| Product |
Apple Watch Ultra 3
|
Apple Watch Series 8
|
| Battery |
| Charging |
Wireless, 0-80% in 45 min |
Wireless, 0-80% in 45 min |
| Type |
Li-Ion |
Li-Ion 308 mAh |
| Body |
| Build |
Sapphire crystal front, ceramic/sapphire crystal back, titanium frame (grade 5) |
Glass front, ceramic/sapphire crystal back, stainless steel frame |
| Dimensions |
49 x 44 x 12 mm (1.93 x 1.73 x 0.47 in) |
45 x 38 x 10.7 mm (1.77 x 1.50 x 0.42 in) |
| SIM |
eSIM |
eSIM |
| Weight |
61.6 g or 61.8 g (black) (2.15 oz) |
42.3 g (41mm), 51.5 g (45mm) (1.48 oz) |
| |
IP6X certified
100m water resistant (22810:2010)
40m swimproof/diving (EN13319)
MIL-STD-810H compliant
ECG certified (region dependent SW application; HW available on all models) |
IP6X certified
50m water resistant
ECG certified (region dependent SW application; HW available on all models) |
| Camera |
| |
No |
No |
| Comms |
| Bluetooth |
5.3, A2DP, LE |
5.3, A2DP, LE |
| NFC |
Yes |
Yes |
| Positioning |
GPS (L1+L5), GLONASS, GALILEO, BDS, QZSS |
GPS, GLONASS, GALILEO, QZSS, BDS |
| Radio |
No |
No |
| USB |
No |
No |
| WLAN |
Wi-Fi 802.11 b/g/n, dual-band |
Wi-Fi 802.11 b/g/n, dual-band |
| Display |
| Protection |
Sapphire crystal glass |
Sapphire crystal glass |
| Resolution |
514 x 422 pixels (~326 ppi density) |
484 x 396 pixels (~326 ppi density) |
| Size |
1.98 inches |
1.9 inches |
| Type |
Retina LTPO3 OLED, 3000 nits (peak) |
Retina LTPO OLED, 1000 nits (peak) |
| |
Wide-angle OLED |
- |
| Features |
| Sensors |
Accelerometer, gyro, heart rate, barometer, always-on altimeter (-500m to 9000m), compass, SpO2, VO2max, temperature (body), temperature (water) |
Accelerometer, gyro, heart rate, barometer, always-on altimeter, compass, SpO2, VO2max, temperature (body) |
| |
Temperature sensing (0.01˚ accuracy)
Depth gauge (±1m accuracy)
Ultra Wideband (UWB) support (gen2 chip)
Emergency SOS via satellite |
Temperature sensing (0.01˚ accuracy)
Ultra Wideband (UWB) support |
| Launch |
| Announced |
2025, September 09 |
2022, September 07 |
| Status |
Coming soon. Exp. release 2025, September 19 |
Available. Released 2022, September 16 |
| Memory |
| Card slot |
No |
No |
| Internal |
64GB |
32GB 1GB RAM |
| |
- |
eMMC 5.1 |
| Misc |
| Colors |
Natural, Black |
Graphite, Silver, Gold |
| Models |
A3281, A3282 |
A2773, A2775, A2772, A2774, A2857, A2858, watch6,16, watch6,17 |
| SAR |
- |
0.31 W/kg (head) 0.55 W/kg (body) |
| SAR EU |
- |
0.31 W/kg (head) 0.55 W/kg (body) |
| Network |
| 2G bands |
GSM 850 / 900 / 1800 / 1900 |
GSM 850 / 900 / 1800 / 1900 |
| 3G bands |
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 - International, China, HK |
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 - International, China, HK |
| 4G bands |
1, 2, 3, 4, 5, 6, 7, 8, 18, 19, 20, 25, 26, 28, 39, 40, 41, 66 - International, China, HK |
1, 2, 3, 4, 5, 6, 7, 8, 18, 19, 20, 25, 26, 28, 39, 40, 41, 66 - International, China, HK |
| 5G bands |
SA/NSA |
- |
| Speed |
HSPA, LTE, 5G |
HSPA, LTE |
| Technology |
GSM / HSPA / LTE / 5G |
GSM / HSPA / LTE |
| |
1, 2, 3, 4, 5, 6, 7, 12, 13, 14, 17, 18, 19, 25, 26, 39, 40, 41, 66 - USA, LATAM, Canada |
1, 2, 3, 4, 5, 6, 7, 12, 13, 14, 17, 18, 19, 25, 26, 39, 40, 41, 66 - USA, LATAM, Canada |
| Platform |
| Chipset |
Apple S10 |
Apple S8 |
| CPU |
Dual-core |
Dual-core |
| GPU |
PowerVR |
PowerVR |
| OS |
watchOS 26 |
watchOS 9.0, upgradable to watchOS 11.5 |
| Sound |
| 3.5mm jack |
No |
No |
| Loudspeaker |
Yes, with dual speakers (86-decibel) |
Yes |
