Galaxy S21 5G 128GB - Purple - Unlocked

Customer reviews for Galaxy S21 5G

Overall rating

19,209 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
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
Elioth N.
Verified purchase
Reviewed 15/06/2025, Ireland.
Livraison extrêmement rapide (le lendemain de ma commande) et tout à fait satisfaisante. Plusieurs années que je commande sur BackMarket, je n'ai jamais été déçu !
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
02/06/2025
Jethro K.
Verified purchase
Reviewed 17/02/2025, Ireland.
Quick delivery. Item in excellent condition and working perfectly so far. Very satisfied with the item
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
03/02/2025
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

Galaxy S21 5GModel
NoFoldable
15.17 cmHeight
Phantom violetColor (official name)
AndroidOS
SamsungBrand
6.2Screen size (in)
2021Year of Release
5GNetwork

The Samsung Galaxy S21 5G is a flagship smartphone that combines cutting-edge technology with a sleek design. Released in January 2021, this model remains a strong contender in the smartphone market, offering impressive features and performance.

Key features:

Display: 6.2-inch Dynamic AMOLED 2X, FHD+ resolution
Processor: Exynos 2100 (International) or Snapdragon 888 (USA)
Camera: Triple rear camera system with 12MP wide, 64MP telephoto, and 12MP ultra-wide lenses
Connectivity: 5G capable for ultra-fast internet access
Operating System: Ships with Android 11, upgradable to later versions

Who is this for?

The Galaxy S21 5G is ideal for users who seek a powerful smartphone with a vibrant display and excellent camera capabilities. It suits professionals, content creators, and anyone who enjoys multimedia consumption on the go.

Pros & Cons: Pros Cons Stunning display with vibrant colours and deep blacks. No expandable storage option. Excellent camera performance for photography enthusiasts. Battery life may not last a full day under heavy use.
Why refurbished?

Choosing a refurbished Samsung Galaxy S21 5G allows you to enjoy high-end features without the brand-new price tag. Back Market ensures each device is thoroughly tested and certified for quality. Learn more about our quality standards.

Model: Galaxy S21 5G
Foldable: No
Height: 15.17 cm
Color (official name): Phantom violet
OS: Android
Brand: Samsung
Screen size (in): 6.2
Year of Release: 2021
Network: 5G
Resolution: 1080 x 2400
SAR body: 1.51
Front camera: 10 megapixels
SAR head: 0.46
Compatible with latest Update: Yes
Depth: 0.79 cm
Width: 7.12 cm
Screen type: Dynamic AMOLED 2X
SAR body part: 1.51
Weight: 169 g
Carrier compatibility: Unlocked
SIM card: Dual Physical SIM + eSIM
Colour: Purple
Storage: 128 GB
Main camera: 12 megapixels
Memory (GB): 8 GB
SD Card Slot: No
Manufacturer Ref: SM-G991B/DS
Serie: Samsung Galaxy S

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Galaxy S21 5G 128GB - Purple - Unlocked

Customer reviews for Galaxy S21 5G

Overall rating

Rating details

Reviews

Reviews

Fiona M.

Liam D.

John M.

James F.

Elioth N.

Jethro K.

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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