Samsung Galaxy A51 vs Samsung Galaxy S24 Ultra Specs Comparison

Availability

Officially announced
Dec 12, 2019	Jan 17, 2024
Prices (MSRP)
$400	$1300 | €1449

Design

Dimensions
6.24 x 2.90 x 0.31 inches 158.5 x 73.6 x 7.9 mm	6.39 x 3.11 x 0.34 inches (~0.37 inches with camera bump) 162.3 x 79 x 8.6 mm (~9.5 mm with camera bump)
Weight
6.07 oz / 172.0 g	8.22 oz / 233.0 g
Materials
Back: Plastic Frame: Plastic	Back: Glass (Corning Gorilla Glass Armor) Frame: Titanium
Resistance
	Water, Dust; IP68
Biometrics
2D Face unlock, Optical in-screen fingerprint	Ultrasonic in-screen fingerprint
Features
	Stylus
Keys
Right: Volume control, Lock/Unlock key	Right: Volume control, Lock/Unlock key
Colors
Prism Crush black, Prism Crush white, Prism Crush pink, Prism Crush blue	Titanium Black, Titanium Gray, Titanium Violet, Titanium Yellow, Titanium Blue, Titanium Green, Titanium Orange

Display

Size
6.5-inch, 87.37% screen-to-body	6.8-inch, 89.12% screen-to-body
Type
Super AMOLED, 60Hz	Dynamic AMOLED, 120Hz, HDR, 2600 nits
Resolution
2400x1080px, 20:9 ratio, 405 PPI	3088x1440px, 19.5:9 ratio, 501 PPI
Protection
Corning Gorilla Glass 3	Corning Gorilla Glass Armor

PhoneArena Display Test

Bright Max (20% APL)
Untested	2310 (Excellent)
Bright Min
1.7 (Good)	1.1 (Good)

Learn more on our PhoneArena Display Test Results page.

Hardware

System chip
Samsung Exynos 9611 (10 nm)	Snapdragon 8 Gen 3 SM8650-AB (4 nm)
Processor
Octa-core 2300 MHz 4x2.3GHz Cortex-A73 4x1.7G​Hz Cortex-A53	Octa-core 1x3.39GHz Cortex-X4 5x3.1GH​z Cortex-A720 2x2.2​GHz Cortex-A520
GPU
Mali-G72 MP3	Adreno 750
Memory
4GB (LPDDR4)/128GB 6GB/128GB	12GB (LPDDR5X)/256GB (UFS 4.0) 12GB/512GB 12GB/1024GB
Storage expansion
microSDXC up to 512 GB	not expandable
OS
Android (11, 10)	Android (14), up to 7 OS updates

PhoneArena Performance Test

GeekBench 6 Single
Untested	2187
GeekBench 6 Multi
Untested	6669
3D Mark High
Untested	4960
3D Mark Low
Untested	2710

Learn more on our PhoneArena Performance Test Results page.

Battery

Type
4000 mAh, Li - Polymer	5000 mAh, Li - Ion
Charging
Fast charging	Fast charging Qi wireless charging, Reverse wireless charging
Charge speed
	Wired: 45.0W Wireless: 15.0W

PhoneArena Battery Tests

Battery Life Estimate

5h 22min

Browsing

11h 35min

Video

8h 35min

Gaming

6h 40min

Battery Life Estimate

7h 39min

Browsing

20h 6min

Video

8h 18min

Gaming

13h 53min

Learn more on our PhoneArena Battery Test Results page

Camera

Rear
Quad camera	Quad camera
Main camera
48 MP (PDAF) Aperture size: F2.0 Focal length: 26 mm Sensor size: 1/2" Pixel size: 0.8 μm	200 MP (OIS, Laser and PDAF) Sensor name: Samsung ISOCELL HP2 Aperture size: F1.7 Focal length: 24 mm Sensor size: 1/1.3" Pixel size: 0.6 μm
Second camera
12 MP (Ultra-wide) Aperture size: F2.2 Focal Length: 13 mm Pixel size: 1.12 μm	12 MP (Ultra-wide, PDAF) Sensor name: Sony IMX564 Aperture size: F2.2 Focal Length: 13 mm Sensor size: 1/2.55" Pixel size: 1.4 μm
Third camera
5 MP (Macro) Aperture size: F2.4 Focal Length: 40 mm	10 MP (Telephoto, OIS, PDAF) Sensor name: Sony IMX754 Optical zoom: 3.0x Aperture size: F2.4 Focal Length: 67 mm Sensor size: 1/3.52" Pixel size: 1.12 μm
Fourth camera
5 MP (Depth information) Aperture size: F2.2 Sensor size: 1/5" Pixel size: 1.12 μm	50 MP (Telephoto, Periscope, OIS, PDAF) Sensor name: Sony IMX854 Optical zoom: 5.0x Aperture size: F3.4 Focal Length: 111 mm Sensor size: 1/2.52" Pixel size: 0.7 μm
Flash
LED	LED
Video recording
4K UHD (30 fps), 1080p (120 fps), 720p (240 fps) Hyperlapse, EIS	8K UHD (30 fps), 4K UHD (120 fps), 1080p (240 fps) HDR, Continuous autofocus, Picture-taking during video recording
Front
32 MP (HDR) Video capture: 1080p	12 MP (PDAF, HDR) Video capture: 4K UHD (60 fps)

PhoneArena Camera Tests

N/A

Overall

N/A

Photo

N/A

Video

156

Overall

162

Photo

151

Video

Learn more on our PhoneArena Camera Test Results page

Connectivity & Features

Bluetooth
5.0	5.3
WLAN
a,b,g,n,ac,dual-band Wi-Fi Direct, Hotspot 802.11 a, b, g, n, ac	Wi-Fi 6,Wi-Fi 6E,Wi-Fi 7,tri-band Wi-Fi Direct, Hotspot 802.11 ax
USB
Type-C, USB 2.0	Type-C, USB 3.2
Sensors
Accelerometer, Gyroscope, Compass, Hall (for flip covers), Ambient light sensor, Proximity sensor	Accelerometer, Gyroscope, Compass, Barometer, Ambient light sensor, Proximity sensor
Hearing aid compatible
	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, Ultra Wideband (UWB)

Multimedia

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

Cellular

5G Bands
	n1, n2, n3, n5, n7, n8, n12, n20, n25, n28, n38, n40, n41, n66, n75, n77, n78, SA, NSA, Sub-6, mmWave
4G (FDD) Bands
1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 20, 25, 26, 28, 29, 30, 66, 71	1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 66
4G (TDD) Bands
38, 39, 41	38, 39, 40, 41
3G Bands
1, 2, 4, 5, 8	1, 2, 5, 8
Data Speed
LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s	LTE-A Pro Cat 20 (2000/150 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s
SIM type
Nano SIM	Dual Nano SIM + eSIM

Regulatory Approval

FCC approval
Date approved: Nov 28, 2019 FCC ID value: A3LSMA515FN	Date approved: Nov 29, 2023 FCC ID value: A3LSMS928U
Measured SAR
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	Head: 1.26 W/kg Body: 0.62 W/kg Simultaneous Transmission: 1.59 W/kg Wireless Router: 1.26 W/kg

Alternative variants

with 128GB storage

Memory	6GB/128GB

With 512GB internal storage

Memory	512GB
Prices (MSRP)	$1420

for Verizon

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

With 1TB internal storage

Memory	1024GB
Prices (MSRP)	$1660

for AT&T

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

for Sprint

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

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

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