Samsung Galaxy S21 Ultra vs Samsung Galaxy Z Fold 4 Specs Comparison

Compare mobile phone specifications of up to three devices at once. Our specs comparison tool helps you find and compare the perfect phone for your needs.

9.1	6.4
Samsung Galaxy S21 Ultra	Samsung Galaxy Z Fold 4
Released · Jan 29, 2021	Released · Aug 26, 2022
6.8-inch · 3200x1440px	7.6-inch · 2176x1812px
Quad camera	Triple camera
12GB · 128GB	12GB · 256GB
5000 mAh	4400 mAh
Check prices	Check prices

Availability

Officially announced
Jan 14, 2021	Aug 10, 2022
Prices (MSRP)
$1200 \| €1399	$1799

Design

Dimensions
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)	6.11 x 5.12 x 0.25 inches 155.1 x 130.1 x 6.3 mm
Folded
	6.1062992 x2.64 x0.62 inches (155.1 x 67.1 x 15.8 mm)
Weight
8.04 oz / 229.0 g	9.28 oz / 263.0 g
Materials
Back: Glass (Corning Gorilla Glass Victus) Frame: Aluminum	Back: Glass Frame: Aluminum
Resistance
Water, Dust; IP68	Water; IPX8
Biometrics
2D Face unlock, Ultrasonic in-screen fingerprint	Fingerprint (touch)
Keys
Right: Volume control, Lock/Unlock key	Right: Volume control, Lock/Unlock key
Colors
Phantom black, Silver	Graygreen, Phantom Black, Beidge

Display

Size
6.8-inch, 89.33% screen-to-body	7.6-inch, 90.79% screen-to-body
Type
Dynamic AMOLED, 120Hz, HDR, 1500 nits	Dynamic AMOLED, 120Hz, HDR, 1200 nits
Resolution
3200x1440px, 20:9 ratio, 516 PPI	2176x1812px, 6:5 ratio, 373 PPI
Protection
Corning Gorilla Glass Victus
Features
	Folding inside the device, HDR support, Ambient light sensor, Proximity sensor
Front cover display
	6.2 inches 2316 x904 px Dynamic AMOLED 120Hz refresh rate, HDR support, Scratch-resistant glass (Corning Gorilla Glass Victus 2), Ambient light sensor, Proximity senso

PhoneArena Display Test

Bright Max (20% APL)
Untested	Untested
Bright Min
1.5 (Good)	0.8 (Excellent)

Learn more on our PhoneArena Display Test Results page.

Hardware

System chip
Snapdragon 888 SM8350 (5 nm)	Snapdragon 8+ Gen 1 SM8475 (4 nm)
Processor
Octa-core 1x2.84GHz Kryo 680 3x2.42GHz Kryo 680 4x1.80GHz Kryo 680	Octa-core 1x3.19GHz Cortex-X2 3x2.75GHz Cortex-A710 4x1.80GHz Cortex-A510
GPU
Adreno 660	Adreno 670
Memory
12GB (LPDDR5)/128GB (UFS 3.1) 12GB/256GB 16GB/512GB	12GB (LPDDR5)/256GB (UFS 3.1) 12GB/512GB 12GB/1024GB
Storage expansion
not expandable	not expandable
OS
Android (14, 13, 12, 11)	Android (14, 13, 12)

PhoneArena Performance Test

GeekBench 6 Single
1117	1388
GeekBench 6 Multi
3312	3950
3D Mark High
1963	2105
3D Mark Low
1179	1524

Learn more on our PhoneArena Performance Test Results page.

Battery

Type
5000 mAh, Li - Polymer	4400 mAh, Li - Polymer
Charging
Qualcomm Quick Charge 2.0, USB Power Delivery, Samsung Adaptive Fast Charging Qi and Powermat wireless charging, Reverse wireless charging	Fast charging Qi wireless charging, Reverse wired charging
Charge speed
Wired: 25.0W Wireless: 15.0W	Wired: 25.0W Wireless: 15.0W

