Grade AA+ Samsung Galaxy Watch 4 SM-R865U LTE/Bluetooth/Wi-Fi 40MM Smartwatch - Black

Body Composition Analysis

Get ready to crush your wellness goals with body readings right on your wrist.

Advanced Sleep / Continuous SpO2

Manage your overall sleep quality for a great night's sleep with an advanced tracker that calculates your sleep score.

ECG

Be smart about your heart with ECG Monitoring that gives accurate readings.

Fitness / Auto Workout Tracking

Make the most of every workout with Auto Workout Tracking. Stay motivated by connecting to live coaching sessions via your smartphone or to dynamic Group Challenges with your friends.

V02 Max / Advanced Run Coaching

Make the most out of every mile with Advanced Run Coaching and VO2 max readings to assess your cardio levels.

Extension of Your Phone

Stay in stride while staying connected to calls, text and music on the go.

Upgraded OS (GSuiteApps)

Tap into the power and convenience of select Google services and apps on your wrist.

LTE Connectivity

No phone or Wi-Fi? No problem. Stay connected wherever your workout takes you, thanks to LTE connectivity.

Sleek and Lightweight Design

Look great while crushing every part of your day with the sleek, lightweight and customizable design.

Group Challenges

Get moving and motivated with your family and friends. Join the fitness fun with activities and challenges designed just for groups.

Trip Detection

Get peace of mind while on the go with Trip Detection that sends an SOS to your emergency contact in the event of a hard fall.

Women’s Health

Galaxy Watch4 helps women build a deeper connection with their bodies and their health by helping to log and track fertility windows, ovulation cycles and periods.

Samsung Health

Samsung Health helps you stay on top of your health, your goals and upcoming fitness needs.

Payments

Tap. Pay. Go. Samsung Pay and Google Pay make quick stops even quicker.

SmartThings

Cool down the house as you cool down from your workout with a tap of your wrist.

Ecosystem

Breeze through your fitness goals by pairing your compatible Galaxy devices and by connecting to your fitness community.

SPECIFICATIONS : 

Screen Size : 40 millimeters
Touch Screen : Yes
Operating System Compatibility : Android
Operating System : Android
App Compatible : Yes
Carrier : Unlocked
Global Positioning : GLONASS, GPS, Galileo
Metrics Measured : Blood oxygen, Blood pressure, Electrocardiography, Heart rate
Water Resistant : Yes
Maximum Depth of Water Resistance : 164 feet
Band Material : Fluoroelastomer
Series : LTE
Case Size : 40mm
Case Shape : Round
Band Type : Sport Band
Band Width : 0.79 millimeters
Display Screen : Yes
Touch Screen : Yes
Display Type : AMOLED
Color Display : Yes
Clock Display : Yes
Backlit Display : No
Adjustable Brightness : Yes
Customizable Watch Faces : Yes 
Operating System Compatibility : Android
Operating System : Android
App Compatible : Yes
Works With : Google Assistant, SmartThings
Voice Assistant Built-in : Bixby, Google Assistant
Bluetooth Enabled : Yes
Bluetooth Version : 5.0
NFC Technology : Yes
Wi-Fi Compatibility : Wireless A, Wireless B, Wireless G, Wireless N
Mobile Notifications : Yes
Alert Type : Audible, Vibration, Visual
Mobile Payment Service Supported : Samsung Pay, Google Pay
Music Player : Yes
Silent Alarm : Yes
Vibration Alert : Yes
Built-In Microphone : Yes
Voice Activated : Yes
Metrics Measured : Blood oxygen, Blood pressure, Electrocardiography, Heart rate
Sensors : Accelerometer, Barometer, Gyro sensor, Geomagnetic sensor, Ambient light sensor, Heart rate sensor
Medical Incident Notification : 911/EMS, App alert, Contact call, Contact text
Water Resistant : Yes
Maximum Depth of Water Resistance : 164 feet
Shock Resistant : Yes
Maximum Height of Shock Resistance : 4.92 feet
Dust Resistant : Yes
Minimum Operating Temperature : 32 degrees fahrenheit
Maximum Operating Temperature : 95 degrees fahrenheit
Rechargeable : Yes
Battery Strength Indicator : Yes
Charging Time : 110 minutes
Charging Interface(s) : Wireless
Battery Type : Lithium-ion
Replaceable Battery : No
Band Material : Fluoroelastomer
Case Material : Aluminum
Integrated Camera : No
Band Size : Adjustable