| General |
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| Release date | 2026-08-20 | 2026-07 |
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| Physical size | 41 x 41 x 12.3 mm; 45 x 45 x 12.3 mm | 44 mm: 46.0 x 43.7 x 8.6 mm; 40 mm: 42.7 x 40.4 x 8.6 mm |
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| Weight | 41 mm: 31 g; 45 mm: 36.7 g | 44 mm: 34.0 g; 40 mm: 31.5 g |
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| Material | Housing: 100% recycled aluminium; Active Band: fluoroelastomer with soft-touch coating; Custom 3D Corning Gorilla Glass 5 | Armor Aluminum case; sapphire crystal |
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| Water resistance | 5 ATM; IP68 | 5 ATM; IP68; MIL-STD-810H |
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| Color options | Obsidian, Olive, Fog, Canyon | Graphite, Silver, Cream |
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| Display type | Actua 360 AMOLED LTPO, DCI-P3, always-on display | Super AMOLED, full-colour Always On Display |
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| Display size | 41mm: 1.33 inches; 45mm: 1.49 inches | 44 mm: 1.47 inches (37.3 mm); 40 mm: 1.34 inches (34 mm) |
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| Display resolution | 41mm: 408 x 408; 45mm: 456 x 456; 320 ppi | 44 mm: 480 x 480 pixels; 40 mm: 438 x 438 pixels |
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| Display brightness | Up to 3,000 nits | Up to 3,000 nits |
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| Display protection | Custom 3D Corning Gorilla Glass 5 | Sapphire crystal |
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| Battery | Rechargeable lithium-ion battery; 41 mm: 325 mAh; 45 mm: 455 mAh | Built-in rechargeable battery; 44 mm: 445 mAh; 40 mm: 390 mAh |
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| Battery life | 41mm: up to 30 hours with always-on display, up to 48 hours in Battery Saver mode; 45mm: up to 40 hours with always-on display, up to 72 hours in Battery Saver mode | Up to 40 hours with AOD off; up to 30 hours with AOD on |
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| Charging | Google Pixel Watch Quick Charge Dock | Fast wireless charging |
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| Charging time | 41mm: about 15 min to 50%, 25 min to 80%, 45 min to 100%; 45mm: about 15 min to 50%, 30 min to 80%, 60 min to 100% | |
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| Sensors |
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| GNSS type | Built-in dual-band GNSS | Built-in dual-band GNSS |
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| GPS | Yes; enhanced post-processed route accuracy for walking, running, hiking and cycling | Yes |
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| GALILEO | Yes | Yes |
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| GLONASS | Yes | Yes |
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| QZSS | Yes | Yes |
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| Beidou | Yes | Yes |
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| Accelerometer | Yes | Yes |
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| Gyroscope | Yes | Yes |
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| Barometric altimeter | Yes | Yes |
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| Compass | Yes | Yes |
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| Geomagnetic | Yes | Yes |
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| Ambient light sensor | Yes | Yes |
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| Optical heart rate | Yes | Yes |
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| Electrical heart rate | Yes | Yes |
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| SpO2 | Yes | Yes |
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| Temperature | Yes | Yes |
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| Galvanic skin response | Yes | Yes |
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| Microphone | Yes | Yes |
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| Speakers | Yes | Yes |
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| Vibration motor | Yes | Yes |
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| Health & activity tracking |
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| Steps | Yes | Yes |
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| Distance | Yes | Yes |
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| Calories burned | Yes | Yes |
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| Floors | Yes | Yes |
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| Sports tracking | Yes; workout builder, weight and rep tracking, audio cues and rest timers | Yes |
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| Sleep | Yes; claimed 15% more accurate sleep tracking; Smart Wake; overnight sleep breathing quality | Yes |
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| Heart rate | Yes | Yes |
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| HRV | Yes | Yes |
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| Stress | Yes | Yes |
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| Blood oxygen | Yes | Yes |
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| Respiration rate | Yes | Yes |
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| Skin temperature | Yes | Yes |
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| ECG | Yes | Yes |
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| Blood pressure | No; Blood Pressure Trends is an app-based report, not direct blood-pressure measurement | Yes (Samsung Health Monitor; availability varies by market, calibration required) |
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| Body composition | No | Yes |
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| Glucose | No; Insulin Resistance Trends is an app-based report, not direct glucose measurement | No |
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| Hydration level | No | No |
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| UV exposure | No | No |
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| Calorie intake | No | No |
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| Readiness / recovery | Daily Readiness | |
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| Training load / strain | Cardio Load | |
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| Hyperglycemia risk assessment | No | No |
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| Arterial stiffness detection | No | No |
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| Pulse wave arrhythmia analysis | Yes | Yes |
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| Daily smart features |
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| Smartphone compatibility | Most Android 11+ | Android with Google Mobile Services |
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| Operating system at launch | Wear OS 7 | Wear OS 7 Powered by Samsung; One UI 9 Watch |
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| Processor | Qualcomm SW5100 platform; 4x Cortex-A53 at 1.7 GHz; Adreno 702 GPU | Qualcomm Snapdragon Wear Elite / SDW6100 (3 nm, penta-core) |
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| RAM | 3 GB | 2 GB |
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| Storage | 64 GB eMMC flash | 32 GB |
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| Bluetooth | Yes (6.0) | Yes (6.0) |
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| Wi-Fi | 802.11a/b/g/n/ac/ax 2.4 GHz and 5 GHz | Yes (802.11 a/b/g/n, 2.4/5 GHz) |
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| NFC / connected pay | Yes | Yes |
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| UWB | Yes | No |
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| Cellular | Optional | Optional LTE/eSIM |
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| Smartphone notifications | Yes | Yes |
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| Bluetooth calling | Yes | Yes |
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| Smartphone music control | Yes | Yes |
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| On-board music storage | Yes | Yes |
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| Voice assistant | Gemini; Raise to Gemini supports offline questions and answers | Google Gemini / Bixby |
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| Navigation, safety & special features |
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| Maps | Google Maps | Yes (Google Maps) |
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| Offline maps | Yes (Google Maps) | Yes (Google Maps) |
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| Navigation | Turn-by-turn Google Maps navigation | Yes (turn-by-turn navigation) |
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| Emergency SOS | Yes (availability/connectivity varies) | Yes |
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| Satellite SOS | LTE model only (supported regions) | No |
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| Fall detection | Yes (availability varies) | Yes |
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| LED flashlight | No | No |
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| Diving | No | |
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| Links |
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| Affiliate link | | Samsung |
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| Read more | Article | Article |
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