Galaxy M31Blue • 128 GB • Dual Physical SIM

Name: Galaxy M31 128GB - Blue - Unlocked
Brand: Samsung
Price: 144.00 EUR
Availability: InStock
Rating: 4.18 (40 reviews)

(40 reviews)

€144.00

Save €135.00

Free delivery by 24 - 25 Aug

Express delivery by 21-24 Aug from €5.00

Restored professionally

Based on up to 100 points of inspection

Customer reviews for Galaxy M31

Overall rating

40 verified reviews

Rating details

Accessories
3.9/5
Appearance
4.4/5
Battery
4.3/5
Lens & Camera
4.4/5
Overall performance
4.2/5
Packaging
4.3/5
Shipping
4.5/5

Reviews

Mr A.
Verified purchase
Reviewed 11/08/2026, Italy.
All good, some signs of wear on the back casing but that has always been the most delicate part of the phone. Otherwise, the screen is perfect, the battery has good life, and overall the phone is like new.
Translated from Italian
Galaxy M31 64GB - Blu
Galaxy M31 64GB - Blu
Condition
Fair
Signs of wear. The body may have a few visible scratches and dents. Items with screens may have light scratches.
Purchased
04/08/2026
Mara D.
Verified purchase
Reviewed 21/02/2025, Italy.
All good the 'good' status reflects the actual aesthetics so it's not exactly perfect but it works great. and even the battery allows some breathing space compared to the S10 which leaves something to be desired.
Translated from Italian
Galaxy M31 128GB - Nero
Galaxy M31 128GB - Nero
Condition
Fair
Signs of wear. The body may have a few visible scratches and dents. Items with screens may have light scratches.
Purchased
03/02/2025
Mark G.
Verified purchase
Reviewed 29/08/2024, United Kingdom.
Excellent battery life. Decent camera. Very satisfied with this phone, mainly because of the battery, usually lasts two full days.
Galaxy M31 64GB - Red - Unlocked
Galaxy M31 64GB - Red - Unlocked
Condition
Good
Light signs of wear. The body may have light micro-scratches. For items with screens, the screen will have no scratches.
Purchased
04/03/2024
Mathieu N.
Verified purchase
Reviewed 20/04/2025, France.
Everything is just perfect!
Translated from French
Galaxy M31 64 Go - Rouge - Débloqué
Galaxy M31 64 Go - Rouge - Débloqué
Condition
Good
Light signs of wear. The body may have light micro-scratches. For items with screens, the screen will have no scratches.
Purchased
08/04/2025
Mika T.
Verified purchase
Reviewed 30/10/2023, United Kingdom.
Phone physically in perfect condition, looks amazing. Software is a little iffy though, it periodically crashes and restarts and sometimes I'm not doing anything so I think it is unlikely user caused (I have left the phone on, not in an app on a desk and it has crashed) I also owned this exact model previously and I never had this issue with one I bought brand new.
Galaxy M31 64GB - Black - Unlocked
Galaxy M31 64GB - Black - Unlocked
Condition
Excellent
Almost no signs of wear. The body may have very light micro-scratches. For items with screens, the screen will have no scratches.
Purchased
16/10/2023
Paul L.
Verified purchase
Reviewed 29/11/2023, United Kingdom.
The M31 phone was delivered quicker than I expected and looks brand new, One problem is that it is set up for India so needs to be changed. I was unablle to copy tht data from my old phone to the M31 using Smart SSwitch as I kept getting the message they weren't connecting wirelessly so I've ordered a USB-C to USB-C connetor. This didn't work either so I copied the data from my old phone via a datacard. Thought the M31 phone loks and works well there was no instruction leaflet as you would get with a new phone. In fact no documentation was provided at all.
Galaxy M31 64GB - Black - Unlocked
Galaxy M31 64GB - Black - Unlocked
Condition
Excellent
Almost no signs of wear. The body may have very light micro-scratches. For items with screens, the screen will have no scratches.
Purchased
17/11/2023
Roberto R.
Verified purchase
Reviewed 03/10/2022, France.
The product is as described. Delivered promptly, excellent tracking. The Samsung updates worked, the device has been in use for several days, the battery holds well and charges quickly even via old USB port. A power cable and headphones were included in the perfectly packaged package, what more could you ask for?
Translated from French
Galaxy M31 128 Go - Bleu - Débloqué
Galaxy M31 128 Go - Bleu - Débloqué
Condition
Fair
Signs of wear. The body may have a few visible scratches and dents. Items with screens may have light scratches.
Purchased
19/09/2022

Everything you ever wanted to know about the Galaxy M31

Durability
Overall performance
Camera
Screen quality

BlueColour
6.4Screen size (in)
UnlockedCarrier compatibility
Triple (3x)Camera Type
Ocean BlueColor (official name)
USB-C + Jack 3.5mmConnector
1080 x 2340Resolution
0,482SAR head
Galaxy M31Model

The Samsung Galaxy M31 is a reliable smartphone that offers a balanced combination of performance and features. Launched in March 2020, this device remains relevant thanks to its solid specifications and user-friendly design.

Key features:

Display: 6.4-inch Super AMOLED, FHD+ resolution
Processor: Exynos 9611
Camera: Quad-camera setup with a 64MP main sensor
Storage: 128GB internal storage with expandable memory via microSD
Connectivity: 4G LTE compatible, providing reliable mobile data access.

Who is this for?

The Samsung Galaxy M31 is ideal for users looking for a dependable smartphone for everyday tasks, such as social media, browsing, and photography. It's a suitable choice for students or professionals who need a capable device without the latest flagship price tag.

Pros & Cons: Pros Cons Vibrant Super AMOLED display for an immersive viewing experience. Performance may lag during intensive multitasking. Versatile quad-camera system for various photography needs. Not water-resistant, limiting outdoor usability in rain.
Why refurbished?

Choosing a refurbished Samsung Galaxy M31 allows you to enjoy a feature-rich smartphone while being eco-conscious. Back Market ensures that all refurbished devices undergo stringent quality checks to meet high standards. Learn more about our quality standards.

Colour: Blue
Screen size (in): 6.4
Carrier compatibility: Unlocked
Camera Type: Triple (3x)
Color (official name): Ocean Blue
Connector: USB-C + Jack 3.5mm
Resolution: 1080 x 2340
SAR head: 0,482
Model: Galaxy M31
Memory (GB): 6 GB
Storage: 128 GB
SD Card Slot: microSDXC
Depth: 0,89 cm
Compatible with latest Update: No
Main camera: 64 megapixels
Foldable: No
Weight: 191 g
Screen type: Super AMOLED
Manufacturer Ref: SM-M315F/DS
Brand: Samsung
Width: 7,51 cm
Network: 4G
Year of Release: 2020
OS: Android
Serie: Samsung Galaxy M
Front camera: 32 megapixels
SAR body: 1,127
SIM card: Dual Physical SIM
Height: 15,92 cm
SAR body part: 2,6

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Galaxy M31Blue • 128 GB • Dual Physical SIM

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Customer reviews for Galaxy M31

Overall rating

Rating details

Reviews

Reviews

Mr A.

Mara D.

Mark G.

Mathieu N.

Mika T.

Paul L.

Roberto R.

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Everything you ever wanted to know about the Galaxy M31

Durability

Overall performance

Camera

Screen quality

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