The Samsung Galaxy Watch3 delivers advanced health monitoring in a classic design. This 41mm smartwatch features a rotating bezel for precise app navigation and a bright AMOLED display that's larger than previous models.
Built-in sensors track blood oxygen levels using red LEDs and infrared technology. The watch monitors sleep phases including REM and deep sleep cycles. Fall detection automatically sends SOS alerts with location data to emergency contacts.
Fitness tracking includes VO2 max measurement and advanced algorithms that analyse movement technique. The genuine leather strap combines elegance with durability. At just 50g, this lightweight watch offers comfortable all-day wear whilst tracking your health metrics.
The 247mAh lithium-ion battery typically lasts 2 to 2.5 days with normal use. Battery life depends on which features you activate - GPS tracking, always-on display and frequent health monitoring will reduce runtime. Many users charge every third morning to maintain sleep tracking functionality. The watch supports wireless charging and reaches full charge in approximately 2 hours.
The Galaxy Watch3 works best with Android devices running Android 7.0 or higher. Whilst basic connectivity with iPhones is possible through Samsung Galaxy Watch app, many advanced features like blood pressure monitoring, ECG and Samsung Pay won't function. For full feature access including health monitoring, you need a Samsung smartphone or Android device.
The Galaxy Watch3 has 5ATM water resistance plus IP68 rating, making it suitable for swimming in pools and shallow water activities. You can wear it whilst showering or washing hands. However, avoid hot water, saunas or high-pressure water activities as these can damage the seals. Salt water should be rinsed off promptly to prevent corrosion.
The SpO2 sensor uses red LEDs and infrared technology to estimate blood oxygen levels, but it's designed for fitness and wellness tracking rather than medical diagnosis. Accuracy can vary based on skin tone, movement and ambient light conditions. For medical concerns about oxygen levels, always consult healthcare professionals and use certified medical devices.
Yes, the Galaxy Watch3 uses standard 20mm quick-release straps that can be swapped without tools. Simply press the release buttons on the back of the watch case and slide out the strap. The watch is compatible with most 20mm watch bands including leather, metal, silicone and fabric options from Samsung and third-party manufacturers.
The Galaxy Watch3 can function independently for many features including fitness tracking, heart rate monitoring, music playback and offline apps. Built-in GPS works without phone connection for accurate distance tracking. However, you need phone connectivity for calls, messages, notifications and internet-dependent features. This is the Bluetooth-only model, not the LTE version.
The built-in accelerometer and gyroscope monitor sudden changes in movement patterns that indicate a fall. When detected, the watch vibrates and displays an alert asking if you're okay. If you don't respond within 60 seconds, it automatically sends SOS messages with GPS location to your emergency contacts. You can customise sensitivity settings and emergency contact list through the Samsung Health app.
The Galaxy Watch3 automatically recognises walking, running, cycling, swimming, rowing machine and elliptical trainer activities when you've been active for more than 10 minutes. It can manually track over 40 workout types including hiking, climbing, yoga, boating and strength training. The watch provides real-time coaching tips and measures metrics like VO2 max, calories burned and workout intensity.
Model Number | SM-R850NZSAEUE |
Display Size | 4.1 cm |
Display Type | AMOLED |
Case Size | 41mm |
Case Material | Stainless Steel |
Case Colour | Silver |
Strap Material | Genuine Leather |
Shape | Round |
Weight | 50g |
Dimensions | 4.25 x 4.1 x 1.13 cm |
Water Resistance | 5ATM + IP68 |
Battery Type | Lithium Ion |
Battery Capacity | 247 mAh |
Charging Method | Wireless Charging |
Operating System | Android |
Connectivity | Bluetooth, Wi-Fi, GPS |
Sensors | Accelerometer, Gyroscope, Heart Rate, SpO2 |
GPS | Built-in GPS |
Department | Unisex Adult |
Manufacturer | Samsung |
Date First Available | 5 August 2020 |
ASIN | B08FBKQJZ5 |
Strap Width | 20mm |
Supported Sports | Walking, Running, Cycling, Swimming, Hiking, Climbing, Yoga, Boating |
Health Monitoring | Heart Rate, Blood Oxygen, Sleep Tracking, Fall Detection |
Compatible OS | Android 7.0 or higher |