Samsung Galaxy Watch 4 Classic (46mm) vs Samsung Galaxy S21 Ultra Specs Comparison

Availability

Officially announced
	Jan 14, 2021
Prices (MSRP)
	$1200 | €1399

Design

Dimensions
1.79 x 1.79 x 0.43 inches 45.5 x 45.5 x 11 mm	6.50 x 2.98 x 0.35 inches (~0.37 inches with camera bump) 165.1 x 75.6 x 8.9 mm (~9.4 mm with camera bump)
Weight
1.76 oz / 50.0 g	8.04 oz / 229.0 g
Materials
	Back: Glass (Corning Gorilla Glass Victus) Frame: Aluminum
Materials & Colors
Black, White, Silver
Resistance
Water (up to 50 meters), Dust; IP68; MIL-STD-810 certified	Water, Dust; IP68
Biometrics
	2D Face unlock, Ultrasonic in-screen fingerprint
Keys
	Right: Volume control, Lock/Unlock key
Colors
	Phantom black, Silver

Display

Size
1.4-inch, 28.86% screen-to-body	6.8-inch, 89.33% screen-to-body
Type
Super AMOLED	Dynamic AMOLED, 120Hz, HDR, 1500 nits
Resolution
450x450px, 468 PPI	3200x1440px, 20:9 ratio, 516 PPI
Protection
Corning Gorilla Glass DX+	Corning Gorilla Glass Victus

PhoneArena Display Test

Bright Max (20% APL)
Untested	Untested
Bright Min
Untested	1.5 (Good)

Learn more on our PhoneArena Display Test Results page.

Hardware

System chip
Exynos W920 (5 nm)	Snapdragon 888 SM8350 (5 nm)
Processor
Dual-core 1180 MHz Cortex-A55	Octa-core 1x2.84GHz Kryo 680 3x2.42GHz Kryo 680 4x1.80GHz Kryo 680
GPU
Mali-G68	Adreno 660
Memory
1.5GB/16GB	12GB (LPDDR5)/128GB (UFS 3.1) 12GB/256GB 16GB/512GB
Storage expansion
	not expandable
OS
Wear OS	Android (14, 13, 12, 11)
Compatible devices
Smartphones with Android 6.0 or later with more than 1.5GB of RAM

PhoneArena Performance Test

GeekBench 6 Single
Untested	1117
GeekBench 6 Multi
Untested	3312
3D Mark High
Untested	1963
3D Mark Low
Untested	1179

Learn more on our PhoneArena Performance Test Results page.

Battery

Type
361 mAh, Li - Ion	5000 mAh, Li - Polymer
Charging
Qi wireless charging	Qualcomm Quick Charge 2.0, USB Power Delivery, Samsung Adaptive Fast Charging Qi and Powermat wireless charging, Reverse wireless charging
Charge speed
	Wired: 25.0W Wireless: 15.0W

PhoneArena Battery Tests

Battery Life Estimate

Untested

Browsing

Untested

Video

Untested

Gaming

Untested

Battery Life Estimate

6h 15min

Browsing

14h 43min

Video

8h 52min

Gaming

8h 40min

Learn more on our PhoneArena Battery Test Results page

Camera

Rear
	Quad camera
Main camera
	108 MP (OIS, Laser and PDAF) Aperture size: F1.8 Focal length: 24 mm Sensor size: 1/1.33" Pixel size: 0.8 μm
Second camera
	12 MP (Ultra-wide, PDAF) Aperture size: F2.2 Focal Length: 13 mm Sensor size: 1/2.55" Pixel size: 1.4 μm
Third camera
	10 MP (Telephoto, OIS, PDAF) Optical zoom: 3.0x Aperture size: F2.4 Focal Length: 70 mm Sensor size: 1/3.2" Pixel size: 1.22 μm
Fourth camera
	10 MP (Telephoto, Periscope, OIS, PDAF) Optical zoom: 3.0x Aperture size: F2.4 Focal Length: 70 mm Sensor size: 1/3.2" Pixel size: 1.22 μm
Flash
	LED
Video recording
	8K UHD (24 fps), 4K UHD (60 fps), 1080p (240 fps), 720p (960 fps) OIS, HDR, Hyperlapse, Video light, EIS
Front
	40 MP (PDAF, HDR) Video capture: 4K UHD (60 fps)

Connectivity & Features

Bluetooth
5.0	5.1
WLAN
a,b,g,n,ac,dual-band 802.11 a, b, g, n, ac	a,b,g,n,ac,Wi-Fi 6,dual-band MIMO, Wi-Fi Direct, Hotspot 802.11 a, b, g, n, ac, ax
USB
	Type-C, USB 3.2
Sensors
Accelerometer, Gyroscope, Altimeter, Compass, Heart rate, Barometer, ECG, Blood Oxygen, Ambient light sensor	Accelerometer, Gyroscope, Compass, Hall (for flip covers), Barometer, Ambient light sensor, Proximity sensor
Hearing aid compatible
	M3/T3
Location
GPS, Glonass, Galileo, BeiDou	GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning
Other
NFC	NFC, ANT+

Multimedia

Headphones
	No 3.5mm jack
Speakers
Loudspeaker	Earpiece, Multiple speakers
Features
	32-Bit DAC, Dolby Atmos, aptX, Dolby Digital, Dolby Digital Plus

Cellular

5G Bands
	n2, n5, n12, n25, n41, n66, n71, n77, n260, n261, SA, NSA, Sub-6, mmWave
4G (FDD) Bands
	1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 30, 66, 71
4G (TDD) Bands
	38, 39, 40, 41, 46, 48
3G Bands
	1, 2, 4, 5, 8
Data Speed
	LTE-A Pro Cat 20 (2000/150 Mbit/s)
SIM type
	Nano SIM

Regulatory Approval

FCC approval
	Date approved: Dec 22, 2020 FCC ID value: A3LSMG998U
Measured SAR
	Head: 0.77 W/kg Body: 1.02 W/kg Simultaneous Transmission: 1.59 W/kg Wireless Router: 1.16 W/kg Phablet: 3.15 W/kg

Alternative variants

with 256GB storage

Memory	256GB
Colors	Phantom black
Prices (MSRP)	$1250

with 512GB storage

Memory	16GB/512GB
Colors	Phantom black
Prices (MSRP)	$1380

for Europe

System chip	Samsung Exynos 2100 (5 nm)
Processor	Octa-core 1x2.91GHz Cortex-X1 3x2.81G​Hz Cortex-A78 4x2.2G​Hz Cortex-A55
GPU	Mali G78 MP14
Weight	8.01 oz / 227.0 g
5G Bands	SA, NSA, Sub-6
FCC approval	Date approved: Dec 22, 2020 FCC ID value: A3LSMG998B
Measured SAR	Head: 0.16 W/kg Body: 0.72 W/kg Simultaneous Transmission: 1.59 W/kg Wireless Router: 1.34 W/kg Phablet: 3.86 W/kg

Discover more

Full Specs Samsung Galaxy Watch 4 Classic (46mm) Specs

Full Specs Samsung Galaxy S21 Ultra Specs PA Review Samsung Galaxy S21 Ultra Review