Samsung Galaxy S21 Ultra vs Samsung Galaxy Z Flip 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	6.0
Samsung Galaxy S21 Ultra	Samsung Galaxy Z Flip 4
Released · Jan 29, 2021	Released · Aug 26, 2022
6.8-inch · 3200x1440px	6.7-inch · 2640x1080px
108 MP Main · 40 MP Selfie	12 MP Main
12GB · 128GB	8GB · 128GB
5000 mAh	3700 mAh
Check prices

Display

Size
6.8-inch	6.7-inch
Resolution
3200x1440px, 20:9 ratio, 516 PPI	2640x1080px, 22:9 ratio, 426 PPI
Technology
Dynamic AMOLED	Dynamic AMOLED
Refresh rate
120Hz (adaptable)	120Hz
Screen-to-body
89.33 %	85.52 %
Peak brightness
1500 cd/m2 (nit)
Features
HDR support, Scratch-resistant glass (Corning Gorilla Glass Victus), Ambient light sensor, Proximity sensor	Folding inside the device, HDR support, Ambient light sensor, Proximity sensor
Front cover display
	1.9 inches 260 x512 px

Hardware

System chip
Qualcomm Snapdragon 888 SM8350 (5 nm)	Qualcomm Snapdragon 8+ Gen 1 SM8475
Processor
Octa-core 1x 2.84GHz Kryo 680 + 3x 2.42GHz Kryo 680 + 4x 1.80GHz Kryo 680 64-bit	Octa-core 1x 3.19GHz Cortex-X2 + 3x 2.75GHz Cortex-A710 + 4x 1.80GHz Cortex-A510
GPU
Adreno 660	Adreno 670
RAM
12GB (LPDDR5)	8GB (LPDDR5)
Internal storage
128GB (UFS 3.1), not expandable	128GB (UFS 3.1), not expandable
OS
Android (14, 13, 12, 11), One UI	Android (12)

Battery

Capacity
5000 mAh	3700 mAh
Type
Li - Polymer, Not user replaceable	Not user replaceable
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 wireless charging
Max 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 0min

Browsing

11h 40min

Video

7h 20min

Gaming

6h 31min

Camera

Rear
Quad camera	Dual 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	12 MP (OIS, PDAF) Aperture size: F1.8 Pixel size: 1.8 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	12 MP (Ultra-wide) Aperture size: F2.4 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
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
7680x4320 (8K UHD) (24 fps), 3840x2160 (4K UHD) (60 fps), 1920x1080 (Full HD) (240 fps), 1280x720 (HD) (960 fps) OIS, HDR, Hyperlapse, Video light, EIS	3840x2160 (4K UHD) (60 fps), 1920x1080 (Full HD) (240 fps), 1280x720 (HD)
Front
40 MP (PDAF, HDR), Video capture: 3840x2160 (4K UHD) (60 fps)	Yes Folded: 10 MP

N/A

Overall

N/A

Photo

N/A

Video

131

Overall

136

Photo

125

Video

Design

Dimensions
6.50 x 2.98 x 0.35 inches (165.1 x 75.6 x 8.9 mm) thickness with camera 0.37 inches (9.4 mm)	6.50 x 2.83 x 0.27 inches (165.2 x 71.9 x 6.9 mm)
Folded
	(84.9 x 71.9 x 17.1 mm)
Weight
8.04 oz(229.0 g)	6.60 oz(187.0 g)
Materials
Back: Glass (Corning Gorilla Glass Victus) Frame: Aluminum	Back: Glass Frame: Aluminum
Resistance
Water, Dust; IP68	Yes; IPX8
Biometrics
2D Face unlock, Ultrasonic in-screen fingerprint	Fingerprint (touch)
Keys
Right: Volume control, Lock/Unlock key	Left: Volume control, Lock/Unlock key
Colors
Phantom black, Silver

Cellular

5G
Bands n2, n5, n12, n25, n41, n66, n71, n77, n260, n261, SA, NSA, Sub-6, mmWave	Bands 5G Ready
4G (FDD)
Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 13(700 c), 14(700 PS), 18(800 Lower), 19(800 Upper), 20(800 DD), 25(1900+), 26(850+), 28(700 APT), 30(2300 WCS), 66(AWS-3), 71(600)
4G (TDD)
Bands 38(2600), 39(1900+), 40(2300), 41(2600+), 46, 48(3600)
3G
Bands 1(2100), 2(1900), 4(1700/2100), 5(850), 8(900)
Data Speed
LTE-A Pro Cat 20 (2000/150 Mbit/s)	LTE-A, HSDPA+ (4G) 42.2 Mbit/s
SIM type
Nano SIM	Nano SIM, eSIM

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	Wireless screen share
Radio
FM, Stereo, RDS
Additional microphone(s)
Noise cancellation, Video recording	Noise cancellation

Connectivity & Features

Bluetooth
5.1	5.2
Wi-Fi
802.11 a,b,g,n,ac,ax(Wi-Fi 6),dual-band MIMO, Wi-Fi Direct, Hotspot	802.11 a,b,g,n,ac Wi-Fi Direct, Hotspot
USB
Type-C (reversible), USB 3.2, Features: Charging, Headphones port, OTG, Video out	Type-C (reversible), Features: Charging
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
Sensors
Accelerometer, Gyroscope, Compass, Hall (for flip covers), Barometer	Accelerometer, Gyroscope, Compass, Hall (for flip covers)
Other
NFC, ANT+	NFC

Regulatory Approval

FCC approval
Date approved: Dec 22, 2020 FCC ID value: A3LSMG998U	Date approved: Apr 20, 2023 FCC ID value: A3LSMF721U
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: 0.89 W/kg Body: 0.94 W/kg Simultaneous Transmission: 1.59 W/kg Wireless Router: 1.06 W/kg

Buyers information

MSRP
$ 1200 / € 1399	$ 1000
In The Box
C to C Data Cable, Ejection Pin

Availability

Officially announced
Jan 14, 2021	Aug 10, 2022

Alternative variants

with 256GB storage


Internal storage	256GB
Colors	Phantom black
MSRP	$ 1250

With 512GB internal storage


Internal storage	512GB

with 512GB storage


RAM	16GB
Internal storage	512GB
Colors	Phantom black
MSRP	$ 1380

With 256GB internal storage


Internal storage	256GB

for Europe


System chip	Samsung Exynos 2100 (5 nm)
Processor	Octa-core 1x 2.91GHz Cortex-X1 + 3x 2.81GHz Cortex-A78 + 4x 2.2GHz Cortex-A55 64-bit
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 Flip 4 Specs
PhoneArena Review
Samsung Galaxy S21 Ultra Review	Samsung Galaxy Z Flip 4 Review
User Reviews
Samsung Galaxy S21 Ultra User Reviews