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Darn, it's out of stock
(for now)
(for now)
Out of stock
Galaxy A21s 128GB - Blue - Unlocked
is currently unavailable.
(1,959 reviews)
Customer reviews for Galaxy A21s
Overall rating
4.4/54.4/51,959 verified reviewsRating details
Accessories
4.2/5
Appearance
4.5/5
Battery
4.4/5
Lens & Camera
4.4/5
Overall performance
4.3/5
Packaging
4.5/5
Shipping
4.5/5
Reviews
Reviews
Michael d E.
Verified purchaseReviewed 14/08/2026, United Kingdom.
5/5Hi I was very happy with the quality of the phone as it in perfect condition. However I requested a 128GB model and on looking at the available memory it says its capacity is 64gb see attached photo. However I have already set up my phone and don't want to go through the bother of returning it as apparently from the incorrect memory I am very happy with it. Best wishes Michael
Galaxy A21s 128GB - Blue - Unlocked
Galaxy A21s 128GB - Blue - Unlocked
Condition
Excellent
Purchased
01/08/2026
Julie R.
Verified purchaseReviewed 31/07/2026, United Kingdom.
4.9/5From ordering to receipt, everything as informed. Phone is is great condition and so far no issues. Have previously bought from Back Market and knew they were of good standing
Galaxy A21s 32GB - Black - Unlocked
Galaxy A21s 32GB - Black - Unlocked
Condition
Excellent
Purchased
23/07/2026
Nicoleta R.
Verified purchaseReviewed 09/07/2026, United Kingdom.
5/5Device in excellent condition just as described. My son is very happy.
Galaxy A21s 32GB - Black - Unlocked
Galaxy A21s 32GB - Black - Unlocked
Condition
Excellent
Purchased
27/06/2026
Laura G.
Verified purchaseReviewed 08/06/2026, United Kingdom.
5/5As usual great condition of phone and fantastic service . I've bought a few now (lots of grandkids)and never been disappointed.
Galaxy A21s 32GB - Black - Unlocked
Galaxy A21s 32GB - Black - Unlocked
Condition
Fair
Purchased
27/05/2026
Eddie R.
Verified purchaseReviewed 30/03/2026, United Kingdom.
4.9/5It went very well, newer than my old version of the same phone. I now understand the bio metric operation. I had a problem moving the contents from my old phone by the wi fi system, 2 apps did not transfer well and I had to reload them.
Galaxy A21s 32GB - Black - Unlocked
Galaxy A21s 32GB - Black - Unlocked
Condition
Excellent
Purchased
16/03/2026
Damilola O.
Verified purchaseReviewed 29/12/2025, United Kingdom.
4.8/5I'm okay with it
Galaxy A21s 64GB - Black - Unlocked
Galaxy A21s 64GB - Black - Unlocked
Condition
Good
Purchased
16/12/2025
Kondani K.
Verified purchaseReviewed 31/08/2026, United Kingdom.
5/5It came early than l expected it good condition
Galaxy A21s 32GB - Blue - Unlocked
Galaxy A21s 32GB - Blue - Unlocked
Condition
Excellent
Purchased
31/07/2026
Popular searches
Everything you ever wanted to know about the Galaxy A21s
Durability
Overall performance
Camera
Screen quality
6 GBMemory (GB)
Galaxy A21sModel
UnlockedCarrier compatibility
2020Year of Release
BlueColour
SamsungBrand
4GMobile network
6.5Screen size (in)
Dual Physical SIMSIM card
The Samsung Galaxy A21s is a reliable smartphone designed for everyday use, offering a good balance of performance and features. Launched in May 2020, this device remains a solid choice for users seeking a dependable smartphone experience.
Key features:- Display: 6.5-inch HD+ Infinity-O display
- Processor: Exynos 850
- Camera: Quad-camera system with a 48MP main sensor
- Storage: 128GB internal storage, expandable via microSD
- Connectivity: 4G LTE compatible for reliable mobile data
The Samsung Galaxy A21s is ideal for budget-conscious users, students, or anyone looking for a straightforward smartphone for daily tasks such as browsing, social media, and photography. It provides essential features without the complexity of high-end devices.
Pros & Cons:| Pros | Cons |
|---|---|
| Large display for immersive viewing. | Performance may lag with heavy multitasking. |
| Versatile camera setup for various photography needs. | Plastic build may feel less premium. |
Why refurbished?
Choosing a refurbished Samsung Galaxy A21s allows you to enjoy a quality smartphone while making an eco-conscious choice. Back Market ensures all devices undergo rigorous testing for quality and reliability. Learn more about our quality standards.
- Memory (GB)
- 6 GB
- Model
- Galaxy A21s
- Carrier compatibility
- Unlocked
- Year of Release
- 2020
- Colour
- Blue
- Brand
- Samsung
- Mobile network
- 4G
- Screen size (in)
- 6.5
- SIM card
- Dual Physical SIM
- Storage
- 128 GB
Galaxy A21s
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