Galaxy S21 5GGrey • 128 GB • Physical SIM + eSIM

Name: Galaxy S21 5G 128GB - Grey - Unlocked
Brand: Samsung
Price: 212.00 EUR
Availability: InStock

(19,031 reviews)

€212.00

Save €814.00

Free delivery by 3 - 6 Jul

Express delivery by 30 Jun-1 Jul from €5.00

Restored professionally

Based on up to 100 points of inspection

Customer reviews for Galaxy S21 5G

Overall rating

19,031 verified reviews

Rating details

Accessories
4.1/5
Appearance
4.5/5
Battery
4/5
Lens & Camera
4.5/5
Overall performance
4.2/5
Packaging
4.5/5
Shipping
4.6/5

Reviews

Fiona M.
Verified purchase
Reviewed 10/02/2025, Ireland.
I can noy fault my experience with Back Market. I ordered the phone at 8.30 am on thursday and it was delivered to Ireland by 12pm on the Friday, the next day. The phone is perfect. Amazing quality. I will definitely buy more.
Galaxy S21 5G 256GB - Purple - Unlocked
Galaxy S21 5G 256GB - Purple - 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
30/01/2025
Liam D.
Verified purchase
Reviewed 12/08/2024, Ireland.
Excellent all around. Site was easy to use and kept me informed of postal delivery etc. I got two o hones and they are both excellent. The description was right on the mark and I will be definitely using thus site again.
Galaxy S21 5G 128GB - Grey - Unlocked
Galaxy S21 5G 128GB - Grey - 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
29/07/2024
Anne H.
Verified purchase
Reviewed 10/09/2023, Ireland.
I love my new phone, it really does feel brand new. Being able to go sim only will halve my phone bill. The whole process was very easy, have recommended Back Market to several people already. No more massive bills, delighted
Galaxy S21 5G 128GB - Purple - Unlocked
Galaxy S21 5G 128GB - Purple - 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
26/08/2023
John M.
Verified purchase
Reviewed 01/10/2025, Ireland.
Great, it arrived on time and was simple to transfer all the data across ftom my old mobile to my new one.
Galaxy S21 5G 128GB - Grey - Unlocked
Galaxy S21 5G 128GB - Grey - Unlocked
Condition
Fair
Signs of wear. The body may have a few visible scratches and dents. Items with screens may have light scratches.
Purchased
10/09/2025
James F.
Verified purchase
Reviewed 15/12/2024, Ireland.
I'm very happy with my purchase it's in mint condition and working perfectly. I would recommend Back Market to anyone
Galaxy S21 5G 128GB - Purple - Unlocked
Galaxy S21 5G 128GB - Purple - Unlocked
Condition
Premium
Close to perfection. The body may have tiny micro-scratches. For items with screens, the screen will be flawless.
Purchased
25/11/2024
Conor F.
Verified purchase
Reviewed 09/08/2023, Ireland.
First time buying a refurbished phone and will continue to by refurbished. . . . . . I have been using the phone for a while now and it is next to new, I am very happy with it and I will be consulting Back Market should I need any other devices. I would highly recommend!
Galaxy S21 5G 128GB - Grey - Unlocked
Galaxy S21 5G 128GB - Grey - 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
26/07/2023
Ciara C.
Verified purchase
Reviewed 08/09/2025, Ireland.
Paid for a premium refurbished unlocked phone. When the phone came it was locked to another network. I had to return the phone leaving me with no phone for some days. I was not impressed. Will not use this site again.
Galaxy S21 5G 128GB - Grey - Unlocked
Galaxy S21 5G 128GB - Grey - 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
27/08/2025

Everything you ever wanted to know about the Galaxy S21 5G

Durability
Overall performance
Camera
Screen quality

Dynamic AMOLED 2XScreen type
UnlockedCarrier compatibility
Samsung Galaxy SSerie
NoSD Card Slot
12 megapixelsMain camera
171 gWeight
6.2Screen size (in)
128 GBStorage
YesCompatible with latest Update

The Galaxy S21 5G is a flagship smartphone from Samsung, released in January 2021. This model features a sleek design and advanced capabilities, making it suitable for users who appreciate both style and performance.

Key features:

Display: 6.2-inch Dynamic AMOLED 2X, FHD+ resolution
Processor: Exynos 2100 (or Snapdragon 888, depending on the region)
Camera: Triple rear cameras with a 12MP ultra-wide, 12MP wide, and 64MP telephoto lens
Connectivity: 5G compatible for fast data speeds
Operating System: Ships with Android 11, upgradable to the latest versions

Who is this for?

The Galaxy S21 5G is ideal for professionals, content creators, and everyday users looking for a powerful smartphone with a versatile camera system. It suits those who enjoy streaming, gaming, and photography, providing a balanced experience compared to newer models like the Galaxy S22.

Pros & Cons:

Pros	Cons
High-quality display with vibrant colours and deep blacks.	No expandable storage option.
Solid camera performance in various lighting conditions.	Battery life may not last as long as newer models.

Why refurbished?

Choosing a refurbished Galaxy S21 5G allows you to access premium features while being environmentally conscious. Each device is rigorously tested to ensure quality and reliability. Learn more about our quality standards.

Screen type: Dynamic AMOLED 2X
Carrier compatibility: Unlocked
Serie: Samsung Galaxy S
SD Card Slot: No
Main camera: 12 megapixels
Weight: 171 g
Screen size (in): 6.2
Storage: 128 GB
Compatible with latest Update: Yes
Memory (GB): 8 GB
Camera Type: Triple (3x)
Color (official name): Phantom Gray
Resolution: 1080 x 2400
Front camera: 10 megapixels
Year of Release: 2021
SIM card: Physical SIM + eSIM
Model: Galaxy S21 5G
Brand: Samsung
Connector: USB-C
Foldable: No
Colour: Grey
Manufacturer Ref: SM-G991B
OS: Android
SAR head: 0.46
Network: 5G
SAR body: 1.51

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Galaxy S21 5GGrey • 128 GB • Physical SIM + eSIM

Galaxy S21 5GGrey • 128 GB • Physical SIM + eSIM

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Customer reviews for Galaxy S21 5G

Overall rating

Rating details

Reviews

Reviews

Fiona M.

Liam D.

Anne H.

John M.

James F.

Conor F.

Ciara C.

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Everything you ever wanted to know about the Galaxy S21 5G

Durability

Overall performance

Camera

Screen quality

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