Image: Samsung Electronics
Galaxy Watch9 (44mm)
Specs verified 2026-10-03 · source
Samsung's lightweight, slim-profile Wear OS smartwatch with a 3nm 5-core processor and a 3000-nit display, available in 40mm and 44mm case sizes.
Official product pageAt a glance
Device overview
Chip
Powered by 3nm 5-core processor.
Health & sensors
Health and sensor features: Energy Score, Sleep Apnea detection, Bedtime Guidance, High Stress Alert, Fitness Index, Daily Cardio Load, Running Coach, Vitals, Heart Health Score, Personalized Heart Rate Zone, Personalized Functional Threshold Power, AGEs Index, Blood Pressure, ECG, Irregular Heart Rhythm Notification, Antioxidant, Body Composition, Cycle Tracking, Hearing Protection.
Battery
Equipped with a 445 mAh battery.
Connectivity
Supports Bluetooth or Bluetooth + LTE variants available.
Specifications
| Design & Build | |
| Water resistance | 5 ATM + IP68, MIL-STD-810H tested |
|---|---|
| Colors | Graphite, Silver |
| Build materials | Aluminum |
| Display | |
| Peak brightness | 3000 nits |
| Performance | |
| Chipset | 3nm 5-core processor |
| Memory & Storage | |
| Storage | 32 GB |
| Battery & Charging | |
| Battery capacity | 445 mAh |
| Connectivity | |
| Cellular connectivity | Bluetooth or Bluetooth + LTE variants available |
| Positioning | L1+L5 dual-frequency GPS |
| Software | |
| Operating system at launch | Wear OS (by Google) |
| Phone compatibility | Requires a compatible Samsung Galaxy phone running Android 12 or later, Samsung Health app, and Samsung account |
| Security & Sensors | |
| Health sensors | Energy Score, Sleep Apnea detection, Bedtime Guidance, High Stress Alert, Fitness Index, Daily Cardio Load, Running Coach, Vitals, Heart Health Score, Personalized Heart Rate Zone, Personalized Functional Threshold Power, AGEs Index, Blood Pressure, ECG, Irregular Heart Rhythm Notification, Antioxidant, Body Composition, Cycle Tracking, Hearing Protection |
Sources & verification
This device is fully verified: every required fact is confirmed from a Tier 1 (manufacturer/official) source.
- Samsung ElectronicsManufacturerTier 1
Tier 1 sources are the manufacturer's own product pages, technical specification sheets, or support documentation. Tier 2 sources are reputable independent technical references, used only for facts that couldn't be confirmed from official documentation. Last verified 2026-10-03.