| Starting MSRP | $399 (Aluminum) / $699 (Titanium) / $899 (Ceramic) | $399 (GPS) / $499 (5G) | $799 | $799 |
| Sizes | 42mm / 46mm | 42mm / 46mm | 49mm | 49mm |
| Case materials | Aluminum or titanium or ceramic | Aluminum or titanium | Titanium | Titanium |
| Weight (Grams) | 42mm: 32.2 (aluminum GPS) / 31.5 (aluminum 5G) / 36.5 (titanium) / 41.7-42.8 (ceramic) | 42mm: 30.3 (aluminum GPS) / 29.7 (aluminum 5G) / 34.6 (titanium) | 63.0 (pure) / 63.1 (black) | 61.6 (pure / gentle grey) /61.8 (black) |
| Display | Always-On Retina LTPO3 OLED / wide-angle OLED | Always-On Retina LTPO3 OLED / wide-angle OLED | Always-On Retina LTPO3 OLED / wide-angle OLED | Always-On Retina LTPO3 OLED / wide-angle OLED |
| Screen brightness | Up to 2,000 nits brightness | Up to 2,000 nits brightness | Up to three,000 nits brightness | Up to three,000 nits brightness |
| Screen decision | 42mm: 374 x 449 | 42mm: 374 x 446 | 422 x 514 | 422 x 514 |
| 46mm: 416 x 496 | 46mm: 416 x 496 | | |
| Minimum brightness | 1 nit | 1 nit | 1 nit | 1 nit |
| Processor | S11 with 64-bit dual-core processor | S10 with 64-bit dual-core processor | S11 with 64-bit dual-core processor | S10 with 64-bit dual-core processor |
| Ultra wideband chip (second-gen) | Yes | Yes | Yes | Yes |
| Operating system | watchOS 27 | watchOS 26 | WatchOS 27 | watchOS 26 |
| Water resistance | Water resistant as much as 50 meters | Water resistant as much as 50 meters | Water resistant as much as 100 meters | Water resistant as much as 100 meters |
| Dust resistance | IP6X-rated | IP6X-rated | IP6X-rated / Tested to MIL-STD 810H | IP6X-rated / Tested to MIL-STD 810H |
| Connectivity | Wi-Fi 4 (2.4 and 5GHz) + L1 GPS + Bluetooth 5.3 | Wi-Fi 4 (2.4 and 5GHz) + L1 GPS + Bluetooth 5.3 | Wi-Fi 4 (2.4 and 5GHz) + Precision dual-frequency GPS + Bluetooth 5.3 + 5G | Wi-Fi 4 (2.4 and 5GHz) + Precision dual-frequency (L1 and L5) GPS + Bluetooth 5.3 + 5G |
| Storage | 64GB | 64GB | 64GB | 64GB |
| Estimated battery life | Up to 24 hours; 38 hours in low-power mode | Up to 24 hours; 38 hours in low-power mode | Up to 50 hours; 84 hours in low-power mode | Up to 42 hours; 72 hours in low-power mode |
| Fast Charging | Yes (80 p.c in about half-hour) | Yes (80 p.c in about half-hour) | Yes (80 p.c in about 45 minutes) | Yes (80 p.c in about 45 minutes) |
| Features | Siri, Apple Pay, single faucet, double faucet, wrist flick | Siri, Apple Pay, single faucet, double faucet, wrist flick | Siri, Apple Pay, single faucet, double faucet, wrist flick | Siri, Apple Pay, single faucet, double faucet, wrist flick |
| Health monitoring | Sleep, cycle monitoring with retrospective ovulation estimates, third-generation optical coronary heart sensor, ECG, hypertension, blood oxygen | Sleep, cycle monitoring with retrospective ovulation estimates, third-generation optical coronary heart sensor, ECG, hypertension, blood oxygen | Sleep, cycle monitoring with retrospective ovulation estimates, third-generation optical coronary heart sensor, ECG, hypertension, blood oxygen | Sleep, cycle monitoring with retrospective ovulation estimates, third-generation optical coronary heart sensor, ECG, hypertension, blood oxygen |
| Health notifications | Sleep apnea, hypertension, excessive/low/irregular coronary heart, fall detection, crash detection | Sleep apnea, hypertension, excessive/low/irregular coronary heart, fall detection, crash detection | Sleep apnea, hypertension, excessive/low/irregular coronary heart, fall detection, crash detection | Sleep apnea, hypertension, excessive/low/irregular coronary heart, fall detection, crash detection |
| Environmental monitoring | Temperature sensor, compass, offline maps, always-on altimeter | Temperature sensor, compass, offline maps, always-on altimeter | Temperature sensor, compass, offline maps, always-on altimeter | Temperature sensor, compass, offline maps, always-on altimeter |
| Emergency SOS | Yes (mobile solely) | Yes (mobile solely) | Yes (mobile, satellite tv for pc) | Yes (mobile, satellite tv for pc) |
| Built-in mic and speaker | Yes | Yes | Yes, triple-mic array, twin audio system | Yes, triple-mic array, twin audio system |
| Media playback | Yes | Yes | Yes | Yes |
| Siren | No | No | Yes | Yes |
| Night mode | No | No | Yes | Yes |
| Water temperature and depth sensors | Depth gauge as much as 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 to be used as a dive laptop | Depth gauge to 40m and water temperature sensor; Oceanic Plus app to be used as a dive laptop |
| Colors | Aluminum: darkish bronze, gentle gold, black, house grey; Titanium: radiant gold, pure; ceramic: pearl white, night time blue | Aluminum: jet black, rose gold, and silver; Titanium: slate, gold, and pure | Natural titanium and black | Natural titanium and black |