Samsung a31 vs a51 Review [Ultimate Comparison]

There are many things to consider when choosing a new phone.

From size, color and price, the list goes on.

Most people have never heard of Samsung’s newest phones, the A31, and A51.

These two models are very similar but come with a few different features that might be what you’re looking for in your next purchase!

The Samsung a31 is smaller than the A51 which may be perfect for those who prefer something more compact.

The battery life on both devices is pretty much identical at around 13 hours before needing to charge again so this shouldn’t be an issue either way!

The cameras seem to differ as well-the a31 has 8 MP while the a51 has 12MP.

However, both phones take great pictures.

Samsung a31 vs a51 Quick Comparisons

Samsung Galaxy A31-128GB / 4GB - A315G/DSL Unlocked Dual Sim Phone w/Quad Camera 48MP+8MP+5MP+5MP GSM...

Display: 6.4 inches Super AMOLED capacitive touchscreen, Resolution: 1080 x 2400 pixels; Memory: 128GB, 4G RAM - MicroSD up to 512GB

Sale

Tracfone Samsung Galaxy A51 4G LTE prepaid Smartphone (Locked) - Black - 128GB - Sim Card Included - CDMA

$129.73

See Also:

How to Screenshot on Samsung a51

Samsung 7000 vs 8000

How To Turn Off Samsung a51

Quick Samsung a31 vs a51 Highlights

The Samsung Galaxy A31 was unveiled, March 24, and will be a mid-range smartphone that will join the company’s Galaxy A-series.

It has an octa-core processor and a quad back camera configuration, and it competes with the Galaxy A51, another smartphone in the Samsung electronics Galaxy A-series.

The Galaxy A51 was released in January and features an octa-core chipset as well as four rear cameras. So, what distinguishes the newer Galaxy A31 from the slightly older Galaxy A51?

Price Comparison between the Samsung Galaxy A31 with the Samsung Galaxy A51

The Samsung Galaxy A31 was introduced on March 24, but no pricing or availability information has been released as of yet.

We do know that it will be available in two configurations: 4GB + 64GB and 6GB + 128GB. Prism Crush Black, Prism Crush Blue, Prism Crush Red, and Prism Crush White will be available.

Specifications of the Samsung Galaxy A31 vs. the Samsung Galaxy A51

The Android version of the Galaxy A31 has not been officially announced by Samsung, however, it is likely to be Android 10.

It also has a 6.4-inch AMOLED display with full-HD+ (1,080×2,400 pixels).

The Galaxy A51, on the other hand, sports a slightly larger 6.5-inch Super AMOLED full-HD+ (1,080×2,400 pixel) display.

The Galaxy A31 is powered by an unidentified octa-core CPU with two cores clocked at 2.0GHz and six cores clocked at 1.7GHz.

According to previous reports, the phone will be powered by a MediaTek Helio P65 SoC.

It has up to 6GB of RAM. The Samsung Galaxy A51 is powered by an octa-core Exynos 9611 SoC with 6GB RAM.

In terms of optics, both phones feature four main camera on the back.

The Galaxy A31 comes with a 48-megapixel primary camera with an f/2.0 aperture, an 8-megapixel sensor with an ultra-wide-angle lens and an f/2.2 aperture, a 5-megapixel depth sensor with an f/2.4 lens, and a 5-megapixel macro camera with an f/2.5 aperture.

The Galaxy A31 includes a notch-mounted 20-megapixel camera with an f/2.2 aperture on the front.

In contrast, the Galaxy A51 includes a 48-megapixel primary sensor with an f/2.0 lens, a 12-megapixel ultra-wide-angle camera with an f/2.0 aperture, a 5-megapixel macro camera with an f/2.4 aperture, and a 5-megapixel depth sensor with an f/2.2 lens.

It sports a 32-megapixel selfie camera with an f/2.2 aperture on the front.

The Galaxy A31 and Galaxy A51 both contain up to 128GB of internal storage that can be increased with a microSD card (up to 512GB).

