Updated : Oct 24, 2024, 2:12 AM

Samsung Galaxy A51

Full Specifications

Released · Dec 27, 2019

This device is also known as Samsung SM-A515U, Samsung SM-A515FN/DS

7.0

Read Samsung Galaxy A51 Review

7.8

Read All User Reviews (4)

I want it 5 users

I have it 3 users

I had it 0 users

Popular Comparisons

The Samsung Galaxy A51 is most commonly compared with these phones:

Design
Dimensions	6.24 x 2.90 x 0.31 inches 158.5 x 73.6 x 7.9 mm
Weight	6.07 oz (172.0 g)
Materials	Back: Plastic Frame: Plastic
Biometrics	2D Face unlock, Optical in-screen fingerprint
Keys	Right: Volume control, Lock/Unlock key
Colors	Prism Crush black, Prism Crush white, Prism Crush pink, Prism Crush blue

Display
Size	6.5-inch
Resolution	2400x1080px, 20:9 ratio, 405 PPI
Technology	Super AMOLED
Refresh rate	60Hz
Screen-to-body	87.37 %
Features	Scratch-resistant glass (Corning Gorilla Glass 3), Ambient light sensor, Proximity sensor

PhoneArena Display Test
Bright Max (20 APL)	Untested
Bright Min	1.7 (Good)
Learn more on our PhoneArena Display Test Results page.

Hardware
System chip	Samsung Exynos 9611 (10 nm)
Processor	Octa-core 2300 MHz 4x 2.3GHz Cortex-A73 + 4x 1.7GHz Cortex-A53
GPU	Mali-G72 MP3
RAM	4GB (LPDDR4)
Internal storage	128GB, available to use: 105.9 GB
Storage expansion	microSDXC up to 512 GB
OS	Android (11, 10), Samsung One UI
This device has different variants: View all

Battery
Capacity	4000 mAh
Type	Li - Polymer
Charging	Fast charging

PhoneArena Battery Test
Battery Life Estimate:	5h 22min
Browsing:	11h 35min
Gaming:	6h 40min
Video:	8h 35min
Learn more on our PhoneArena Battery Test Results page.

Camera
Rear	Quad camera
Main camera	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) Aperture size: F2.2 Focal Length: 13 mm Pixel size: 1.12 μm
Third camera	5 MP (Macro) Aperture size: F2.4 Focal Length: 40 mm
Fourth camera	5 MP (Depth information) Aperture size: F2.2 Sensor size: 1/5" Pixel size: 1.12 μm
Flash	LED
Video recording	3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (120 fps), 1280x720 (HD) (240 fps) Hyperlapse, EIS
Front	32 MP (HDR), Video capture: 1920x1080 (Full HD)

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

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

Cellular
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)
4G (TDD)	Bands 38(2600), 39(1900+), 41(2600+)
3G	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
SIM type	Nano SIM
This device has different variants: View all

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
MSRP	$ 400

Availability
Officially announced	Dec 12, 2019

Despite our efforts to provide full and correct Samsung Galaxy A51 specifications, there is always a possibility of admitting a mistake. If you see any wrong or incomplete data, please

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Alternative variants

with 128GB storage

Differences from the main variant:
RAM	6GB
Internal storage	128GB

for Verizon

Differences from the main variant:
4G (FDD)	Bands 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 13(700 c), 20(800 DD), 28(700 APT), 66(AWS-3)
3G	Bands 5(850), 8(900), 2(1900), 1(2100)

for AT&T

Differences from the main variant:
4G (FDD)	Bands 2(1900), 4(AWS-1), 5(850), 12(700 a), 13(700 c), 25(1900+), 26(850+), 66(AWS-3), 71(600)
4G (TDD)	Bands 41(2600+)

for Sprint

Differences from the main variant:
4G (FDD)	Bands 2(1900), 4(AWS-1), 5(850), 12(700 a), 13(700 c), 25(1900+), 26(850+), 66(AWS-3), 71(600)
4G (TDD)	Bands 41(2600+)

for Europe

Differences from the main variant:
4G (FDD)	Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 13(700 c), 17(700 b), 20(800 DD), 26(850+), 28(700 APT), 66(AWS-3)
4G (TDD)	Bands 38(2600), 40(2300), 41(2600+)
Dual SIM	Yes

Carrier Availability

Available

AT&T	Since May 4, 2020

Discontinued

Verizon
Boost Mobile
Xfinity Mobile
Tracfone

News

The last time we mentioned the Galaxy A51 – a very popular mid-ranger and an overall crowd-pleaser – was when talking about the Galaxy A55 and how the successor could retain a camera from the Galaxy A51.Prior to that, it was exactly a year ago – at t...

The crowd-pleaser Galaxy A51 is out of updates

Have you lost count yet of all the new and old Galaxy phones and tablets with high-end, mid-range, and low-end specifications Samsung has upgraded to a new OS version over the last few months? We know we have, although it's kind of our job to keep tr...

Samsung's Android 13 train is now stopping in two more US stations

According to a blog post from Google Project Zero (via TechCrunch), a trio of zero-day vulnerabilities in some newer Samsung Galaxy phones was being exploited by a commercial surveillance vendor. These companies could be telecom or tech firms trackin...

These three Samsung Galaxy phones had vulnerabilities exploited by an attacker

We've long lost count of all the smartphones and tablets Samsung has updated to the latest Android version in recent months and we probably missed reporting on a few older and/or less interesting devices, but the Galaxy A51 is one handset that could ...

Samsung is finally bringing Android 12 to one of its most successful phones ever

Links

Samsung Galaxy A51 Review

Overall User Rating

(4 reviews)

7.8

Build quality

8.3

Camera quality

Performance

7.5

Display

9.8

Battery life and charging

8.5

Allenater

Arena Apprentice

Great phone for every day tasks

Posted: Jan 18, 2022, 12:12 AM

Phone owned for more than a year

I've owned this phone for over a year. I really like it a lot. The only problem I have with it is when you stream music. It's will slow down and freeze after a few hours. To avoid this I have to clean out the cache. For every other purpose the phone is great. A little clunky processor but for what I paid for it not bad.

SimonTheBest

Arena Apprentice

Good Qty Phone - Samsung A51.

Edited: Oct 05, 2020, 8:55 PM

Phone owned for less than 3 months

I gotten the A51 becos my last phone went dead on me. I have been using it for the last months or so, I am quite happy with it. Many reviews had said the chip set (Exynos 9611) is outdated and slow. But I find it okay for my use. I have the 6GB RAM, which helps alot. One more note to consider....the A51 is going to get updates for 3 years....which is a good surprised for me.

The only fault of the phone is the onscreen finger print scanner...it is rather slow but I learnt that having registered 2 same fingers on one scanner helps to improve it. But I am hoping that Samsung will do an update to fix the problem.

As for another issue, is the battery......The A51 is quite a beast in consuming battery....And this too, i hope it can be fix with updates.

Build quality

Camera quality

Performance

Display

Battery life and charging

What I like

Good phone, Nice Screen and 3 years S/W support

What I don't like

Lower than avg battery, Slow finger scanner

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5 out of 6 people found this helpful.

wickedwilly

Arena Master

Great phone for the price

Posted: Jun 24, 2020, 8:36 PM

Phone owned for less than 3 months

Have been very happy with this as a smaller 2nd phone since day one. Considering the price and this is in the budget/mid-range it is highly recommended all-around phone. The comparable Pixel takes better photos, but for almost everything else this is better. Compare with the iPhone SE and this is a much better phone in most areas and a far better buy.

Build quality

Camera quality

Performance

Display

Battery life and charging

What I like