Samsung Galaxy A21s Deals - September 2026
14 refurbished deals available - SIM-free from £64.00.
Samsung Galaxy A21s 64GB deals
The Samsung Galaxy A21s is in our catalog but no UK retailer currently stocks it.
Spec scores
£200-£399 Phones · 198 phones
Performance
1.2
/5
Display
1.4
/5
Rear Camera
1.4
/5
Front Camera
2.8
/5
Battery
2.5
/5
Color
All
Black
Blue
Red
White
Storage
All
32GB
64GB
Someone looking for an inexpensive, long-lasting phone for calls, messages and light browsing, such as a backup handset or a first phone for a child, where the lack of ongoing security updates is not a dealbreaker.
Samsung Galaxy A21s SIM Free (4 deals)
Filters
Grade B
Galaxy A21s 64GB (Blue)
Cost breakdown
Cashback:
£0.00
Upfront Cost:
£78.99
Grade B
Galaxy A21s 64GB (Black)
Cost breakdown
Cashback:
£0.00
Upfront Cost:
£79.99
Grade B
Galaxy A21s 64GB (White)
Cost breakdown
Cashback:
£0.00
Upfront Cost:
£79.99
Grade B
Galaxy A21s 64GB (Blue)
Cost breakdown
Cashback:
£0.00
Upfront Cost:
£113.00
Photos
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Images: Samsung
About the Samsung Galaxy A21s
The Galaxy A21s was Samsung's 2020 budget pick, aimed squarely at people who wanted a big screen and a battery that would not give up by teatime. The 5,000mAh cell delivers on that promise, and the Exynos 850 is efficient enough to stretch it across two days of undemanding use. Beyond endurance, though, it is a phone built on compromises. The 6.5-inch screen is only HD+, so text and video look noticeably softer than on Samsung's mid-range AMOLED models, and the 48MP main camera produces usable daylight photos but falls apart quickly indoors. Four rear lenses sounds generous, but the 2MP macro and depth sensors add almost nothing. It does keep a headphone jack, a microSD slot and a rear-mounted fingerprint reader, all things newer phones have quietly dropped. The important caveat is software: Samsung stopped issuing security updates for the A21s in July 2024, so it is no longer being patched. That makes it hard to recommend as a main phone today, though it still functions perfectly well as a spare, a child's first handset or a device kept purely for calls and messaging.
Expert Rating
5.0
(1 review)
Price History
Tracking the best prices since 27 Apr 2026.
Samsung Galaxy A21s vs Samsung Galaxy A12 - Key Differences
| Feature | Samsung Galaxy A21s | Samsung Galaxy A12 |
|---|---|---|
| Display | 6.5-inch PLS TFT, HD+ 720 x 1600 | 6.5-inch IPS LCD, HD+ 720 x 1600 |
| Chipset | Exynos 850 (8nm) | MediaTek Helio P35 |
| Ultrawide camera | 8MP | 5MP |
| Front camera | 13MP | 8MP |
| Battery | 5,000 mAh, 15W charging | 5,000 mAh, 15W charging |
| Fingerprint reader | Rear-mounted | Side-mounted in the power button |
| microSD support | Up to 512GB | Up to 1TB |
| SIM-free price | Not available | From £48.00 |
Frequently asked questions
Is the Samsung Galaxy A21s worth buying?
The Galaxy A21s is hard to recommend as a main phone now that Samsung ended its security updates in July 2024. Its 5,000mAh battery, headphone jack and microSD slot remain genuinely useful, so it still has a role as a cheap spare or a first phone for a child. For anything involving banking or work accounts, choose a phone that is still being patched.
How long does the Samsung Galaxy A21s battery last?
The Galaxy A21s pairs a 5,000mAh battery with the efficient 8nm Exynos 850 and a low-resolution HD+ screen, which is a combination that favours endurance. Light users can realistically get close to two days between charges. Charging is 15W, so refilling it takes a couple of hours.
Does the Samsung Galaxy A21s have a headphone jack and microSD slot?
Yes to both. The Galaxy A21s has a 3.5mm headphone jack for wired earphones and a microSD slot that accepts cards up to 512GB. That expansion is worth using, since the entry-level configurations ship with just 32GB of internal storage.
Is the Samsung Galaxy A21s camera good?
The Galaxy A21s takes reasonable photos outdoors with its 48MP main camera, but image quality drops off sharply in low light. The 8MP ultrawide is handy for group shots and scenery, while the 2MP macro and depth sensors are largely there to pad the specification. Video is limited to 1080p at 30fps.
