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Samsung Galaxy Z Flip 3 vs Samsung Galaxy S21 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.

Comparison mode:
Specs Size
Differences only
8.0
Samsung Galaxy Z Flip 3
8.5
Samsung Galaxy S21
Samsung Galaxy Z Flip 3 Samsung Galaxy S21
Released · Aug 27, 2021
Released · Jan 29, 2021
6.7-inch · 2636x1080px
6.2-inch · 2400x1080px
Dual camera
Triple camera
8GB · 128GB
8GB · 128GB
3300 mAh
4000 mAh
Check prices Check prices

Design

Dimensions
6.54 x 2.84 x 0.27 inches (~0.33 inches with camera bump)
166 x 72.2 x 6.9 mm (~8.3 mm with camera bump) 		5.97 x 2.80 x 0.31 inches
151.7 x 71.2 x 7.9 mm
Folded
2.84 x3.40 x0.62 inches (72.2 x 86.4 x 15.9 mm)
Weight
6.46 oz (183.0 g) 6.03 oz (171.0 g)
Materials
Back: Glass (Corning Gorilla Glass Victus)
Frame: Aluminum 		Back: Plastic
Frame: Aluminum
Resistance
Dust; IPX8 Water, Dust; IP68
Biometrics
Fingerprint (touch) 2D Face unlock, Ultrasonic in-screen fingerprint
Keys
Right: Volume control, Lock/Unlock key Right: Volume control, Lock/Unlock key
Colors
Phantom Black, Cream, Lavender Phantom pink, Violet, Gray, White

Display

Size
6.7-inch 6.2-inch
Resolution
2636x1080px, 22:9 ratio, 425 PPI 2400x1080px, 20:9 ratio, 424 PPI
Technology
Dynamic AMOLED Dynamic AMOLED
Refresh rate
120Hz 120Hz (adaptive)
Screen-to-body
84.79 % 86.06 %
Peak brightness
1200 cd/m2 (nit) 1300 cd/m2 (nit)
Features
Folding inside the device, HDR support, Ambient light sensor, Proximity sensor HDR support, Scratch-resistant glass (Corning Gorilla Glass Victus), Ambient light sensor, Proximity sensor
Front cover display
1.9 inches
260 x512 px
AMOLED
HDR support, Ambient light sensor, Proximity senso

Hardware

System chip
Qualcomm Snapdragon 888 SM8350 (5 nm) Qualcomm Snapdragon 888 (5 nm)
Processor
Octa-core
1x 2.84GHz Kryo 680 + 3x 2.42GHz Kryo 680 + 4x 1.80GHz Kryo 680 		Octa-core
1x 2.84GHz Kryo 680 + 3x 2.42GHz Kryo 680 + 4x 1.80GHz Kryo 680
GPU
Adreno 660 Adreno 660
RAM
8GB (LPDDR5) 8GB (LPDDR5)
Internal storage
128GB (UFS 3.1) 128GB (UFS 3.0)
Storage expansion
not expandable not expandable
OS
Android (14, 13, 12, 11), One UI Android (13, 12, 11), Samsung One UI

Battery

Capacity
3300 mAh 4000 mAh
Type
Li - Polymer Li - Polymer
Charging
Fast charging, Qi wireless charging, Reverse wired charging Qualcomm Quick Charge 2.0, USB Power Delivery, Samsung Adaptive Fast Charging, Qi and Powermat wireless charging, Reverse wireless charging
Charge speed
Wired: 15.0W
Wireless: 10.0W 		Wired: 25.0W
Wireless: 15.0W
PhoneArena Battery Tests
Battery Life Estimate
Untested
Browsing
10h 13min
Video
7h 10min
Gaming
Untested
Battery Life Estimate
4h 28min
Browsing
7h 47min
Video
7h 36min
Gaming
7h 9min
Learn more on our PhoneArena Battery Test Results page

