The Galaxy Watch 8 represents a refined evolution in the Samsung smartwatch lineup, bringing high-end features in two size options (40 mm and 44 mm) and offering both Bluetooth/WiFi-only and LTE/eSIM versions. The design uses an “Armor Aluminum” case and a sleek, low-profile “squircle” form-factor that measures just 8.6 mm thick. The 40 mm version weighs around 30 g and the 44 mm around 34 g.

The display is vivid and sharp: on the 40 mm model it features a 1.34-inch Super AMOLED panel, and the 44 mm model a 1.47-inch panel, both with high brightness (up to ~3,000 nits) and protected by sapphire crystal. Under the hood, the Watch8 is powered by Samsung’s Exynos W1000 (3-nm) chipset, paired with 2 GB RAM and 32 GB storage. It runs Wear OS 6 (branded as “Wear OS Powered by Samsung” / One UI 8 Watch).

Connectivity and health features are comprehensive. Dual-frequency GPS (L1 + L5), Bluetooth 5.3, WiFi (2.4GHz & 5GHz), NFC, and LTE support (on select models) are included. For health monitoring, the device uses Samsung’s BioActive Sensor suite (optical heart rate, ECG, bioelectrical impedance analysis for body composition), plus barometer, gyro, geomagnetic sensor, and infra-red skin temperature sensor. It is rated 5 ATM + IP68 water/dust resistance and meets MIL-STD-810H durability standards. Battery capacity varies: the 40 mm version has a 325 mAh unit, while the 44 mm comes with a ~435mAh battery. Samsung lists up to ~40 hours of typical use; enabling Always-On Display reduces this.

Overall, the Galaxy Watch 8 is positioned as a premium all-round smartwatch: stylish enough for day-to-day wear, rugged enough for workouts, and full-featured with health, fitness, GPS, smart notifications, and LTE on supported models. Whether you pick the 40 mm size for a more discreet fit or the 44 mm for a larger view and slightly larger battery, you’re getting nearly the same feature set. It’s particularly compelling for Android users, especially those in the Samsung ecosystem.

Model Name: Samsung Galaxy Watch8
Available Sizes: 40mm and 44mm
Versions: Bluetooth/Wi-Fi and LTE
Colors Available: Graphite with Graphite Band, Silver with White Band
Case Material: Armor Aluminum
Display Protection: Sapphire Crystal

Dimensions and Weight

40mm Model:
Dimensions: 40.0 x 40.0 x 9.7 mm
Weight: 28.9 g (without strap)

44mm Model:
Dimensions: 44.0 x 44.0 x 9.7 mm
Weight: 33.8 g (without strap)

Display
40mm:
Type: Super AMOLED Full-Color Always-On Display
Size: 1.3 inches (33.5 mm)
Resolution: 432 x 432 pixels
44mm:
Type: Super AMOLED Full-Color Always-On Display
Size: 1.5 inches (37.3 mm)
Resolution: 480 x 480 pixels

Common Display Features:
Up to 3,000 nits brightness
Sapphire Crystal Glass
Always-On Display (AOD) mode
Touch and gesture support
Processor and Software
Processor: Samsung Exynos W1000 (3nm, 5-core)
Operating System: Wear OS 6 (Powered by Samsung, One UI Watch 8.0)
RAM: 2 GB
Internal Storage: 32 GB

Connectivity
Bluetooth 5.3
Wi-Fi 2.4 GHz & 5 GHz
NFC (Samsung Pay, Google Wallet)
GPS, GLONASS, GALILEO, BeiDou
LTE (select models)
eSIM support on LTE versions

Sensors
Samsung BioActive Sensor (Optical Heart Rate + Electrical Heart Sensor + Bioelectrical Impedance Sensor)
Accelerometer
Gyroscope
Barometer
Geomagnetic Sensor
Skin Temperature Sensor (Infrared)
Ambient Light Sensor
Health and Fitness Features
24/7 Heart Rate Monitoring
ECG (Electrocardiogram)
Blood Oxygen (SpO₂) Measurement
Sleep Tracking with Sleep Coaching
Body Composition (BIA) Analysis

Stress Tracking
Skin Temperature Tracking
Cycle Tracking
Step, Distance, and Calorie Tracking
Over 100 Workout Modes with Auto Workout Detection
Personalized Heart Rate Zones
Fall Detection and Emergency SOS
Battery and Charging

40mm:
Battery Capacity: 300 mAh
Typical Use Time: Up to 40 hours (without Always-On Display)
Fast Charging: Up to 45% charge in 30 minutes

44mm:
Battery Capacity: 425 mAh
Typical Use Time: Up to 45 hours (without Always-On Display)
Fast Charging: Wireless WPC-based charging

Compatibility
Android 11 or higher (with Google Mobile Services)
Samsung Galaxy Wearable app required
Not compatible with iOS devices

Durability
Water Resistance: 5 ATM (up to 50 meters)
IP68 Rating (dust and water resistance)
MIL-STD-810H Certified for durability
Operating Temperature: -20°C to 50°C

Smart Features
Google Assistant and Samsung Bixby
Google Maps, Messages, and Play Store Access
Notifications for Calls, Texts, and Apps
Bluetooth Calling (via built-in mic and speaker)
Samsung Pay / Google Wallet Support
Music Playback (Offline Storage and Streaming Support)
Find My Phone and Find My Watch
Do Not Disturb, Theater, and Sleep Modes

Materials and Design
Case: Armor Aluminum
Display Glass: Sapphire Crystal
Strap: Fluoroelastomer (soft silicone-type material)
Band Width: 20mm (40mm model), 22mm (44mm model)
Bands: Interchangeable quick-release mechanism

In the Box
Samsung Galaxy Watch8
Magnetic Wireless Charger
Quick Start Guide