Galaxy Watch9 (44mm) vs Galaxy Watch8
Verified 2026-10-03
A factual specification comparison between the Galaxy Watch9 (44mm) and the Galaxy Watch8.
Image: Samsung Electronics
SamsungGalaxy Watch9 (44mm)
Fully verifiedSmartwatchReleased · 2026-07-25Announced 2026-07-09
Specs: source
View full specs
Image: Samsung Newsroom — Galaxy Watch8 series unveiling
SamsungGalaxy Watch8
Fully verifiedSmartwatchReleased · 2025-07-25Announced 2025-07-09
Specs: source
View full specsKey differences
| Specification | Galaxy Watch9 (44mm) | Galaxy Watch8 |
|---|---|---|
| Water resistance | 5 ATM + IP68, MIL-STD-810H tested | 5 ATM |
| Chipset | 3nm 5-core processor | Penta-core processor (1.6GHz + 1.5GHz) |
| Battery capacity | 445 | 435 |
| Cellular connectivity | Bluetooth or Bluetooth + LTE variants available | Available in LTE and Bluetooth models |
| Positioning | L1+L5 dual-frequency GPS | Dual-band GPS (L1 and L5) |
| Operating system at launch | Wear OS (by Google) | Wear OS 6, One UI 8 Watch |
| Phone compatibility | Requires a compatible Samsung Galaxy phone running Android 12 or later, Samsung Health app, and Samsung account | Requires a Samsung Galaxy smartphone running Android 12 or higher |
| 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 | Heart rate, Barometer/altimeter, SpO2, Skin temperature, BioActive sensor (antioxidant index) |
Facts shown above are the specifications where both devices have a confirmed value and those values differ — not an indication that either device is better.
Specifications
| Specification | Galaxy Watch9 (44mm) | Galaxy Watch8 |
|---|---|---|
| Design & Build | ||
| Water resistance | 5 ATM + IP68, MIL-STD-810H tested | 5 ATM |
| Colors | Graphite, Silver | Graphite, Silver |
| Weight | Not disclosed | 44mm: 34.0 g |
| Case dimensions | Not disclosed | 44mm: 46.0 × 43.7 × 8.6 mm |
| Build materials | Aluminum | — |
| Display | ||
| Display | Not disclosed | Super AMOLED |
| Peak brightness (nits) | 3000 | 3000 |
| Resolution | Not disclosed | 44mm: 480×480 pixels |
| Performance | ||
| Chipset model name | Not disclosed | Exynos W1000 (marketing name — Samsung's own technical spec sheet states only core count/clock speed) |
| Chipset | 3nm 5-core processor | Penta-core processor (1.6GHz + 1.5GHz) |
| Memory & Storage | ||
| Storage (GB) | 32 | 32 |
| Battery & Charging | ||
| Charging time | Not disclosed | 10W wireless charging |
| Battery capacity (mAh) | 445 | 435 |
| Battery life | Not disclosed | Up to 30 hours with Always On Display enabled |
| Connectivity | ||
| Wi-Fi | Not disclosed | Wi-Fi 802.11 a/b/g/n, dual-band |
| Bluetooth | Not disclosed | Bluetooth 5.3 |
| Contactless payments | Not disclosed | Samsung Wallet (NFC) |
| Cellular connectivity | Bluetooth or Bluetooth + LTE variants available | Available in LTE and Bluetooth models |
| Positioning | L1+L5 dual-frequency GPS | Dual-band GPS (L1 and L5) |
| Software | ||
| Operating system at launch | Wear OS (by Google) | Wear OS 6, One UI 8 Watch |
| Phone compatibility | Requires a compatible Samsung Galaxy phone running Android 12 or later, Samsung Health app, and Samsung account | Requires a Samsung Galaxy smartphone running Android 12 or higher |
| 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 | Heart rate, Barometer/altimeter, SpO2, Skin temperature, BioActive sensor (antioxidant index) |
Sources & verification
Galaxy Watch9 (44mm)
Verified 2026-10-03- Samsung ElectronicsManufacturerTier 1
Galaxy Watch8
Verified 2026-10-01- Samsung ElectronicsManufacturerTier 1
- Samsung ElectronicsManufacturerTier 1
- Samsung Newsroom — Galaxy Watch8 series unveilingManufacturer newsroomTier 1
- GSMArena — Samsung Galaxy Watch8Independent technical sourceTier 2
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, as is the case for some facts here.