B2bSpecSheet

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product, service names and logos are trademarks and/or registered trademarks of their respective manufacturers and companies. See samsung.com for detailed information. Printed in USA. WER-WIFI-WATCH4DSHT-AUG21T
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1
All participants must have the latest version of the Samsung Health app, downloadable via Galaxy Store and/or Google Play Store.
2
Accurate VO₂ max reading requires running outdoors for at least 20 minutes with GPS on. Consult user manual
before use. VO₂ max software functions are not intended for use in the diagnosis of disease or other conditions, or in the cure, mitigation, treatment or prevention of disease.
3
The SpO₂ measurement software is not intended for use in the
diagnosis of disease or other conditions, or in the cure, mitigation, treatment or prevention of disease.
4
The snoring measurement requires smartphone with Android 6.0 or later, 1.5GB of RAM, phone within 2 feet of user, with snore detection
enabled through Samsung Health app version 6.18 or higher.
5
Compatible with select Bluetooth-capable smartphones running Android 6.0 or higher and RAM above 1.5GB. Galaxy Watch4 supported features may vary by carrier and compatible
device. For a list of compatible smartphones and features, please visit samsung.com/global/galaxy/galaxy-watch/devicecompatibility. For best results, connect with compatible Samsung Galaxy smartphones.
6
Select interchangeable watch
bands sold separately.
Galaxy Watch4 Wi-Fi Galaxy Watch4 Wi-Fi
Product Number
44mm
Black SM-R870NZKAXAA
Silver SM-R870NZSAXAA
Green SM-R870NZGAXAA
40mm
Black SM-R860NZKAXAA
Silver SM-R860NZSAXAA
Pink Gold SM-R860NZDAXAA
Colors
Case Case Case
Green Black Silver
Band Band Band
Green Black Silver
Case Case Case
Silver Black Pink Gold
Band Band Band
BlackWhite Pink Gold
Band
Sports Band
M/L: 0.79" x 5.11" x 0.37"
(20.0mm x 130.0mm x 9.4mm)
Sports Band
S/M: 0.79" x 4.53" x 0.37"
(20.0mm x 115.0mm x 9.4mm)
Display
1.4" (450px x 450px), 330ppi
Corning
®
Gorilla
®
Glass DX+
1.2" (396px x 396px), 330ppi
Corning
®
Gorilla
®
Glass DX+
OS
Wear OS powered by Samsung Wear OS powered by Samsung
Memory
1.5GB RAM
16GB internal storage
1.5GB RAM
16GB internal storage
Connectivity
Wi-Fi 802.11 b/g/n, 2.4GHz and 5GHz
Bluetooth v5.0, NFC, A2DP, AVRCP, HFP, HSP, GPS,
Glonass, Beidou, Galileo
Wi-Fi 802.11 b/g/n, 2.4GHz and 5GHz
Bluetooth v5.0, NFC, A2DP, AVRCP, HFP, HSP, GPS,
Glonass, Beidou, Galileo
Battery
361mAh 247mAh
Dimensions
1.79" x 1.79" x 0.43"
(44.4mm x 43.3mm x 9.8mm)
1.63" x 1.63" x 0.44"
(40.4mm x 39.3mm x 9.8mm)
Weight
1.07 oz. (30.3g) 1.6 oz. (25.9g)
Sensors
Accelerometer, Barometer, Gyro Sensor, Geomagnetic
Sensor, Light Sensor, Optical Heart Rate Sensor, Electrical
heart sensor, Bioelectrical Impedance Analysis Sensor
Accelerometer, Barometer, Gyro Sensor, Geomagnetic
Sensor, Light Sensor, Optical Heart Rate Sensor, Electrical
heart sensor, Bioelectrical Impedance Analysis Sensor
Durability
5ATM / IP68 / MIL-STD-810G 5ATM / IP68 / MIL-STD-810G
Material
Aluminum Aluminum
Physical User
Interface
2 buttons + digital bezel 2 buttons + digital bezel
Miscellaneous
Mic, motor, speaker Mic, motor, speaker