How does the Samsung Galaxy A21s compare to the Galaxy A12?
The two are closely matched budget phones with the same 6.5-inch HD+ screen size, 5,000mAh battery and 15W charging. The A21s has the better selfie camera at 13MP against 8MP and uses Samsung's efficient Exynos 850, while the A12 moves the fingerprint reader to the side-mounted power button and supports larger microSD cards. Neither is still receiving security updates.
Does the Samsung Galaxy A21s support 5G?
No. The Galaxy A21s is a 4G-only phone, so it connects to LTE networks rather than 5G. In practice that is rarely a limitation for messaging, streaming and browsing on UK networks, but it does mean the phone cannot take advantage of the faster speeds a 5G plan offers.
Samsung Galaxy A21s Specifications
Spec Scores
£200-£399 Phones · 198 phones
- Exynos 850 (8 nm)
- Octa-core (4x2.0 GHz Cortex-A55 & 4x2.0 GHz Cortex-A55)
This phone
23%
Avg
42%
Best
93%
This phone
23%
Avg
50%
Best
100%
Based on calibrated CPU benchmark rankings (60%) and GFXBench GPU scores (40%). Apple chipsets included via editorial calibration since AnTuTu under-represents Apple's architecture.
- 6.5 inches
- 720 x 1600 pixels
- LCD
This phone
28%
Avg
62%
Best
96%
This phone
28%
Avg
61%
Best
98%
Based on panel type (LTPO is the modern flagship gold standard), resolution, refresh rate, peak brightness, screen size, and HDR10+ / Dolby Vision support. Marketing peak-brightness claims are capped at 3500 nits to prevent inflation.
- Single camera setup
- 48 MP main camera
- 1080p video recording
This phone
27%
Avg
39%
Best
70%
This phone
27%
Avg
41%
Best
95%
Based on main-sensor size (1-inch / 1/1.3" beats 1/2.0"), telephoto reach (periscope > 5x > 3x optical), image processing tier (Apple Pro, Pixel Pro, Galaxy Ultra, Honor Magic Pro, Xiaomi Ultra), pro video features (ProRes, Apple Log, Dolby Vision), camera-partnership branding (Leica, Hasselblad, Zeiss) and OIS. Older flagships are de-rated since image processing pipelines have advanced significantly each generation. Megapixel count is deliberately downweighted — it correlates poorly with real-world camera quality. Where DXOMARK has lab-tested the phone, its measured score replaces this estimate.
- 13 MP front camera
- 1080p selfie video
This phone
55%
Avg
59%
Best
90%
This phone
55%
Avg
60%
Best
93%
Based on the image-processing tier (Apple Pro, Pixel Pro, Galaxy Ultra and Honor Magic lead on computational processing), sensor resolution in tiers rather than raw megapixels, autofocus, aperture and max selfie-video resolution. Calibrated against DXOMARK's selfie protocol.
- 5,000 mAh
This phone
49%
Avg
51%
Best
86%
This phone
49%
Avg
53%
Best
100%
Based on battery capacity (mAh) adjusted for platform efficiency calibrated against NotebookCheck, Tom's Guide, GSMArena and CNET reviewer tests. Apple A-series gets +45% (iOS process freezing + LTPO 1Hz + tuned panels make iPhone Pro Max outlast many 6500+ mAh Android phones in measured tests). Top Snapdragon / Dimensity flagships get +15%, budget chipsets are penalised −15% to −25% to reflect less efficient displays and looser background limits. Charging speed is excluded — see the separate Fast charging tag for that.
General
Camera
Primary Camera Video
1080p@30fps
Primary Selfie Camera
13 MP, f/2.2, (wide), 1/3.1", 1.12µm
Selfie Video Resolution
1080p@30fps
Display
Type
PLS LCD
Display Size
6.5
Display Resolution
720 x 1600 pixels, 20:9 ratio (~270 ppi density)
CPU & Memory
Connectivity & Data
4G
1, 2, 3, 5, 7, 8, 20, 28, 38, 40, 41
Wi-Fi
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Bluetooth
5.0, A2DP, LE
USB
USB Type-C 2.0
NFC
Yes (market/region dependent)
GPS
GPS, GLONASS, GALILEO, BDS
Battery
Battery
5000
Other
Sensors
Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass