List of Apple Watches

There are four iterations of the Apple Watch.

Apple Watch (1st generation)

Apple Watch

Variations: Apple Watch/Apple Watch Sport/Apple Watch Edition
Battery Specs:
- Current: 205 mA (38mm) / 246 mA (42mm)
- Power: 0.78 Wh (38mm) / 0.93 Wh (42mm)
- Voltage: 3.8 V (38mm) / 3.78 V (42mm)
CPU Specs:
- Processor: S7002 "S1"
RAM: 512 MB
Storage: 8 GB
Wi-Fi: 802.11 b/g/n (2.4 GHz)
Bluetooth 4.0
Firmware:
- Initial firmware: 1.0 (12S507), 1.0 (12S507)
- Latest publicly available firmware: 4.3.2 (15U70), 4.3.2 (15U70)
- Latest firmware: 4.3.2 (15U70), 4.3.2 (15U70)
Internal Name: Watch1,1, Watch1,2

Variations: Apple Watch (Sport bands)
Battery Specs:
- Current: 205 mA (38mm) / 246 mA (42mm)
- Power: 0.78 Wh (38mm) / 0.93 Wh (42mm)
- Voltage: 3.8 V (38mm) / 3.78 V (42mm)
CPU Specs:
- Processor: T8002 "S1P"
RAM: 512 MB
Storage: 8 GB
Wi-Fi: 802.11 b/g/n (2.4 GHz)
Bluetooth 4.0
Firmware:
- Initial firmware: 3.0 (14S326), 3.0 (14S326)
- Latest firmware: 16.1.1 (20B101), 16.1.1 (20B101)
- Latest beta firmware: 16.2 beta 2 (20C5043e), 16.2 beta 2 (20C5043e)
Internal Name: Watch2,6, Watch2,7

Variations: Apple Watch/Apple Watch Sport/Apple Watch Edition/Apple Watch Hermes/Apple Watch Nike+
Battery Specs:
- Current: 273 mA (38mm) / 334 mA (42mm)
- Power: 1.03 Wh (38mm) / 1.27 Wh (42mm)
- Voltage: 4.35 V (38mm) / 3.8 V (42mm)
CPU Specs:
- Processor: T8002 "S2"
RAM: 512 MB
Storage: 8 GB
Wi-Fi: 802.11 b/g/n (2.4 GHz)
Bluetooth 4.0
Firmware:
- Initial firmware: 3.0 (14S326), 3.0 (14S326)
- Latest firmware: 16.1.1 (20B101), 16.1.1 (20B101)
- Latest beta firmware: 16.2 beta 2 (20C5043e), 16.2 beta 2 (20C5043e)
Internal Name: Watch2,3, Watch2,4

Variations: Apple Watch / Apple Watch Edition / Apple Watch Hermes / Apple Watch Nike+
Battery Specs:
- Current: 279 mA (38mm GPS/LTE) / 352 mA (42mm GPS/LTE) / 262 mA (38mm GPS) / ? mA (42mm GPS)
- Power: 1.07 Wh (38mm GPS/LTE) / ? Wh (42mm GPS/LTE) / 1.0 Wh (38mm GPS) / 1.34 Wh (42mm GPS)
- Voltage: 3.82 V (38mm GPS/LTE) / ? V (42mm GPS/LTE) / 3.81 V (38mm GPS) / ? V (42mm GPS)
CPU Specs:
- Processor: T8004 "S3"
RAM: 768 MB
Storage: 8 (GPS) or 16 GB (GPS + LTE)
Wi-Fi: 802.11 b/g/n (2.4 GHz)
Bluetooth 4.2
Firmware:
- Initial firmware: 4.0 (15R372), 4.0 (15R372), 4.0 (15R372), 4.0 (15R372)
- Latest firmware: 16.1.1 (20B101), 16.1.1 (20B101), 16.1.1 (20B101), 16.1.1 (20B101)
- Latest beta firmware: 16.2 beta 2 (20C5043e), 16.2 beta 2 (20C5043e), 16.2 beta 2 (20C5043e), 16.2 beta 2 (20C5043e)
Internal Name: Watch3,1, Watch3,2, Watch3,3, Watch3,4

Variations: Apple Watch/Apple Watch Hermes/Apple Watch Nike+
Battery Specs:
- Current: ? mA (40mm) / ? mA (44mm) / ? mA (40mm LTE) / 291.8 mA (44mm LTE)
- Power: 0.86 Wh (40mm) / 1.113 Wh (44mm) / 0.86 Wh (40mm LTE) / 1.113 Wh (44mm LTE)
- Voltage: ? V (40mm) / ? V (44mm) / ? V (40mm LTE) / 3.81 V (44mm LTE)
CPU Specs:
- Processor: T8006 "S4"
RAM: ? MB
Storage: 16 GB
Wi-Fi: 802.11 b/g/n (2.4 GHz)
Bluetooth 5.0
Firmware:
- Initial firmware: 5.0 (16R364), 5.0 (16R364), 5.0 (16R364), 5.0 (16R364)
- Latest firmware: 9.1 (20S75), 9.1 (20S75), 9.1 (20S75), 9.1 (20S75)
- Latest beta firmware: 9.2 beta 2 (20S5342d), 9.2 beta 2 (20S5342d), 9.2 beta 2 (20S5342d), 9.2 beta 2 (20S5342d)
Internal Name: Watch4,1, Watch4,2, Watch4,3, Watch4,4

Variations: ?
Battery Specs:
- Current: ? mA (40mm) / ? mA (44mm) / ? mA (40mm LTE) / ? mA (44mm LTE)
- Power: ? Wh (40mm) / ? Wh (44mm) / ? Wh (40mm LTE) / ? Wh (44mm LTE)
- Voltage: ? V (40mm) / ? V (44mm) / ? V (40mm LTE) / ? (44mm LTE)
CPU Specs:
- Processor: "S5"
RAM: 1 GB
Storage: 32 GB
Wi-Fi: 802.11 b/g/n (2.4 GHz)
Bluetooth 5.0
Firmware:
- Initial firmware: 6.0 (17R575), 6.0 (17R575), 6.0 (17R575), 6.0 (17R575)
- Latest firmware: 9.1 (20S75), 9.1 (20S75), 9.1 (20S75), 9.1 (20S75)
- Latest beta firmware: 9.2 beta 2 (20S5342d), 9.2 beta 2 (20S5342d), 9.2 beta 2 (20S5342d), 9.2 beta 2 (20S5342d)
Internal Name: Watch5,1, Watch5,2, Watch5,3, Watch5,4