Camera

Rear
Dual camera Triple camera
Main camera
12 MP (OIS, Autofocus)
Aperture size: F1.8
Focal length: 27 mm
Sensor size: 1/2.55"
Pixel size: 1.4 μm 		12 MP (OIS, PDAF)
Aperture size: F1.8
Focal length: 26 mm
Sensor size: 1/1.76"
Pixel size: 1.8 μm
Second camera
12 MP (Ultra-wide)
Aperture size: F2.2
Pixel size: 1.12 μm 		12 MP (Ultra-wide, Autofocus)
Aperture size: F2.2
Focal Length: 13 mm
Sensor size: 1/2.55"
Pixel size: 1.4 μm
Third camera
64 MP (Telephoto, OIS, PDAF)
Aperture size: F2.0
Focal Length: 29 mm
Sensor size: 1/1.7"
Pixel size: 0.8 μm
Flash
LED LED
Video recording
Yes
HDR, Continuous autofocus, Picture-taking during video recording 		7680x4320 (8K UHD) (24 fps), 3840x2160 (4K UHD) (60 fps), 1920x1080 (Full HD) (240 fps), 1280x720 (HD) (960 fps)
OIS, HDR, Hyperlapse, Continuous autofocus, Video light, EIS
Front
10 MP (Autofocus, HDR), Video capture: 3840x2160 (4K UHD) (30 fps) 10 MP (PDAF, HDR), Video capture: 3840x2160 (4K UHD) (60 fps)

Connectivity & Features

Bluetooth
5.1 5.0
WLAN
802.11 a,b,g,n,ac
Wi-Fi Direct, Hotspot 		802.11 a,b,g,n,ac,ax(Wi-Fi 6),dual-band
MIMO, Wi-Fi Direct, Hotspot
USB
Type-C, USB 3.1 Type-C, USB 3.2
Hearing aid compatible
M3/T4 M3/T3
Location
GPS, A-GPS, Glonass, Galileo, BeiDou 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), Barometer
Other
NFC NFC, ANT+

Multimedia

Headphones
No 3.5mm jack No 3.5mm jack
Speakers
Earpiece, Multiple speakers Earpiece, Multiple speakers
Features
aptX, aptX-HD 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 Noise cancellation, Video recording

Cellular

5G
Bands n2, n5, n25, n41, n66, n71, n260, n261, SA, NSA, Sub-6, mmWave Bands n2, n5, n12, n25, n41, n66, n71, n77, n260, n261, SA, NSA, Sub-6, mmWave
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) 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) 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) Bands 1(2100), 2(1900), 4(1700/2100), 5(850), 8(900)
Data Speed
LTE-A Pro Cat 20 (2000/150 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s, UMTS
SIM type
Nano SIM Nano SIM

Regulatory Approval

FCC approval
Date approved: Jun 23, 2021
FCC ID value: A3LSMF711U 		Date approved: Dec 08, 2020
FCC ID value: A3LSMG991U
Measured SAR
Head: 1.05 W/kg
Body: 1.08 W/kg
Simultaneous Transmission: 1.59 W/kg
Wireless Router: 1.21 W/kg 		Head: 0.36 W/kg
Body: 1.08 W/kg
Simultaneous Transmission: 3.96 W/kg
Wireless Router: 1.09 W/kg
Phablet: 2.49 W/kg

Buyers information

MSRP
$ 999 / € 1099 $ 800
In The Box
C to C Data Cable, Ejection Pin

Availability

Officially announced
Aug 11, 2021 Jan 14, 2021

Alternative variants

With 256GB internal storage
Internal storage 256GB
with 256GB storage
Internal storage 256GB
With Dual SIM
Dual SIM Yes
SIM type Nano SIM, eSIM
for Europe
System chip Samsung Exynos 2100 (5 nm)
Processor Octa-core
2900 MHz
1x 2.91GHz Cortex-X1 + 3x 2.81GHz Cortex-A78 + 4x 2.2GHz Cortex-A55
GPU Mali G78 MP14
Weight 5.96 oz (169.0 g)
5G Bands SA, NSA, Sub-6
FCC approval Date approved: Dec 18, 2020
FCC ID value: A3LSMG991B
Measured SAR Head: 0.42 W/kg
Body: 0.94 W/kg
Simultaneous Transmission: 3.96 W/kg
Wireless Router: 1.34 W/kg
Phablet: 2.37 W/kg
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