Samsung Galaxy S20 Ultra 5G vs Samsung Galaxy A51 Specs Comparison

Availability

Officially announced
Feb 11, 2020	Dec 12, 2019
Prices (MSRP)
$1400	$400

Design

Dimensions
6.57 x 2.99 x 0.35 inches 166.9 x 76 x 8.8 mm	6.24 x 2.90 x 0.31 inches 158.5 x 73.6 x 7.9 mm
Weight
7.83 oz (222.0 g)	6.07 oz (172.0 g)
Materials
Back: Glass (Corning Gorilla Glass 6) Frame: Aluminum	Back: Plastic Frame: Plastic
Resistance
Water, Dust; IP68
Biometrics
2D Face unlock, Ultrasonic in-screen fingerprint	2D Face unlock, Optical in-screen fingerprint
Keys
Right: Volume control, Lock/Unlock key	Right: Volume control, Lock/Unlock key
Colors
Cosmic black, Cosmic grey	Prism Crush black, Prism Crush white, Prism Crush pink, Prism Crush blue

Display

Size
6.9-inch, 90.70% screen-to-body	6.5-inch, 87.37% screen-to-body
Type
Dynamic AMOLED, 120Hz, HDR, 1400 nits	Super AMOLED, 60Hz
Resolution
3200x1440px, 20:9 ratio, 509 PPI	2400x1080px, 20:9 ratio, 405 PPI
Protection
Corning Gorilla Glass 6	Corning Gorilla Glass 3

Hardware

System chip
Snapdragon 865 SM8250 (7 nm)	Samsung Exynos 9611 (10 nm)
Processor
Octa-core Kryo 585	Octa-core 2300 MHz 4x2.3GHz Cortex-A73 4x1.7G​Hz Cortex-A53
GPU
Adreno 650	Mali-G72 MP3
Memory
12GB (LPDDR5)/128GB (UFS 3.0) 12GB/256GB 16GB/512GB	4GB (LPDDR4)/128GB 6GB/128GB
Storage expansion
microSDXC up to 1000 GB	microSDXC up to 512 GB
OS
Android (13, 12, 11, 10)	Android (11, 10)

Battery

Type
5000 mAh, Li - Polymer	4000 mAh, Li - Polymer
Charging
Qualcomm Quick Charge 2.0, Samsung Adaptive Fast Charging Qi and Powermat wireless charging, Reverse wireless charging	Fast charging
Charge speed
Wired: 45.0W Wireless: 15.0W

PhoneArena Battery Tests

Battery Life Estimate

5h 57min

Browsing

10h 2min

Video

10h 29min

Gaming

9h 12min

Battery Life Estimate

5h 22min

Browsing

11h 35min

Video

8h 35min

Gaming

6h 40min

Learn more on our PhoneArena Battery Test Results page

Camera

Rear
Quad camera	Quad camera
Main camera
108 MP (OIS, PDAF) Aperture size: F1.8 Focal length: 26 mm	48 MP (PDAF) Aperture size: F2.0 Focal length: 26 mm Sensor size: 1/2" Pixel size: 0.8 μm
Second camera
12 MP (Ultra-wide, Autofocus) Aperture size: F2.2 Focal Length: 13 mm Pixel size: 1.4 μm	12 MP (Ultra-wide) Aperture size: F2.2 Focal Length: 13 mm Pixel size: 1.12 μm
Third camera
48 MP (Telephoto, OIS, PDAF) Aperture size: F3.5 Focal Length: 102 mm Sensor size: 1/2" Pixel size: 0.8 μm	5 MP (Macro) Aperture size: F2.4 Focal Length: 40 mm
Fourth camera
0.3 MP VGA (ToF 3D depth sensing)	5 MP (Depth information) Aperture size: F2.2 Sensor size: 1/5" Pixel size: 1.12 μm
Flash
LED	LED
Video recording
8K UHD (24 fps), 4K UHD (60 fps), 1080p (240 fps), 720p (960 fps) OIS, HDR, Time-lapse video, EIS	4K UHD (30 fps), 1080p (120 fps), 720p (240 fps) Hyperlapse, EIS
Front
40 MP (PDAF, HDR) Video capture: 4K UHD (60 fps)	32 MP (HDR) Video capture: 1080p

