooth 4.0

Battery Specs
 * 38mm
 * Current: 273mAh
 * Power: 1.03Wh
 * Voltage: 3.77V
 * 42mm
 * Current: 334mAh
 * Power: 1.27Wh
 * Voltage: 3.80V

Firmware
 * Initial firmware: 3.0 (14S326), 3.0 (14S326)
 * Last firmware: 6.2.8 (17U63), 6.2.8 (17U63)

Internal Names: Watch2,3, Watch2,4

Apple Watch Series 3
Variations
 * Apple Watch
 * Apple Watch Edition
 * Apple Watch Hermès
 * Apple Watch Nike+

Hardware Specifications
 * CPU: T8004 "Apple S3"
 * RAM: 768 MB
 * Storage: 8 GB (GPS) or 16 GB (GPS + Cellular)
 * Wi-Fi: 802.11 b/g/n (2.4 GHz)
 * Bluetooth 4.2
 * Apple W2 Wireless chip.
 * Qualcomm MDM9635 (GPS + Cellular models only)

Battery Specs
 * 38mm (GPS)
 * Current: 262mAh
 * Power: 1.00Wh
 * Voltage: 3.81V
 * 38mm (GPS + Cellular)
 * Current: 279mAh
 * Power: 1.07Wh
 * Voltage: 3.82V
 * 42mm (GPS)
 * Current: 342mAh
 * Power: 1.31Wh
 * Voltage: 3.82V
 * 42mm (GPS + Cellular)
 * Current: 352mAh
 * Power: 1.34Wh
 * Voltage: 3.82V

Firmware
 * Initial firmware: 4.0 (15R372), 4.0 (15R372), 4.0 (15R372), 4.0 (15R372)
 * Latest public firmware:, , ,
 * Latest beta firmware:, , ,

Internal Names: Watch3,1, Watch3,2, Watch3,3, Watch3,4

Apple Watch Series 4
Variations
 * Apple Watch
 * Apple Watch Hermès
 * Apple Watch Nike+

Hardware Specifications
 * CPU: T8006 "Apple S4"
 * RAM: 1 GB
 * Storage: 16 GB
 * Wi-Fi: 802.11 b/g/n (2.4 GHz)
 * Bluetooth 5.0
 * Apple W3 Wireless chip.
 * Intel PMB9955 (GPS + Cellular models only)

Battery Specs
 * 40mm
 * Current: 224.9mAh
 * Power: 0.858Wh
 * Voltage: 3.810V
 * 44mm
 * Current: 291.8mAh
 * Power: 1.113Wh
 * Voltage: 3.814V

Firmware
 * Initial firmware: 5.0 (16R364), 5.0 (16R364), 5.0 (16R364), 5.0 (16R364)
 * Latest public firmware:, , ,
 * Latest beta firmware:, , ,

Internal Names: Watch4,1, Watch4,2, Watch4,3, Watch4,4

Apple Watch Series 5
Variations
 * Apple Watch
 * Apple Watch Studio
 * Apple Watch Nike
 * Apple Watch Hermès
 * Apple Watch Edition

Hardware Specifications
 * CPU: T8006 "Apple S5"
 * RAM: 1 GB
 * Storage: 32 GB
 * Wi-Fi: 802.11 b/g/n (2.4 GHz)
 * Bluetooth 5.0
 * Apple W3 Wireless chip.
 * Intel PMB9955 (GPS + Cellular models only)

Battery Specs
 * 40mm
 * Current: 245mAh
 * Power: 0.944Wh
 * Voltage: 3.85V
 * 44mm
 * Current: 296mAh
 * Power: 1.129Wh
 * Voltage: 3.814V

Firmware
 * Initial firmware: 6.0 (17R575), 6.0 (17R575), 6.0 (17R575), 6.0 (17R575)
 * Latest public firmware:, , ,
 * Latest beta firmware:, , ,

Internal Names: Watch5,1, Watch5,2, Watch5,3, Watch5,4