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Galaxy M21 64GB - Black - Unlocked

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Customer reviews for Galaxy M21

Overall rating

21 verified reviews

Rating details

Accessories
3.9/5
Appearance
4.3/5
Battery
4.3/5
Lens & Camera
4.2/5
Overall performance
4.2/5
Packaging
4.2/5
Shipping
4.6/5

Reviews

Lynn H.
Verified purchase
Reviewed 10/11/2024, United Kingdom.
Easy to use website, lots of choice. Extremely happy with my new refurbished phone, my second one with Backmarket,unfortunately the first refurbished phone I had wouldn't keep its charge,hence this new one.
Galaxy M21 64GB - Black - Unlocked
Galaxy M21 64GB - Black - 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
25/10/2024
Sana M.
Verified purchase
Reviewed 11/03/2026, United Kingdom.
Galaxy M21 64GB - Green - Unlocked
Galaxy M21 64GB - Green - 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
20/02/2026
Picaduros D.
Verified purchase
Reviewed 23/07/2025, France.
A device that "fulfils" my wish of not having a "tablet" in my pocket. Very satisfactory condition even with this correct mention. Really prompt delivery (less than 24 hours!) even though this option was not ticked. Second device ordered from you and still satisfied.
Translated from French
Galaxy M21 64 Go - Bleu - Débloqué
Galaxy M21 64 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
09/07/2025
Marinette V.
Verified purchase
Reviewed 17/12/2023, France.
This is my 2nd experience with Back Market, delivery ahead of schedule! Getting it up and running went very well. The only downside was that I hadn't thought to order the appropriate protection and I had a lot of trouble finding it!
Translated from French
Galaxy M21 64 Go - Bleu - Débloqué
Galaxy M21 64 Go - Bleu - 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
06/12/2023
Thomas K.
Verified purchase
Reviewed 22/10/2023, Germany.
The product is as described and expected . The service and contact is great . I find shipping with FedEx a bit inconvenient because you have to be at home for delivery. DHL would have worked better for me.
Translated from German
Galaxy M21 64GB - Blau - Ohne Vertrag
Galaxy M21 64GB - Blau - Ohne Vertrag
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
28/09/2023
Christian M.
Verified purchase
Reviewed 26/10/2025, France.
The appliance was fully compliant and the delivery was perfect, with a friendly and flexible driver. Perfect.
Translated from French
Galaxy M21 64 Go - Bleu - Débloqué
Galaxy M21 64 Go - Bleu - 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
10/10/2025
Laurence G.
Verified purchase
Reviewed 28/12/2025, France.
Galaxy M21 64 Go - Bleu - Débloqué
Galaxy M21 64 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
18/12/2025

Everything you ever wanted to know about the Galaxy M21

Durability
Overall performance
Camera
Screen quality

64 GBStorage
1080 x 2340Resolution
UnlockedCarrier compatibility
188 gWeight
6.4Screen size (in)
Samsung Galaxy MSerie
20 megapixelsFront camera
BlackColour
Super AMOLEDScreen type

The Galaxy M21 is a reliable smartphone that combines essential features with a user-friendly experience. Released in March 2020, this model is designed for users who need a dependable device for everyday tasks without the need for high-end specifications.

Key features:

Release Date: March 2020
Display: 6.4-inch Super AMOLED, FHD+ resolution
Processor: Exynos 9611
Camera: Triple rear camera setup with 48MP main sensor
Connectivity: 4G compatible, providing reliable connectivity for browsing and streaming.

Who is this for?

The Galaxy M21 is ideal for students, casual users, and anyone looking for a smartphone that covers basic needs such as social media, browsing, and photography. It is well-suited for users who do not require the latest features but still want a solid device.

Pros & Cons:

Pros	Cons
Vibrant Super AMOLED display for an enjoyable viewing experience.	Performance may lag during intensive multitasking.
Decent camera quality for everyday photography.	No 5G support, limiting future-proofing.

Why refurbished?

Choosing a refurbished Galaxy M21 allows you to access a reliable smartphone while being eco-conscious. Back Market ensures that all devices undergo strict quality checks to guarantee performance and condition. Learn more about our quality standards.

Storage: 64 GB
Resolution: 1080 x 2340
Carrier compatibility: Unlocked
Weight: 188 g
Screen size (in): 6.4
Serie: Samsung Galaxy M
Front camera: 20 megapixels
Colour: Black
Screen type: Super AMOLED
Model: Galaxy M21
Mobile network: 4G
Colour (official name): Raven Black
Brand: Samsung
Year of Release: 2020
SIM card: Physical SIM
Manufacturer Ref: SM-M215F
SD Card Slot: microSDXC
Compatible with latest Update: No
OS: Android
Main camera: 48 megapixels
Foldable: No
Memory (GB): 4 GB

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Galaxy M21 64GB - Black - Unlocked

Customer reviews for Galaxy M21

Overall rating

Rating details

Reviews

Reviews

Lynn H.

Sana M.

Picaduros D.

Marinette V.

Thomas K.

Christian M.

Laurence G.

Everything you ever wanted to know about the Galaxy M21

Durability

Overall performance

Camera

Screen quality

Welcome to Back Market