Connectivity & Features

Bluetooth
5.0	5.0
WLAN
a,b,g,n,ac,Wi-Fi 6,dual-band MIMO, Wi-Fi Direct, Hotspot 802.11 a, b, g, n, ac, ax	a,b,g,n,ac,dual-band 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, Compass, Hall (for flip covers), Ambient light sensor, Proximity sensor
Hearing aid compatible
M3/T4
Location
GPS, A-GPS, Glonass, Galileo, Cell ID, Wi-Fi positioning	GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning
Other
NFC, ANT+	NFC, ANT+

Multimedia

Headphones
No 3.5mm jack	3.5mm jack
Speakers
Earpiece, Multiple speakers	Earpiece, Loudspeaker
Features
32-Bit DAC, Dolby Atmos, aptX, Dolby Digital, Dolby Digital Plus	Dolby Atmos
Screen mirroring
	Wireless screen share
Radio
	FM
Additional microphone(s)
	Noise cancellation

Cellular

5G Bands
n2, n5, n41, n66, n71, 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, 29, 30, 66, 71	1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 20, 25, 26, 28, 29, 30, 66, 71
4G (TDD) Bands
38, 39, 40, 41, 46, 48	38, 39, 41
3G Bands
1, 2, 4, 5, 8	1, 2, 4, 5, 8
Data Speed
LTE-A Pro Cat 20 (2000/150 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s	LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
SIM type
Nano SIM	Nano SIM

Regulatory Approval

FCC approval
Date approved: Jan 28, 2020 FCC ID value: A3LSMG988B	Date approved: Nov 28, 2019 FCC ID value: A3LSMA515FN
Measured SAR
Head: 0.26 W/kg Body: 0.41 W/kg Simultaneous Transmission: 1.57 W/kg Wireless Router: 1.04 W/kg Phablet: 2.12 W/kg	Head: 0.89 W/kg Body: 1.18 W/kg Simultaneous Transmission: 1.56 W/kg Wireless Router: 1.12 W/kg Phablet: 2.76 W/kg

Alternative variants

Global variant

System chip	Samsung Exynos 990 (7 nm)
Processor	Octa-core 2700 MHz Mongoose M5, Arm Cortex-A76 and Arm Cortex-A55
GPU	Mali G77 MP11
5G Bands	n1, n3, n5, n7, n8, n28, n40, n77, n78, Sub-6
4G (FDD) Bands	1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 66
4G (TDD) Bands	38, 39, 40, 41
Dual SIM	Yes
SIM type	Nano SIM, eSIM

with 128GB storage

Memory	6GB/128GB

with 256GB storage

Memory	256GB

for Verizon

4G (FDD) Bands	2, 3, 4, 5, 7, 13, 20, 28, 66
3G Bands	5, 8, 2, 1

with 512GB storage

Memory	16GB/512GB
Prices (MSRP)	$1600

for AT&T

4G (FDD) Bands	2, 4, 5, 12, 13, 25, 26, 66, 71
4G (TDD) Bands	41

for Sprint

4G (FDD) Bands	1, 2, 3, 4, 5, 7, 8, 12, 13, 20, 25, 26, 28, 66, 71

for Sprint

4G (FDD) Bands	2, 4, 5, 12, 13, 25, 26, 66, 71
4G (TDD) Bands	41

for Verizon

4G (FDD) Bands	2, 3, 4, 5, 7, 8, 12, 13, 18, 19, 20, 26, 28, 66
3G Bands	5, 8, 2, 1

for Europe

4G (FDD) Bands	1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 26, 28, 66
4G (TDD) Bands	38, 40, 41
Dual SIM	Yes

for T-Mobile

4G (FDD) Bands	1, 2, 3, 4, 5, 7, 8, 12, 13, 18, 19, 20, 25, 26, 28, 66, 71
3G Bands	5, 4, 2, 1

Links

Full specifications
Samsung Galaxy S20 Ultra 5G Specs	Samsung Galaxy A51 Specs
PhoneArena Review
Samsung Galaxy S20 Ultra 5G Review	Samsung Galaxy A51 Review
User Reviews
Samsung Galaxy S20 Ultra 5G User Reviews	Samsung Galaxy A51 User Reviews