The Samsung Galaxy S21 is in our catalog but no UK retailer currently stocks it.
Color
All
Grey
Pink
Purple
White
Storage
All
128GB
256GB
Buyers who want a compact, properly built Android phone with a 120Hz screen and strong cameras, and who are happy to treat it as a shorter-term or secondary device now that its update window has closed.
£5 off any Samsung phone at Mozillion
Take £5 off any Samsung phone at Mozillion, code valid on pay monthly phone contracts and SIM free phones.
Terms: Valid on SIM free phones and pay monthly phone contracts.
Ends 31 Aug 2026
Raylo
£0 upfront
Pay Monthly (Lease)
£7.99 / month
£0.00 upfront
Avg monthly cost: £7.99
Total cost: £287.64
Sold by Raylo
Cashback:
£0.00
First Year Cost:
£95.88
Monthly Average Cost:
£287.64 ÷ 36 = £7.99
Monthly Cost:
£7.99 x 36 = £287.64
Total Cost:
£287.64
Pay Monthly (Lease)
£8.59 / month
£0.00 upfront
Avg monthly cost: £8.59
Total cost: £309.24
Sold by Raylo
Cashback:
£0.00
First Year Cost:
£103.08
Monthly Average Cost:
£309.24 ÷ 36 = £8.59
Monthly Cost:
£8.59 x 36 = £309.24
Total Cost:
£309.24
Pay Monthly (Lease)
£8.59 / month
£0.00 upfront
Avg monthly cost: £8.59
Total cost: £309.24
Sold by Raylo
Cashback:
£0.00
First Year Cost:
£103.08
Monthly Average Cost:
£309.24 ÷ 36 = £8.59
Monthly Cost:
£8.59 x 36 = £309.24
Total Cost:
£309.24
Pay Monthly (Lease)
£8.59 / month
£0.00 upfront
Avg monthly cost: £8.59
Total cost: £309.24
Sold by Raylo
Cashback:
£0.00
First Year Cost:
£103.08
Monthly Average Cost:
£309.24 ÷ 36 = £8.59
Monthly Cost:
£8.59 x 36 = £309.24
Total Cost:
£309.24
Pay Monthly (Lease)
£8.59 / month
£0.00 upfront
Avg monthly cost: £8.59
Total cost: £309.24
Sold by Raylo
Cashback:
£0.00
First Year Cost:
£103.08
Monthly Average Cost:
£309.24 ÷ 36 = £8.59
Monthly Cost:
£8.59 x 36 = £309.24
Total Cost:
£309.24
Pay Monthly (Lease)
£8.59 / month
£0.00 upfront
Avg monthly cost: £8.59
Total cost: £309.24
Sold by Raylo
Cashback:
£0.00
First Year Cost:
£103.08
Monthly Average Cost:
£309.24 ÷ 36 = £8.59
Monthly Cost:
£8.59 x 36 = £309.24
Total Cost:
£309.24
Pay Monthly (Lease)
£8.99 / month
£0.00 upfront
Avg monthly cost: £8.99
Total cost: £323.64
Sold by Raylo
Cashback:
£0.00
First Year Cost:
£107.88
Monthly Average Cost:
£323.64 ÷ 36 = £8.99
Monthly Cost:
£8.99 x 36 = £323.64
Total Cost:
£323.64
Pay Monthly (Lease)
£9.49 / month
£0.00 upfront
Avg monthly cost: £9.49
Total cost: £227.76
Sold by Raylo
Cashback:
£0.00
First Year Cost:
£113.88
Monthly Average Cost:
£227.76 ÷ 24 = £9.49
Monthly Cost:
£9.49 x 24 = £227.76
Total Cost:
£227.76
Pay Monthly (Lease)
£9.95 / month
£0.00 upfront
Avg monthly cost: £9.95
Total cost: £238.80
Sold by Raylo
Cashback:
£0.00
First Year Cost:
£119.40
Monthly Average Cost:
£238.80 ÷ 24 = £9.95
Monthly Cost:
£9.95 x 24 = £238.80
Total Cost:
£238.80
Pay Monthly (Lease)
£9.95 / month
£0.00 upfront
Avg monthly cost: £9.95
Total cost: £238.80
Sold by Raylo
Cashback:
£0.00
First Year Cost:
£119.40
Monthly Average Cost:
£238.80 ÷ 24 = £9.95
Monthly Cost:
£9.95 x 24 = £238.80
Total Cost:
£238.80
31 refurbished deals available - SIM-free from £152.28.
