Samsung Galaxy S21 vs Samsung Galaxy Z Fold 6 Specs Comparison

Availability

Officially announced
Jan 14, 2021	Jul 10, 2024
Prices (MSRP)
$800	12GB/256GB - $1900 | €1900

Design

Dimensions
5.97 x 2.80 x 0.31 inches 151.7 x 71.2 x 7.9 mm	6.04 x 5.22 x 0.22 inches (~0.26 inches with camera bump) 153.5 x 132.6 x 5.6 mm (~6.7 mm with camera bump)
Folded
	6.04 x2.68 x0.47 inches (153.5 x 68.1 x 12.1 mm)
Weight
6.03 oz / 171.0 g Europe version - 169 g	8.43 oz / 239.0 g
Materials
Back: Plastic Frame: Aluminum	Back: Glass (Corning Gorilla Glass Victus 2) Frame: Aluminum
Resistance
Water, Dust; IP68	Water, Dust; IP48
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 pink, Violet, Gray, White	Silver Shadow, Pink, Navy, Crafted Black, White

Display

Size
6.2-inch, 86.06% screen-to-body	7.6-inch, 90.56% screen-to-body
Type
Dynamic AMOLED, 120Hz, HDR, 1300 nits	Dynamic AMOLED, 120Hz, HDR, 2600 nits
Resolution
2400x1080px, 20:9 ratio, 424 PPI	2160x1856px, 21.9:18 ratio, 375 PPI
Protection
Corning Gorilla Glass Victus
Features
	Folding inside the device, HDR support, Ambient light sensor, Proximity sensor
Front cover display
	6.3 inches 2376 x968 px Dynamic AMOLED 120Hz refresh rate, Scratch-resistant glass (Corning Gorilla Glass Victus 2), Ambient light sensor, Proximity senso

PhoneArena Display Test

Bright Max (20% APL)
Untested	2520 (Excellent)
Bright Min
1.2 (Good)	1 (Excellent)

Learn more on our PhoneArena Display Test Results page.

Hardware

System chip
Snapdragon 888 (5 nm) Europe version - Exynos 2100 S5E9840	Snapdragon 8 Gen 3 for Galaxy SM8650-AC (4 nm)
Processor
Octa-core 1x2.84GHz Kryo 680 3x2.42GHz Kryo 680 4x1.80GHz Kryo 680 Europe version - Octa-core, 1x2.91GHz Cortex-X1, 3x2.81G​Hz Cortex-A78, 4x2.2G​Hz Cortex-A55	Octa-core 1x3.40GHz Cortex-X4 3x3.15G​Hz Cortex-A720 2x2.9​6GHz Cortex-A720 2x2.2​7GHz Cortex-A520
GPU
Adreno 660 Europe version - Mali-G78 MP14	Adreno 750
Memory
8GB (LPDDR5)/128GB (UFS 3.0) 8GB/256GB	12GB (LPDDR5X)/256GB (UFS 4.0) 12GB/512GB 12GB/1024GB
Storage expansion
not expandable	not expandable
OS
Android (13, 12, 11)	Android (15, 14)

PhoneArena Performance Test

GeekBench 6 Single
Untested	2252
GeekBench 6 Multi
Untested	6796
3D Mark High
Untested	4785
3D Mark Low
Untested	2692

Learn more on our PhoneArena Performance Test Results page.

Battery

Type
4000 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 wireless charging
Charge speed
Wired: 25.0W Wireless: 15.0W	Wired: 25.0W Wireless: 15.0W

PhoneArena Battery Tests

Battery Life Estimate

4h 28min

Browsing

7h 47min

Video

7h 36min

Gaming

7h 9min

Battery Life Estimate

5h 33min

Browsing

12h 42min

Video

7h 1min

Gaming

10h 30min

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	50 MP (OIS, PDAF) Aperture size: F1.8 Focal length: 23 mm Sensor size: 1/1.57" Pixel size: 1.0 μm
Second camera
12 MP (Ultra-wide, Autofocus) Aperture size: F2.2 Focal Length: 13 mm Sensor size: 1/2.55" Pixel size: 1.4 μm	12 MP (Telephoto, OIS, PDAF) Aperture size: F2.2 Focal Length: 12 mm Sensor size: 1/3.2" Pixel size: 1.12 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	10 MP (Telephoto) Optical zoom: 3.0x Aperture size: F2.4 Focal Length: 66 mm Sensor size: 1/3.94" Pixel size: 1.0 μm
Flash
LED	LED
Video recording
8K UHD (24 fps), 4K UHD (60 fps), 1080p (240 fps), 720p (960 fps) OIS, HDR, Hyperlapse, Continuous autofocus, Video light, EIS	8K UHD (30 fps), 4K UHD (60 fps), 1080p (240 fps), 720p (960 fps) Continuous autofocus, EIS, 10-bit HDR
Front
10 MP (PDAF, HDR) Video capture: 4K UHD (60 fps)	4 MP (Under-screen, HDR) Folded: 10 MP Video capture: 4K UHD (30 fps)

PhoneArena Camera Tests

N/A

Overall

N/A

Photo

N/A

Video

142

Overall

147

Photo

136

Video

Learn more on our PhoneArena Camera Test Results page

Connectivity & Features

Bluetooth
5.0	5.3
WLAN
Wi-Fi 6,dual-band MIMO, Wi-Fi Direct, Hotspot 802.11 a, b, g, n, ac, ax	Wi-Fi 6,Wi-Fi 6E 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	M3/T4
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	Dolby Atmos, aptX, aptX-HD

Cellular

5G Bands
n2, n5, n12, n25, n41, n66, n71, n77, n260, n261, SA, NSA, Sub-6, mmWave	n1, n2, n5, n7, n25, n28, n41, n66, n71, n77, n78, n258, n260, n261, SA, NSA, Sub-6, mmWave
LTE 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
TDD Bands
38, 39, 40, 41, 46, 48	38, 39, 40, 41, 48
3G Bands
1, 2, 4, 5, 8	1, 2, 4, 5, 8
Data Speed
LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s, UMTS	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 08, 2020 FCC ID value: A3LSMG991U	Date approved: May 31, 2024 FCC ID value: A3LSMF956U
Measured SAR
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	Head: 1.08 W/kg Body: 1.14 W/kg Simultaneous Transmission: 1.58 W/kg

Discover more

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