There is no official information on connectivity possibilities for the Galaxy A31 at this time, however, an FCC listing indicates dual-band Wi-Fi (2.4GHz and 5GHz) in addition to 4G LTE.

A Bluetooth SIG certification indicates the presence of Bluetooth v5.0 and a USB Type-C port.

The Galaxy A51 is equipped with 4G VoLTE, Wi-Fi, Bluetooth v5.0, GPS/ A-GPS, and a USB Type-C port.

Both phones have fingerprint sensors built into the display.

The Galaxy A31 has a 5,000mAh battery with 15W fast charging support, whereas the Galaxy A51 has a lesser 4,500mAh battery with 25W fast charging capability.

The former measures 159.3×73.1×8.6mm and weighs 185 grams, while the latter measures 158.5×73.6×7.9mm and weighs 172 grams.

Important distinctions Between Samsung a31 vs a51

Samsung Galaxy A31-128GB / 4GB – A315G/DSL Unlocked Dual Sim Phone w/Quad Camera 48MP+8MP+5MP+5MP GSM International Version (Prism Crush White)

Samsung Galaxy A31-128GB / 4GB - A315G/DSL Unlocked Dual Sim Phone w/Quad Camera 48MP+8MP+5MP+5MP GSM...

• Display: 6.4 inches Super AMOLED capacitive touchscreen, Resolution: 1080 x 2400 pixels
• Memory: 128GB, 4G RAM - MicroSD up to 512GB
• Android OS -- Mediatek MT6768 Helio P65 -- Octa-core (2x2.0 GHz & 6x1.7 GHz) -- ARM Mali-G52
• Non-removable Li-Po 5000 mAh battery, Fast charging 15W
• Dimensions: 6.27 x 2.88 x 0.34 in, Weight: 6.53 oz

Check Lowest Price Now! Price incl. tax, excl. shipping

Tracfone Samsung Galaxy A51 4G LTE prepaid Smartphone (Locked) – Black – 128GB – Sim Card Included – CDMA

Sale

Tracfone Samsung Galaxy A51 4G LTE prepaid Smartphone (Locked) - Black - 128GB - Sim Card Included - CDMA

• Explore the Galaxy A51 in Prism Crush Black with no contracts and no activation fees from Tracfone, available on a variety of talk, text & data plans. The impressive quad camera has a lens for any occasion, from...
• With Tracfone now you're in control with no contracts or mystery fees and Unbeatable nationwide coverage on America’s largest and most dependable networks, on the same grid as the bigger carriers. Enjoy unlimited...
• 48MP main camera; 12MP Ultra Wide camera; 32MP front selfie camera; 6.5" Infinity-O Display
• 128GB storage; Prism Crush Black; Nationwide coverage on America’s largest and most dependable networks; Compatible with talk, text & data plans from Tracfone; 6.24'' x 2.89'' x 0.31'’

$129.73

Check Lowest Price Now! Price incl. tax, excl. shipping

A summary of the primary benefits of each smartphone device.

Consider the Samsung Galaxy A51 for the following reasons:

• Slow-motion recording at 960FPS results in a 28% improvement in AnTuTu Benchmark performance (213K versus 166K)
• Capability to record video at a resolution of 4K
• UFS 2.0 is a faster storage type than eMMC 5.1.
• Exynos 9 Octa 9611 CPU is more energy-efficient.
• The front-facing camera can record video in 4K resolution.

