Samsung
Choose location
Suggested searches
Items
Suggested searches
Items
Popular searches
Darn, it's out of stock
(for now)
(for now)
Out of stock
Galaxy A21s 128GB - White - Unlocked
is currently unavailable.
(2 reviews)
Customer reviews for Galaxy A21s
Overall rating
5/55/52 verified reviewsRating details
Battery
4.6/5
Shipping
4.6/5
Lens & Camera
4.6/5
Accessories
4/5
Packaging
4.6/5
Overall performance
4.2/5
Appearance
4.4/5
Reviews
Reviews
Frank V.
Verified purchaseReviewed 17/8/25, Australia.
5/5Phone was received very quickly in very good packaging. It appeared brand new, the battery performance is excellent, and the 128GB storage and 6MB RAM is wonderful. Back Market was a pleasure to do business with. Thank you.
Galaxy A21s 128GB - White - Unlocked
Galaxy A21s 128GB - White - Unlocked
Condition
Premium
Purchased
31/7/25
Elizabeth P.
Verified purchaseReviewed 11/3/25, Australia.
5/5The phone arrived in a timely manner, and a neat and tidy phone it is.
Galaxy A21s 32GB - Black - Unlocked
Galaxy A21s 32GB - Black - Unlocked
Condition
Fair
Purchased
22/2/25
Trevor C.
Verified purchaseReviewed 5/8/26, Australia.
4.8/5
Galaxy A21s 128GB - Black - Unlocked
Galaxy A21s 128GB - Black - Unlocked
Condition
Good
Purchased
24/7/26
Petra S.
Verified purchaseReviewed 15/3/26, Australia.
4.9/5It really is like a brand new phone, i am very impressed
Galaxy A21S 64GB - White - Unlocked
Galaxy A21S 64GB - White - Unlocked
Condition
Excellent
Purchased
5/3/26
Kaveni P.
Verified purchaseReviewed 30/9/26, Australia.
4/5Good !
Galaxy A21s 32GB - Black - Unlocked
Galaxy A21s 32GB - Black - Unlocked
Condition
Excellent
Purchased
19/9/26
Rachel M.
Verified purchaseReviewed 22/7/26, Australia.
2.4/5It's very laggy
Galaxy A21s 32GB - Black - Unlocked
Galaxy A21s 32GB - Black - Unlocked
Condition
Excellent
Purchased
11/7/26
Popular searches
Galaxy A21sSamsung Galaxy A15iPhone 16 Pro MaxiPhone 16 ProiPhone 16iPhone 16 PlusGoogle Pixel 9iPhone 6sHigh-techGalaxy Z Fold6best sellerGalaxy S8Google Pixel 8 ProGalaxy S7Galaxy S9Galaxy S24 UltraSamsung Galaxy Note 10 vs. iPhone 11Xiaomi Mi 9 vs. Galaxy S10Samsung Galaxy Note 10 vs. Galaxy S10Galaxy S20 Plus vs. Galaxy S20Samsung Galaxy Note 10 vs. Galaxy Note 10 Plus
Everything you ever wanted to know about the Galaxy A21s
Durability
Overall performance
Camera
Screen quality
4 GBMemory (GB)
AndroidOperating system
48 megapixelsMain camera
6.5Screen size (in)
WhiteColour
Galaxy A21sModel
SamsungBrand
4GNetwork
Dual Physical SIMSIM card
The Galaxy A21s is a mid-range smartphone offering a balance of features suitable for everyday use. With its 128GB storage capacity, it provides ample space for apps, photos, and media. This model is unlocked, making it compatible with various carriers and ideal for users who prefer flexibility and affordability.
Key features:- Model: Galaxy A21s
- Storage: 128GB internal storage
- Display: 6.5-inch PLS IPS LCD, HD+ resolution
- Processor: Exynos 850 octa-core chipset
- Camera: Quad rear camera system with 48MP main sensor
- Connectivity: 4G LTE, Wi-Fi, Bluetooth 5.0, USB-C port
The Galaxy A21s is suited for users seeking a reliable, budget-friendly smartphone for basic tasks, social media, and media consumption. It’s ideal for students, casual users, or those who want an unlocked device for flexible carrier choices.
Pros & Cons:| Pros | Cons |
|---|---|
| Large display suitable for media viewing. | HD+ resolution may not satisfy users seeking full HD or higher. |
| Expandable storage via microSD card slot. | Processor is entry-level, limiting high-performance tasks. |
| Unlocked for carrier flexibility. | No 5G support—only 4G LTE connectivity. |
Why refurbished?
Opting for a refurbished Galaxy A21s provides a practical choice for those wanting a functional smartphone without the cost of a new device. Each device is tested and restored to high standards, ensuring reliable performance. Learn more about our quality standards.
- Memory (GB)
- 4 GB
- Operating system
- Android
- Main camera
- 48 megapixels
- Screen size (in)
- 6.5
- Colour
- White
- Model
- Galaxy A21s
- Brand
- Samsung
- Network
- 4G
- SIM card
- Dual Physical SIM
- Weight
- 192 oz
- Compatible with latest Update
- No
- Color (official name)
- White
- Release year
- 2020
- Resolution
- 720 x 1600
- Card slot
- microSDXC
- Screen type
- PLS LCD
- Foldable
- No
- Front camera
- 13 megapixels
- Manufacturer version
- SM-A217F
- Serie
- Samsung Galaxy A
- Carrier compatibility
- Unlocked
- Storage
- 128 GB
Galaxy A21s
Related articles
SamsungSamsung Galaxy S25 Ultra vs S24 Ultra: is it worth the upgrade? | Back Market
SamsungSamsung Galaxy S24 series review: Is it still worth it in 2025? | Back Market
SamsungIs the Samsung S9 still a good phone to buy? | Back Market
SamsungSamsung Galaxy S25 series review: Is it worth it? | Back Market
SamsungSamsung Galaxy S24 vs. Google Pixel 8: How these Androids compare | Back Market
NewsNew vs. Refurbished: The Environmental Impact of the Tech Industry | Back Market
Welcome to Back Market
The best prices for high-quality reborn tech by sellers we’ve checked and vetted. We don’t mind if you Google us.
Get to know us
- 1-year warranty
- Free standard shipping
- Free 30-day returns
- Friendly customer service
product-page-e2e-translation-check-en-au