Samsung Galaxy Z Fold 3 vs Samsung Galaxy S21 Specs Comparison

Availability

Officially announced
Aug 11, 2021	Jan 14, 2021
Prices (MSRP)
$1799 | €1899	$800

Design

Dimensions
6.23 x 5.04 x 0.25 inches (~0.30 inches with camera bump) 158.2 x 128.1 x 6.4 mm (~7.7 mm with camera bump)	5.97 x 2.80 x 0.31 inches 151.7 x 71.2 x 7.9 mm
Folded
6.22 x2.64 x0.56 inches (158.2 x 67.1 x 14.4 mm)
Weight
9.56 oz (271.0 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, Phantom Green, Phantom Silver	Phantom pink, Violet, Gray, White

Display

Size
7.6-inch, 88.57% screen-to-body	6.2-inch, 86.06% screen-to-body
Type
Super AMOLED, 120Hz, 1200 nits	Dynamic AMOLED, 120Hz, HDR, 1300 nits
Resolution
2208x1768px, 22.5:18 ratio, 372 PPI	2400x1080px, 20:9 ratio, 424 PPI
Protection
	Corning Gorilla Glass Victus
Features
Folding inside the device, Ambient light sensor, Proximity sensor
Front cover display
6.2 inches 2268 x832 px Super AMOLED 120Hz refresh rate, Folding inside the device, HDR support, Scratch-resistant glass (Corning Gorilla Glass Victus), Ambient light sensor, Proximity senso

Hardware

System chip
Snapdragon 888 SM8350 (5 nm)	Snapdragon 888 (5 nm)
Processor
Octa-core 1x2.84GHz Kryo 680 3x2.42GHz Kryo 680 4x1.80GHz Kryo 680	Octa-core 1x2.84GHz Kryo 680 3x2.42GHz Kryo 680 4x1.80GHz Kryo 680
GPU
Adreno 660	Adreno 660
Memory
12GB (LPDDR5)/256GB (UFS 3.1) 12GB/512GB	8GB (LPDDR5)/128GB (UFS 3.0) 8GB/256GB
Storage expansion
not expandable	not expandable
OS
Android (14, 13, 12, 11)	Android (13, 12, 11)

Battery

Type
4400 mAh, Li - Polymer	4000 mAh, Li - Polymer
Charging
Fast charging Qi wireless charging, Reverse 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: 11.0W	Wired: 25.0W Wireless: 15.0W

PhoneArena Battery Tests

Battery Life Estimate

4h 30min

Browsing

8h 15min

Video

6h 58min

Gaming

8h 24min

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
Triple camera	Triple camera
Main camera
12 MP (OIS, PDAF) Aperture size: F1.8 Focal length: 26 mm Sensor size: 1/1.76" Pixel size: 1.8 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 (Telephoto, OIS, PDAF) Optical zoom: 2.0x Aperture size: F2.4 Focal Length: 52 mm Sensor size: 1/3.6" Pixel size: 1.0 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
12 MP (Ultra-wide, OIS) Aperture size: F2.2 Focal Length: 12 mm Pixel size: 1.12 μm	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, 10-bit HDR	8K UHD (24 fps), 4K UHD (60 fps), 1080p (240 fps), 720p (960 fps) OIS, HDR, Hyperlapse, Continuous autofocus, Video light, EIS
Front
4 MP (Under-screen, HDR) Folded: 10 MP Video capture: 4K UHD (30 fps)	10 MP (PDAF, HDR) Video capture: 4K UHD (60 fps)

Connectivity & Features

Bluetooth
5.2	5.0
WLAN
a,b,g,n,ac,Wi-Fi 6 Wi-Fi Direct, Hotspot 802.11 a, b, g, n, ac, ax	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	Type-C, USB 3.2
Sensors
Accelerometer, Gyroscope, Compass, Barometer, Ambient light sensor, Proximity sensor	Accelerometer, Gyroscope, Compass, Hall (for flip covers), Barometer, Ambient light sensor, Proximity sensor
Hearing aid compatible
M3/T4	M3/T3
Location
GPS, A-GPS, Glonass, Galileo, Cell ID, Wi-Fi positioning	GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning
Other
NFC	NFC, ANT+

Multimedia

Headphones
No 3.5mm jack	No 3.5mm jack
Speakers
Earpiece, Multiple speakers	Earpiece, Multiple speakers
Features
Dolby Atmos, aptX, aptX-HD	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, n25, n41, n66, n71, n260, SA, NSA, Sub-6, mmWave	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	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	38, 39, 40, 41, 46, 48
3G Bands
1, 2, 5, 8, 9	1, 2, 4, 5, 8
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, eSIM	Nano SIM

Regulatory Approval

FCC approval
Date approved: Jun 23, 2021 FCC ID value: A3LSMF926U	Date approved: Dec 08, 2020 FCC ID value: A3LSMG991U
Measured SAR
Head: 0.73 W/kg Body: 0.86 W/kg Simultaneous Transmission: 1.22 W/kg Wireless Router: 0.79 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

Alternative variants

With 512GB internal storage

Memory	512GB
Prices (MSRP)	$1899

with 256GB storage

Memory	256GB

With Dual SIM and eSIM

SIM type	Dual Nano SIM + eSIM

for Europe

System chip	Samsung Exynos 2100 (5 nm)
Processor	Octa-core 2900 MHz 1x2.91GHz Cortex-X1 3x2.81G​Hz Cortex-A78 4x2.2G​Hz 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

Links

Full specifications
Samsung Galaxy Z Fold 3 Specs	Samsung Galaxy S21 Specs
PhoneArena Review
Samsung Galaxy Z Fold 3 Review	Samsung Galaxy S21 Review
User Reviews
Samsung Galaxy Z Fold 3 User Reviews	Samsung Galaxy S21 User Reviews