Consider the Samsung Galaxy A31 for the following specs reasons:

• Battery life is 44 percent longer (124 vs 86 hours)
• Battery capacity is increased by 1000 mAh: 5000 mAh vs. 4000 mAh battery

Detailed Specs That You Also Need To Know (Comparison)

(First= Galaxy a51)

(Second= Galaxy a31)

DISPLAY

Size:

• 6.5 inches tall
• 6.4 inch

Resolution:

• 2400 x 1080 pixels, 20:9 aspect ratio, and 405 PPI
• 2400 x 1080 pixels, 20:9 aspect ratio, 411 pixels per inch

Technology:

• AMOLED (Super AMOLED)
• AMOLED (Super AMOLED)

Rate of refresh:

• 60Hz
• 60Hz

Screen-to-body:

• 87.37 percentage
• 84.88 percentage

Features:

• Glass scratch-resistant (Corning Gorilla Glass 3), ambient light sensor, and proximity sensor
• Proximity sensor with ambient light sensor

HARDWARE

System Chip

• Samsung Exynos 9611 MediaTek Helio P65 MT6768 system chip
• Octa-core, 2300 MHz, ARM Cortex-A73 and Cortex-A53, 64-bit, 10 nm Octa-core, 2000 MHz, Arm Cortex-A75 and Arm Cortex-A55, 64-bit, 12 nm

GPU

• Mali-G72 MP3 Mali-G52 MC2 GPU
• RAM: 4GB LPDDR4 RAM: 4GB LPDDR4

RAM

• Internal storage: 128GB, usable space: 105.9 GB 64GB (eMMC 5.1), usable space: 46.2 GB
• Expansion storage: microSDXC up to 512 GB microSDXC up to 512 GB

Type of Device

• Smartphone
• Smartphone

OS

• Android (10), Samsung One UI
• Android (10), Samsung One UI

BATTERY

• 4000 mAh capacity
• 5000 mAh battery

Type:

Li-Polymer, non-replaceable by the user

Li-Polymer, non-replaceable by the user

Results of battery life tests:

https://www.phonearena.com/news/PhoneArena-Battery-Test-Results_id124954

Charging:

• Quick charging
• Rapid charging

Maximum charging speed:

Samsung gALAXY A31: 15.0W when wired

CAMERA

• The quad camera on the back
• Four-camera system

Main Camera

• 48 MP (PDAF) main camera
• 48 MP (PDAF)

Second camera Specifications:

• F2.0 aperture, 26 mm focal length, with a 1/2″ sensor “0.8 m pixel size
• F2.0 aperture; 26 mm focal length; 1/2 sensor size “; Pixel Dimensions: 0.8 m

Third Camera Specifications

• 8 MP (Ultra-wide)
• 12 MP (second camera) (Ultra-wide)

Fourth Camera Specifications

• F2.2 aperture; 13 mm focal length; 1.12 m pixel size
• F2.2 aperture; 1/4 sensor size “; Pixel Dimensions: 1.12 m

Fourth Camera Specifications

• 5 MP (Macro)
• 5 MP (Macro)

DESIGN

Dimensions

• 6.24 x 2.90 x 0.31 inch dimensions (158.5 x 73.6 x 7.9 mm)
• Size: 6.27 x 2.88 x 0.34 in (159.3 x 73.1 x 8.6 mm)

Weight

• 6.07 oz in weight (172.0 g)
• 6.53 ounces (185.0 g)

Materials:

• Back: plastic; frame: plastic
• Plastic on the back

Biometrics

• Biometrics include 2D face unlock and an in-screen fingerprint reader.
• Fingerprint recognition on-screen

Keys:

• Volume control on the right, as well as a lock/, unlock key
• Volume control on the right, as well as a lock/, unlock key

Colors

• Prism Crush black, Prism Crush white, Prism Crush pink, and Prism Crush blue are the available colors.
• Prism Crush black, Prism Crush blue, Prism Crush red, and Prism Crush white are all available.

Our Final Thoughts

We hope this post has helped you make a decision about your next phone purchase!

If you’re still unsure, we recommend reading up on the Samsung A31 and Samsung A51.

These two models are very similar but come with a few different features that might be what you’re looking for in your next purchase!

What do you think is more important? The camera or battery life?

Is size really an issue to consider when purchasing a new model of phone?

Let us know which feature set suits your needs best.]

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Frequently Ask Questions