The Galaxy S21 was Samsung's compact flagship for 2021, and it has aged well in the ways that matter for a refurbished or second-hand buy. At 6.2 inches and 169g it is genuinely easy to use one-handed, which is increasingly rare, and the 120Hz Dynamic AMOLED 2X screen still feels as fluid as anything sold today. The camera set-up covers ultrawide, main and a 64MP sensor used for 3x hybrid zoom, and it produces the bright, ready-to-share images Samsung is known for, with 8K video recording thrown in. The trade-offs were controversial at launch and remain so: Samsung dropped the microSD slot entirely, cut the resolution to Full HD+ from the S20's sharper panel, and used a plastic back rather than glass. The 4,000mAh battery is the real weak point, and a heavy day will need a top-up before the evening. Samsung promised four Android upgrades and five years of security updates from its January 2021 launch, so that window has now run its course, which is the main argument against relying on one as a long-term main phone.
Tracking the best prices since 27 Apr 2026.
| Feature | Samsung Galaxy S21 | Samsung Galaxy S21+ 5G |
|---|---|---|
| Display | 6.2-inch AMOLED, 2400 x 1080, 120Hz | 6.7-inch AMOLED, 2400 x 1080, 120Hz |
| Battery | 4,000 mAh | 4,800 mAh |
| Weight | 169 g | 200 g |
| Dimensions | 151.7 x 71.2 x 7.9 mm | 161.5 x 75.6 x 7.8 mm |
| Camera | 12MP main, 12MP ultrawide, 64MP 3x zoom, 10MP front | 12MP main, 12MP ultrawide, 64MP 3x zoom, 10MP front |
| Storage options | 128GB or 256GB, no microSD | 128GB or 256GB, no microSD |
| SIM-free price | Not available | From £129.00 |
£700-£999 Phones · 82 phones
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.
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.
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.
Based on selfie megapixels and max selfie-video resolution.
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.
64
8K@24fs, 4K@30/60fs, 1080@30/60/120/240fs, HDR10+, stereo sound rec., gyro-EIS
12 , f/1.8, 26mm (wide), 1/1.76", 1.8µm, dual pixel PDAF, OIS 64 , f/2.0, 29mm (telephoto), 1/1.72", 0.8µm, PDAF, OIS, 1.1x optical zoom, 3x hybrid zoom 12 , f/2.2, 13mm, 120˚ (ultrawide), 1/2.55" 1.4µm, Super Steady video
HDR
10 , f/2.2, 26mm (wide), 1/3.24", 1.22µm, dual pixel PDAF
4320
4K@30/60fs, 1080@30fs
Dynamic AMOLED 2X, 120Hz, HDR10+, 1300 nits (peak)
6.2
1080 x 2400 pixels, 20:9 ratio (~421 ppi density)
Corning Gorilla Glass Victus
Yes, with stereo speakers
No
GSM 850 / 900 / 1800 / 1900
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 38, 39, 40, 41, 66
HSPA, LTE
GSM / CDMA / HSPA / EVDO / LTE
Wi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct
5.0, A2DP, LE
USB Type-C 3.2, OTG
Yes
GPS, GLONASS, BDS, GALILEO
4000
25W wired, PD3.0 15W wireless (Qi) 4.5W reverse wireless
Fingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass, barometer
