Samsung Galaxy S21 vs Nothing Phone (4a) Pro Specs Comparison

Availability

Officially announced
Jan 14, 2021	Mar 05, 2026
Scheduled release
	Mar 27, 2026
Prices (MSRP)
$800	8GB/128GB - $499 | €479 12GB/256GB - $599 | €549

Design

Dimensions
5.97 x 2.80 x 0.31 inches 151.7 x 71.2 x 7.9 mm	6.44 x 3.02 x 0.31 inches 163.6 x 76.6 x 7.9 mm
Weight
6.03 oz / 171.0 g Europe version - 169 g	7.41 oz / 210.0 g
Materials
Back: Plastic Frame: Aluminum	Back: Aluminum Frame: Aluminum
Resistance
Water, Dust; IP68	Water, Dust; IP65
Biometrics
2D Face unlock, Ultrasonic in-screen fingerprint	Optical in-screen fingerprint
Keys
Right: Volume control, Lock/Unlock key	Right: Volume control
Colors
Phantom pink, Violet, Gray, White	Silver, Pink, Black

Display

Size
6.2-inch, 86.06% screen-to-body	6.8-inch, 89.76% screen-to-body
Type
Dynamic AMOLED, 120Hz, HDR, 1300 nits	AMOLED, 144Hz, HDR10+, 5000 nits
Resolution
2400x1080px, 20:9 ratio, 424 PPI	2800x1260px, 20:9 ratio, 450 PPI
Protection
Corning Gorilla Glass Victus	Corning Gorilla Glass 7i

PhoneArena Display Test

Bright Max (20% APL)
Untested	1520 (Good)
Bright Min
1.2 (Good)	1.9 (Good)

Learn more on our PhoneArena Display Test Results page.

Hardware

System chip
Snapdragon 888 (5 nm) Europe version - Exynos 2100 S5E9840	Snapdragon 7 Gen 4 SM7750-AB (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 1x2.8GHz Cortex-A720 4x2.4​GHz Cortex-A720 3x1.8​GHz Cortex-A520
GPU
Adreno 660 Europe version - Mali-G78 MP14	Adreno 722
Memory
8GB (LPDDR5)/128GB (UFS 3.0) 8GB/256GB	8GB (LPDDR5X)/128GB (UFS 3.1) 12GB/256GB
Storage expansion
not expandable	not expandable
OS
Android (13, 12, 11)	Android (16), up to 3 OS updates

PhoneArena Performance Test

GeekBench 6 Single
Untested	1350
GeekBench 6 Multi
Untested	4221
3D Mark High
Untested	2094
3D Mark Low
Untested	2082

Learn more on our PhoneArena Performance Test Results page.

Battery

Type
4000 mAh, Li - Polymer	5080 mAh
Charging
Qualcomm Quick Charge 2.0, USB Power Delivery, Samsung Adaptive Fast Charging Qi and Powermat wireless charging, Reverse wireless charging	Qualcomm Quick Charge 4, USB Power Delivery Reverse wired charging
Charge speed
Wired: 25.0W Wireless: 15.0W	Wired: 50.0W

PhoneArena Battery Tests

Battery Life Estimate

4h 28min

Browsing

7h 47min

Video

7h 36min

Gaming

7h 9min

Battery Life Estimate

7h 22min

Browsing

16h 22min

Video

12h 29min

Gaming

6h 44min

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, Autofocus, PDAF) Sensor name: Sony LYT-710 Aperture size: F1.9 Focal length: 24 mm Sensor size: 1/1.56" Pixel size: 1 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	8 MP (Ultra-wide) Aperture size: F2.2 Focal Length: 15 mm Sensor size: 1/4" 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	50 MP (Telephoto, Periscope, OIS, Autofocus, PDAF) Optical zoom: 3.5x Aperture size: F2.9 Focal Length: 80 mm Sensor size: 1/2.75" Pixel size: 0.64 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	4K UHD (30 fps), 1080p (120 fps) HDR, Time-lapse video, EIS, Dolby Vision HDR
Front
10 MP (PDAF, HDR) Video capture: 4K UHD (60 fps)	32 MP

Connectivity & Features

Bluetooth
5.0	5.4
WLAN
Wi-Fi 6,dual-band MIMO, Wi-Fi Direct, Hotspot 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
USB
Type-C, USB 3.2	Type-C, USB 2.0
Sensors
Accelerometer, Gyroscope, Compass, Hall (for flip covers), Barometer, Ambient light sensor, Proximity sensor	Accelerometer, Gyroscope, 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, BeiDou, QZSS, 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	n1, n2, n3, n5, n7, n8, n12, n20, n25, n28, n38, n40, n41, n48, n66, n71, n77, n78
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, 17, 18, 19, 20, 25, 26, 28, 66, 71
TDD Bands
38, 39, 40, 41, 46, 48	38, 40, 41, 42, 48
3G Bands
1, 2, 4, 5, 8	1, 2, 4, 5, 6, 8, 19
Data Speed
LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s, UMTS
SIM type
Nano SIM	Dual Nano SIM + eSIM
HD Voice
	Yes
VoLTE
	Yes

Regulatory Approval

FCC approval
Date approved: Dec 08, 2020 FCC ID value: A3LSMG991U
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

Alternative variants

with 256GB storage

Memory	256GB

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

Discover more

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