Feature:

• Better Sleep Starts Here: Wake up feeling refreshed and recharged with advanced sleep tracking; When you go to bed, your Galaxy Watch 4 sleep tracker starts monitoring your sleep and SpO2 levels continuously.
• Be Smart About Your Heart: Take care of your heart with accurate ECG monitoring and keep an eye on possible atrial fibrillation, a common form of irregular heart rhythm; Share personalized readings with your doctor using the Samsung Health Monitor app on your compatible Galaxy phone.
• Make Every Workout Count: Get the most out of every exercise session with advanced workout tracking that recognizes 6 popular activities, from running to rowing to swimming, automatically in just 3 minutes*; Stay motivated by connecting to live coaching sessions via your smartphone or to dynamic Group Challenges with your friends.
• Go the Extra Mile: Improve your runs with advanced running coaching technology; VO2 Max readings assess your oxygen levels to manage and track your heart and lung endurance.
• Do More Right From Your Wrist: Galaxy Watch4 works as an extension of your phone so you can talk, stream, and text from your wrist on the go.
• Google on Your Wrist: Tap into the power and convenience of select Google services and apps; Pay for coffee, get directions to the park, use Google Assistant or Bixby, and stream from YouTube Music.
• Timeless Design, Elevated Style: Show of your style with a luxurious and timeless watch design that’s great for any occasion; Personalize your look even more with a range of stylish watch faces and bands.

General parameters

• Brand: Samsung
• Product: Smartwatch
• Name: Watch4
• Model: SM-R870NZ

Screen

• Size: 1.36 inches
• Type: Super AMOLED
• Resolution: 450 x 450 pixels
• Density: 330 ppi
• Other features: Gorilla Glass DX

Technical parameters

• Chip: Samsung Exynos W920 5 nm
• RAM memory: 1.5 GB
• Storage memory: 16 GB
• Operating system: WearOS with One UI Watch
• Battery: 361 mAh

Connectivity

• WiFi 2.4 + 5 GHz
• Bluetooth 5.0
• NFC
• GPS

Sensors

• Bio Active Sensor (PPG)
• Electrocardiogram (ECG)
• Bioelectrical impedance analysis (BIA) sensor
•  Accelerometer
•  Barometer
•  Gyroscope
•  Geomagnetic
• Ambient light

Physical parameters

• Strap: Sport Band – Silicone (Replaceable)
• Degree of waterproofing: IP68
• Dimensions: 44.4 x 43.3 x 9.8 mm
• Weight: 30.3 g