| Starting MSRP |
$399 (GPS) / $499 (5G) |
$399 (GPS) / $499 (LTE) |
$799 |
$799 |
$249 (GPS) / $299 (5G) |
$249 (GPS) / $299 (LTE) |
| Sizes |
42mm / 46mm |
42mm / 46mm |
49mm |
49mm |
40mm / 44mm |
40mm / 44mm |
| Case material |
Aluminum or titanium |
Aluminum or titanium |
Titanium |
Titanium |
Aluminum |
Aluminum |
| Weight (Grams) |
42mm: 30.3 (aluminum GPS) / 29.7 (aluminum 5G) / 34.6 (titanium) |
42mm: 30 (aluminum GPS) / 29.3 (aluminum LTE) / 34.4 (titanium) |
61.6 (natural / light gray) /61.8 (black) |
61.4 (natural / light gray) /61.8 (black) |
40mm: 26.3 (GPS) / 26.4 (cellular)44mm: 32.9 (GPS) / 33 (cellular) |
40mm: 26.4 (GPS) / 27.8 (cellular)44mm: 32.9 (GPS) / 33 (cellular) |
| Display |
Always-On Retina LTPO3 OLED / wide-angle OLED |
Always-On Retina LTPO3 OLED / wide-angle OLED |
Always-On Retina LTPO3 OLED |
Always-On Retina LTPO2 OLED |
Always-On Retina LTPO OLED |
Retina LTPO OLED |
| Screen brightness |
Up to 2,000 nits brightness |
Up to 2,000 nits brightness |
Up to 3,000 nits brightness |
Up to 3,000 nits brightness |
Up to 1,000 nits brightness |
Up to 1,000 nits brightness |
| Screen resolution |
42mm: 374 x 446 |
42mm: 374 x 446 |
422 x 514 |
410 x 502 |
40mm: 324 x 394 |
40mm: 324 x 394 |
|
46mm: 416 x 496 |
46mm: 416 x 496 |
|
|
44mm: 368 x 448 |
44mm: 368 x 448 |
| Minimum brightness |
1 nit |
1 nit |
1 nit |
1 nit |
2 nits |
N/A |
| Processor |
S10 SiP with 64-bit dual-core processor |
S10 SiP with 64-bit dual-core processor |
S10 SiP with 64-bit dual-core processor |
S9 SiP with 64-bit dual-core processor |
S10 with 64-bit dual-core processor |
S8 with 64-bit dual-core processor |
| Ultra wideband chip (second-gen) |
Yes |
Yes |
Yes |
Yes |
No |
No |
| Operating system |
watchOS 26 |
watchOS 26 |
watchOS 26 |
watchOS 26 |
watchOS 26 |
watchOS 26 |
| Water resistance |
Water resistant up to 50 meters |
Water resistant up to 50 meters |
Water resistant up to 100 meters |
Water resistant up to 100 meters |
Water resistant up to 50 meters |
Water resistant up to 50 meters |
| Dust resistance |
IP6X-rated |
IP6X-rated |
IP6X-rated / Tested to MIL-STD 810H |
IP6X-rated / Tested to MIL-STD 810H |
N/A |
N/A |
| Connectivity |
Wi-Fi 4 (2.4 and 5GHz) + L1 GPS + Bluetooth 5.3 |
Wi-Fi 4 + L1 GPS + Bluetooth 5.3 |
Wi-Fi 4 (2.4 and 5GHz) + Precision dual-frequency (L1 and L5) GPS + Bluetooth 5.3 + 5G |
Wi-Fi 4 + Precision dual-frequency (L1 and L5) GPS + Bluetooth 5.3 + LTE |
Wi-Fi 4 (2.4GHz) + L1 GPS + Bluetooth 5.3 |
Wi-Fi 4 + L1 GPS + Bluetooth 5.3 |
| Storage |
64GB |
64GB |
64GB |
64GB |
64GB |
32GB |
| Estimated battery life |
Up to 24 hours; 38 hours in low-power mode |
Up to 18 hours; 36 hours in low-power mode |
Up to 42 hours; 72 hours in low-power mode |
Up to 36 hours; 72 hours in low-power mode |
Up to 18 hours; up to 36 hours in low-power mode |
Up to 18 hours |
| Fast Charging |
Yes (80 percent in about 30 minutes) |
Yes (80 percent in about 30 minutes) |
Yes (80 percent in about 45 minutes) |
Yes (80 percent in about 1 hour) |
Yes (80 percent in about 45 minutes) |
No |
| Double-tap gesture |
Yes |
Yes |
Yes |
Yes |
Yes |
No |
| Wrist-flick gesture |
Yes |
Yes |
Yes |
Yes |
Yes |
No |
| Siri |
Yes (on-device) |
Yes (on-device) |
Yes (on-device) |
Yes (on-device) |
Yes (on-device) |
Yes |
| Apple Pay |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
| Sleep tracking |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
| Sleep apnea notifications |
Yes |
Yes |
Yes |
Yes |
Yes |
No |
| Cycle tracking |
Yes with retrospective ovulation estimates |
Yes with retrospective ovulation estimates |
Yes with retrospective ovulation estimates |
Yes with retrospective ovulation estimates |
Yes with retrospective ovulation estimates |
Yes with retrospective ovulation estimates |
| Heart sensor |
Third-gen optical heart sensor |
Third-gen optical heart sensor |
Third-gen optical heart sensor |
Third-gen optical heart sensor |
Second-gen optical heart sensor |
Second-gen optical heart sensor |
| Electrical heart sensor (ECG app) |
Yes |
Yes |
Yes |
Yes |
No |
No |
| Hypertension notifications |
Yes |
Yes |
Yes |
Yes |
No |
No |
| Blood oxygen app |
Yes |
Yes |
Yes |
Yes |
No |
No |
| High, low, or irregular heart notifications |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
| Temperature sensor |
Yes |
Yes |
Yes |
Yes |
Yes |
No |
| Compass |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
| Offline maps |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
| Always-on altimeter |
Yes |
Yes |
Yes with expanded operating range from (500m to 9,000m) |
Yes with expanded operating range from (500m to 9,000m) |
Yes |
Yes |
| Fall detection |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
| Crash detection |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
| Emergency SOS |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
| Emergency SOS via Satellite |
No |
No |
Yes |
No |
No |
No |
| Built-in mic and speaker |
Yes |
Yes |
Yes, triple-mic array, dual speakers |
Yes, triple-mic array |
Yes |
Yes |
| Media playback |
Yes |
Yes |
Yes |
Yes |
Yes |
No |
| Siren |
No |
No |
Yes |
Yes |
No |
No |
| Night mode |
No |
No |
Yes |
Yes |
No |
No |
| Water temperature and depth sensors |
Depth gauge to 6m and water temperature sensor; Oceanic Plus app for snorkeling |
Depth gauge to 6m and water temperature sensor; Oceanic Plus app for snorkeling |
Depth gauge to 40m and water temperature sensor; Oceanic Plus app for use as a dive computer |
Depth gauge to 40m and water temperature sensor; Oceanic Plus app for use as a dive computer |
No |
No |
| Colors |
Aluminum: jet black, rose gold, and silver; Titanium: slate, gold, and natural |
Aluminum: jet black, rose gold, and silver; Titanium: slate, gold, and natural |
Natural titanium and black |
Natural titanium and black |
Midnight, starlight |
Midnight, starlight, and silver |
