Samsung Galaxy Watch4

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Full Specifications September 4, 2026

Samsung · 2021

Samsung Galaxy Watch4

Name: Samsung Galaxy Watch4
Brand: Samsung

Samsung Galaxy Watch4 Android watch. Announced Aug 2021. Features 1.4″ display, Exynos W920 chipset, 361 mAh battery, 16 GB storage, 1.5 GB RAM, MIL-STD-810G compliant, Corning Gorilla Glass DX+.

Display 1.4"

Chipset Exynos W920

RAM 1.5 GB

Storage 16GB storage, no card slot

Battery 361 mAh

OS Android Wear OS 4, up to 6.0, One UI Watch 8

Build 30.3g (44mm), 25.9g (40mm), 9.8mm thickness

Launch

Announced 2021, August 11

Status Available. Released 2021, August 27

Platform

OS Android Wear OS 4, upgradable to 6.0, One UI Watch 8

Chipset Exynos W920 (5 nm)

CPU Dual-core 1.18 GHz Cortex-A55

GPU Mali-G68

Display

Type Super AMOLED

Size 1.4 inches

Resolution 450 x 450 pixels (~321 ppi density)

Protection Corning Gorilla Glass DX+

Memory

Card slot No

Internal 16GB 1.5GB RAM

Camera

cam1modules No

Body

Dimensions 44.4 x 43.3 x 9.8 mm (1.75 x 1.70 x 0.39 in)

Weight 30.3 g (44mm), 25.9 g (40mm) (1.06 oz)

Build Glass front (Gorilla Glass DX+), aluminum frame

SIM eSIM

bodyother MIL-STD-810G compliant* IP68 dust tight and water resistant (immersible up to 50m) Compatible with standard 20mm straps ECG certified Blood pressure monitor *does not guarantee ruggedness or use in extreme conditions

Battery

Type Li-Ion 361 mAh

Charging Wireless

Sound

Loudspeaker Yes

3.5mm jack No

Comms

WLAN Wi-Fi 802.11 a/b/g/n, dual-band

Bluetooth 5.0, A2DP, LE

Positioning GPS, GLONASS, GALILEO, BDS

NFC Yes

Radio No

USB No

Network

Technology GSM / HSPA / LTE

2G bands GSM 850 / 900 / 1800 / 1900

3G bands HSDPA 850 / 900 / 2100

4G bands 1, 3, 5, 7, 8, 20

Speed HSPA, LTE

Features

Sensors Accelerometer, gyro, compass, barometer, heart rate, SpO2

Misc

Colors Black, Pink Gold, Silver, Green, Thom Browne Edition, Bespoke Edition, PXG Golf Edition

Models SM-R860, SM-R870

In depth

Full specifications

Announced	2021, August 11
Status	Available. Released 2021, August 27

OS	Android Wear OS 4, upgradable to 6.0, One UI Watch 8
Chipset	Exynos W920 (5 nm)
CPU	Dual-core 1.18 GHz Cortex-A55
GPU	Mali-G68

Type	Super AMOLED
Size	1.4 inches
Resolution	450 x 450 pixels (~321 ppi density)
Protection	Corning Gorilla Glass DX+

Card slot	No
Internal	16GB 1.5GB RAM

cam1modules	No

Dimensions	44.4 x 43.3 x 9.8 mm (1.75 x 1.70 x 0.39 in)
Weight	30.3 g (44mm), 25.9 g (40mm) (1.06 oz)
Build	Glass front (Gorilla Glass DX+), aluminum frame
SIM	eSIM
bodyother	MIL-STD-810G compliant* IP68 dust tight and water resistant (immersible up to 50m) Compatible with standard 20mm straps ECG certified Blood pressure monitor *does not guarantee ruggedness or use in extreme conditions

Type	Li-Ion 361 mAh
Charging	Wireless

Loudspeaker	Yes
3.5mm jack	No

WLAN	Wi-Fi 802.11 a/b/g/n, dual-band
Bluetooth	5.0, A2DP, LE
Positioning	GPS, GLONASS, GALILEO, BDS
NFC	Yes
Radio	No
USB	No

Technology	GSM / HSPA / LTE
2G bands	GSM 850 / 900 / 1800 / 1900
3G bands	HSDPA 850 / 900 / 2100
4G bands	1, 3, 5, 7, 8, 20
Speed	HSPA, LTE

Sensors	Accelerometer, gyro, compass, barometer, heart rate, SpO2

Colors	Black, Pink Gold, Silver, Green, Thom Browne Edition, Bespoke Edition, PXG Golf Edition
Models	SM-R860, SM-R870
Price	About 110 EUR

PhoneInsight Benchmark

25.7/100

Entry-level

A specs-derived composite score, not a lab benchmark -- useful for ranking and comparison.

Processor 26.5

Display 47.9

Battery 20.7

0.6%Popularity rank

1,724,619 hitsTotal views

Samsung Galaxy Watch4

Launch

Platform

Display

Memory

Camera

Body

Battery

Sound

Comms

Network

Features

Misc

Full specifications

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