Battery Life Estimate

6h 15min

Browsing

14h 43min

Video

8h 52min

Gaming

8h 40min

Battery Life Estimate

5h 44min

Browsing

12h 43min

Video

8h 47min

Gaming

7h 31min

Camera

Rear
Quad camera	Triple 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	50 MP (OIS, PDAF) Aperture size: F1.8 Focal length: 23 mm Sensor size: 1/1.56" Pixel size: 1.0 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	12 MP (Ultra-wide) Aperture size: F2.2 Focal Length: 12 mm Sensor size: 1/3.06" Pixel size: 1.12 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	10 MP (Telephoto) Aperture size: F2.4 Focal Length: 66 mm Sensor size: 1/3.94" Pixel size: 1.0 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	LED
Video recording
8K UHD (24 fps), 4K UHD (60 fps), 1080p (240 fps), 720p (960 fps) OIS, HDR, Hyperlapse, Video light, EIS	8K UHD (24 fps), 4K UHD (60 fps), 1080p (240 fps), 720p (960 fps)
Front
40 MP (PDAF, HDR) Video capture: 4K UHD (60 fps)	4 MP (Under-screen) Folded: 10 MP

N/A

Overall

N/A

Photo

N/A

Video

135

Overall

144

Photo

127

Video

Connectivity & Features

Bluetooth
5.1	5.2
WLAN
a,b,g,n,ac,Wi-Fi 6,dual-band MIMO, Wi-Fi Direct, Hotspot 802.11 a, b, g, n, ac, ax	a,b,g,n,ac,Wi-Fi 6 Wi-Fi Direct, Hotspot 802.11 a, b, g, n, ac, ax
USB
Type-C, USB 3.2	Type-C, USB 3.2
Sensors
Accelerometer, Gyroscope, Compass, Hall (for flip covers), Barometer, Ambient light sensor, Proximity sensor	Accelerometer, Gyroscope, Compass, Hall (for flip covers), Barometer, Ambient light sensor, Proximity sensor
Hearing aid compatible
M3/T3
Location
GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning	GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning
Other
NFC, ANT+	NFC

Multimedia

Headphones
No 3.5mm jack	No 3.5mm jack
Speakers
Earpiece, Multiple speakers	Earpiece, Multiple speakers
Features
32-Bit DAC, Dolby Atmos, aptX, Dolby Digital, Dolby Digital Plus
Screen mirroring
	Wireless screen share
Additional microphone(s)
	Noise cancellation

Cellular

5G Bands
n2, n5, n12, n25, n41, n66, n71, n77, n260, n261, SA, NSA, Sub-6, mmWave	n2, n5, n7, n8, n12, n20, n25, n28, n38, n40, n41, n66, n75, n77, n78, n258, n260, n261
4G (FDD) Bands
1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 30, 66, 71	1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 29, 30, 66, 71
4G (TDD) Bands
38, 39, 40, 41, 46, 48	38, 39, 40, 41, 46
3G Bands
1, 2, 4, 5, 8	1, 2, 4, 5, 8
Data Speed
LTE-A Pro Cat 20 (2000/150 Mbit/s)	LTE-A, HSDPA+ (4G) 42.2 Mbit/s
SIM type
Nano SIM	Dual Nano SIM + eSIM

Regulatory Approval

FCC approval
Date approved: Dec 22, 2020 FCC ID value: A3LSMG998U	Date approved: Apr 18, 2023 FCC ID value: A3LSMF936U
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	Head: 0.96 W/kg Body: 0.63 W/kg Simultaneous Transmission: 0.92 W/kg Wireless Router: 0.84 W/kg

Alternative variants

with 256GB storage


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

With 512GB internal storage


Memory	512GB

with 512GB storage


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

With 1TB internal storage


Memory	1024GB

for Europe


System chip	Samsung Exynos 2100 (5 nm)
Processor	Octa-core 1x2.91GHz Cortex-X1 3x2.81GHz Cortex-A78 4x2.2GHz 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

Links

Full specifications
Samsung Galaxy S21 Ultra Specs	Samsung Galaxy Z Fold 4 Specs
PhoneArena Review
Samsung Galaxy S21 Ultra Review	Samsung Galaxy Z Fold 4 Review
User Reviews
Samsung Galaxy S21 Ultra User Reviews	Samsung Galaxy Z Fold 4 User Reviews