Samsung Galaxy A51 vs Samsung Galaxy A15 5G Specs Comparison

Display

Size
6.5-inch	6.5-inch
Resolution
2400 x 1080 px, 20:9 ratio, 405 PPI	2340 x 1080 px, 19.5:9 ratio, 396 PPI
Technology
Super AMOLED	Super AMOLED
Refresh rate
60Hz	90Hz
Screen-to-body
87.37 %	84.49 %
Peak brightness
	800 cd/m2 (nit)
Features
Scratch-resistant glass (Corning Gorilla Glass 3), Ambient light sensor, Proximity sensor	Ambient light sensor, Proximity sensor

Hardware

System chip
Samsung Exynos 9611 (10 nm)	Mediatek Dimensity 6100+ (6 nm)
Processor
Octa-core, 2300 MHz, 4x 2.3GHz Cortex-A73 + 4x 1.7GHz Cortex-A53, 64-bit	Octa-core, 2x2.2GHz Cortex-A76 + 6x2.0GHz Cortex-A55, 64-bit
GPU
Mali-G72 MP3	Mali-G57 MC2
RAM
4GB (LPDDR4)	4GB
Internal storage
128GB, available to use: 105.9 GB	128GB
Storage expansion
microSDXC up to 512 GB	microSDXC up to 1000 GB
OS
Android (11, 10), Samsung One UI	Android (14), One UI 16 UI
Device type
Smartphone	Smartphone

Battery

Capacity
4000 mAh	5000 mAh
Type
Li - Polymer, Not user replaceable	Not user replaceable
Battery life test results
link
Charging
Fast charging
Max charge speed
	Wired: 25.0W

PhoneArena Battery Tests

Battery Life Estimate

5h 22min

Browsing

11h 35min

Video

8h 35min

Gaming

6h 40min

Battery Life Estimate

6h 43min

Browsing

10h 41min

Video

12h 15min

Gaming

10h 19min

Find out more details about battery and charging for all phones we have tested on our PhoneArena Battery Score page.

Camera

Rear
Quad camera	Triple camera
Main camera
48 MP (PDAF) Specifications: Aperture size: F2.0 Focal length: 26 mm Sensor size: 1/2" Pixel size: 0.8 μm	50 MP (Autofocus) Specifications: Aperture size: F1.8
Second camera
12 MP (Ultra-wide) Specifications: Aperture size: F2.2 Focal Length: 13 mm Pixel size: 1.12 μm	5 MP (Ultra-wide) Specifications: Aperture size: F2.2
Third camera
5 MP (Macro) Specifications: Aperture size: F2.4 Focal Length: 40 mm	2 MP (Macro) Specifications: Aperture size: F2.4
Fourth camera
5 MP (Depth information) Specifications: Aperture size: F2.2 Sensor size: 1/5" Pixel size: 1.12 μm
Flash
LED	LED
Video recording
3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (120 fps), 1280x720 (HD) (240 fps)Features: Hyperlapse, EIS	1920x1080 (Full HD) (30 fps)
Front
32 MP (HDR), Video capture: 1920x1080 (Full HD)	13 MP

PhoneArena Camera Tests

N/A

Overall

N/A

Photo

N/A

Video

122

Overall

136

Photo

107

Video

Find out more details about photo and video scores for all phones we have tested on our PhoneArena Camera Score page.

Design

Dimensions
6.24 x 2.90 x 0.31 inches (158.5 x 73.6 x 7.9 mm)	6.30 x 3.02 x 0.33 inches (160.1 x 76.8 x 8.4 mm)
Weight
6.07 oz(172.0 g)	7.05 oz(200.0 g)
Materials
Back: Plastic Frame: Plastic	Back: Plastic Frame: Plastic
Biometrics
2D Face unlock, In-screen fingerprint	Fingerprint (touch)
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	Blue Black, Light Blue

Cellular

5G
	Bands n1, n3, n5, n7, n8, n28, n40, n41, n66, n71, n77, n78, SA, NSA, Sub-6
4G (FDD)
Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 13(700 c), 14(700 PS), 20(800 DD), 25(1900+), 26(850+), 28(700 APT), 29(700 d), 30(2300 WCS), 66(AWS-3), 71(600)	Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 17(700 b), 20(800 DD), 26(850+), 28(700 APT), 66(AWS-3)
4G (TDD)
Bands 38(2600), 39(1900+), 41(2600+)	Bands 38(2600), 40(2300), 41(2600+)
3G
Bands 1(2100), 2(1900), 4(1700/2100), 5(850), 8(900)	Bands 1(2100), 2(1900), 4(1700/2100), 5(850), 8(900)
Data Speed
LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s	LTE-A
Dual SIM
	Yes
SIM type
Nano SIM	Dual Nano SIM
HD Voice
	Yes
VoLTE
	Yes

Multimedia

Headphones
3.5mm jack	3.5mm jack
Speakers
Earpiece, Loudspeaker	Earpiece, Multiple speakers
Features
Dolby Atmos
Screen mirroring
Wireless screen share	Wireless screen share
Radio
FM
Additional microphone(s)
Noise cancellation	Noise cancellation

Connectivity & Features

Bluetooth
5.0	5.3
Wi-Fi
802.11 a,b,g,n,ac,dual-band Wi-Fi Direct, Hotspot	802.11 a,b,g,n,ac,dual-band Wi-Fi Direct, Hotspot
USB
Type-C (reversible), USB 2.0, Features: Charging, OTG	Type-C (reversible), USB 2.0, Features: Charging
Location
GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning	GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning
Sensors
Accelerometer, Gyroscope, Compass, Hall (for flip covers)	Accelerometer, Gyroscope, Compass
Other
NFC, ANT+	NFC

Regulatory Approval

FCC approval
Date approved: Nov 28, 2019 FCC ID value: A3LSMA515FN
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

Buyers information

Price
$ 400	$ 200
User Manual
This is the official Samsu​ng Galaxy A51 User Guide in English provided from the manufacturer.

Availability

Officially announced
Dec 12, 2019	Dec 11, 2023

Links

Full specifications
Samsung Galaxy A51 Specs	Samsung Galaxy A15 5G Specs
PhoneArena Review
Samsung Galaxy A51 Review	Samsung Galaxy A15 5G Review
User Reviews
Samsung Galaxy A51 User Reviews	Samsung Galaxy A15 5G User Reviews