Compare the Samsung Galaxy M31 vs Samsung Galaxy A31

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Samsung has been quite busy in 2020 they have launched flagships, flagship killer there are 20 phones a unique foldable Z flip refers to the A-series will be A51 and A71 and now it’s time for the M31 series and A31 to get a much-needed facelift. Let’s check out the M31 vs A31 and take a much closer look.

Both view

Samsung Galaxy M31 vs Samsung Galaxy A31

Camera 5

Key Specification

Samsung Galaxy M31Samsung Galaxy A31
ChipsetExynos 9611 (10nm)Mediatek MT6768 Helio P65 (12nm)
Display6.4 inches6.4 inches
Memory6 GB6 GB
Camera48+8+5+5 MP64+8+5+5 MP
Fingerprint SensorOn-screenRear

Samsung Galaxy M31

Samsung makes some of the best smartphone displays and the M31 panel is no exception to this. The display is bright and vibrant thanks to a Super AMOLED technology measures in at 6.4-inches and offers a full HD plus resolution. There’s also built-in dark mode so you can turn that on if you like all that everything moreover you can also calibrate the display to your liking by choosing between natural and vivid mode and fine-tuning the panel’s white balance.

Samsung Galaxy A31

The Galaxy A31 comes with a 6.4-inch plus Super AMOLED display with the infinity design. We still don’t have a lot of AMOLED phones in the mid-range and the budget segment.


Samsung Galaxy M31Samsung Galaxy A31
Dimensions159.2 x 75.1 x 8.9 mm159.3 x 73.1 x 8.6 mm
Weight191 grams185 grams
Screen Size6.4 inches6.4 inches
ColorBlack, BluePrism Crush Black, Prism Crush Blue, Prism Crush Red, Prism Crush White
Display TypeSuper AMOLEDSuper AMOLED
Build MaterialGlass front (Gorilla Glass 3), plastic back, plastic frame

Samsung Galaxy M31 vs Samsung Galaxy A31 view

Punch Hole 1

Samsung Galaxy M31

In terms of design the Samsung Galaxy M31 does very little to differentiate itself from its predecessors in fact there hasn’t been much change in the design since the M30 which launched a year ago. With the M31 you will get the same external chassis that has been constructed using polycarbonate along with the same 6.4-inch Super AMOLED display which features an infinity U notch at the center.

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Despite packing a 6000 mAh battery the smartphone is on the lighter side and tips the scales at just 185 grams and that’s not the only benefit of going the polycarbonate route the handset is more sturdy compared to the all-glass offering.

Samsung Galaxy A31

The design that’s the first thing A30 and A30s owners from last year will notice with this phone Samsung basically made some minor updates to the housing and setup that now matched the higher-end A51 and A71 phones that were also released this year. Samsung’s A-series comes with a plastic super shiny glossy material that’s made to just mimic glass with polished chrome plastic accents all around but that’s all fine. The phone, fortunately, doesn’t feel cheap at all.

The 6.4-inch form factor for the A31 is pretty much perfect it’s a tall 20 by 9 aspect ratio but it still feels comfortable and the phone can easily be used one-handed. You’re getting a nearly 85% screen to body ratio, so there’s not a whole lot of wasted space and the sloping sides and thinner edges overall just make the phone feel slim comfortable and easy to handle.


Samsung Galaxy M31Samsung Galaxy A31
Samsung Exynos 9 Octa 9611
MediaTek Helio P65
GPUMali-G72 MP3Mali-G52 MC2
Internal storage64/128 GB64/128 GB
Storage expansionYes Up to 512 GBYes Up to 512 GB
OSAndroid 10, One UI 2.0Android 10, One UI 2.0



Samsung Galaxy M31

The Galaxy M31 is powered by an in-house Exynos 9611 SoC optical processor that works alongside 6GB of RAM and either 64GBb or 128GB of built-in storage with expandable storage.

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Samsung Galaxy A31

The specs and performance since this is probably the thing people have been talking about the most the A31 comes in a couple of different variations the difference you’ll see are in the built-in storage and the RAM options you can get either 64 or 128 Gigabytes of built-in storage both options offer SD card expansion so that’s great to see and either 4 or 6 Gigabytes of RAM.


Samsung Galaxy M31Samsung Galaxy A31
Rear64+8+5+5 MP48+8+5+5 MP
Front32 MP20 MP
Video recording1920×1080 @ 30 fps1920×1080 @ 30 fps

M31 Rear camera

A31 Camera

Samsung Galaxy M31

Samsung Galaxy M31 is backed by a Quad camera set up at the back comprising a 64-megapixel main sensor and 8-megapixel ultra-wide shooter a 5-megapixel depth sensor and a 5-megapixel macro lens which will let you get as close as 4 centimeters to a subject. For selfies, the smartphone gets a 32-megapixel front camera with F2.4 Aperture.

Samsung Galaxy A31

The A31 packs a Quad camera setup which includes a 48 megapixel F 2.0 main lens 8-megapixel ultra-wide 5-megapixel macro lens and 5-megapixel depth sensor. There’s a lot of hardware to work with but not a lot of software features to make good use of its video recording limited to 1080p 30fps. There’s no night mode, no slow-motion, no video stabilization.


Samsung Galaxy M31Samsung Galaxy A31
Headphone jack3.5 mm3.5 mm
Audio FeaturesDolby AtmosDolby Atmos

Audi oJack

Samsung Galaxy M31

The Galaxy M31 get a headphone jack or USB type-c port and the speaker grille towards the bottom of the phone the volume rocker and the power button can be found on the smartphone’s right-hand side with triple SIM slot position on the left.

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Samsung Galaxy A31

Samsung would upgrade on their a series phones is the out loud listening experience the single bottom speaker is mostly fine it gets the job done but when even LG offers dual stereo speakers on their cheapest budget phones like the K 51 you know there’s room for improvements.

Samsung has ever really highlighted their speaker set up on even their most expensive flagships but stereo sound should just be a standard nowadays. There’s headphone jack down below as well so you still have the freedom to listen to your content.

Battery Life

Samsung Galaxy M31Samsung Galaxy A31
Capacity6000 mAh5000 mAh
Quick ChargingYesYes
TalktimeUp to 48 Hours(4G)Up to 33 Hours(4G)


Samsung Galaxy M31Samsung Galaxy A31
BluetoothYes v5.0Yes v5.0
WifiYes Wi-Fi 802.11, ac/b/g/n/n 5GHzYes Wi-Fi 802.11, ac/b/g/n/n 5GHz
SensorsLight sensor, Proximity sensor, Accelerometer, GyroscopeLight sensor, Proximity sensor, Accelerometer, Gyroscope
Side view 1
Volume control

Which is better!

Samsung Galaxy M31

  1. The M31 packs with 6000 mAh capacity battery paired with the 15-watt fast charger. Battery life just has never been an issue in fact the battery capacity really is probably one of the other big reasons this phone is such a good value.
  2. It’s a bit bigger than a lot of other phones in its price range and with a good balance of internal specs and screen technology.
  3. The M31 only retails in online stores no physical storage purchase option available.
  4. Galaxy M31 rear primary camera comes with a bigger sensor i.e. 64MP compared to 48MP in Galaxy A31.

Samsung Galaxy A31

  1. It is all about three important factors the display the cameras and the battery the Super AMOLED display looks great the cameras seem very good.
  2. Galaxy A31 comes with a rear fingerprint scanner compared to a traditional rear-mounted fingerprint sensor in Galaxy A31.