Galaxy M21Blue • 64 GB • Dual Physical SIM

(23 reviews)

£91.00

before trade-in

Save £98.00

Free delivery by 6 - 8 Jun

Restored professionally

Based on up to 100-points of inspection

Customer reviews for Galaxy M21

Overall rating

23 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

UnlockedCarrier compatibility
188 gWeight
4 GBMemory (GB)
0,492SAR head
Galaxy M21Model
Dual Physical SIMSIM card
NoCompatible with latest Update
NoFoldable
microSDXCSD Card Slot

The Samsung Galaxy M21 is a reliable smartphone that was released in March 2020. This device stands out for its solid performance and impressive battery life, making it a suitable option for everyday users looking for a dependable smartphone experience.

Key features:

Display: 6.4-inch Super AMOLED, FHD+ resolution
Processor: Exynos 9611
Camera: Triple rear camera setup with 48MP main sensor
Operating System: Ships with Android 10
Connectivity: 4G compatible for reliable internet access.

Who is this for?

The Samsung Galaxy M21 is ideal for students, casual users, and anyone seeking a smartphone that balances performance with essential features. It’s a great choice for users who enjoy media consumption thanks to its vibrant display and long-lasting battery.

Pros & Cons:

Pros	Cons
Large and vibrant display for an immersive viewing experience.	Processor may lag with heavy multitasking.
Good camera performance for everyday photography.	Limited software updates compared to flagship models.

Why refurbished?

Choosing a refurbished Samsung Galaxy M21 is an eco-conscious decision that allows you to enjoy a quality smartphone while contributing to sustainability. Back Market ensures each device undergoes rigorous testing to meet high-quality standards. Learn more about our quality standards.

Carrier compatibility: Unlocked
Weight: 188 g
Memory (GB): 4 GB
SAR head: 0,492
Model: Galaxy M21
SIM card: Dual Physical SIM
Compatible with latest Update: No
Foldable: No
SD Card Slot: microSDXC
Connector: USB-C + Jack 3.5mm
Camera Type: Triple (3x)
Mobile network: 4G
Colour (official name): Midnight Blue
Height: 15,9 cm
Storage: 64 GB
Screen size (in): 6.4
Screen type: Super AMOLED
SAR body: 1,13
Serie: Samsung Galaxy M
Depth: 0,89 cm
OS: Android
Manufacturer Ref: SM-M215F/DSN
Colour: Blue
Main camera: 48 megapixels
Resolution: 1080 x 2340
Year of Release: 2020
Brand: Samsung
Front camera: 20 megapixels
Width: 7,51 cm

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Galaxy M21Blue • 64 GB • Dual Physical SIM

Galaxy M21Blue • 64 GB • Dual Physical SIM

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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.

Popular searches

Everything you ever wanted to know about the Galaxy M21

Durability

Overall performance

Camera

Screen quality

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