Xiaomi Redmi 15 Refurbished Deals - May 2026
Compare 1 refurbished SIM-free offer for the Xiaomi Redmi 15 from UK retailers.
Buy the Xiaomi Redmi 15 refurbished SIM-free from £199.00 at Back Market.
Xiaomi Redmi 15 Refurbished deals
Find the best Refurbished deal on the Xiaomi Redmi 15 from 1 options.
Spec scores
£200-£399 Phones · 157 phones
Performance
0.6
/5
Display
2.8
/5
Rear Camera
1.5
/5
Front Camera
1.8
/5
Battery
4
/5
Deals
SIM Free from £199.00
Color
All
Black
Storage
All
256GB
Budget buyers who want the longest possible battery life and a large display for media consumption without spending more than £200.
Xiaomi Redmi 15 SIM Free (1 deals)
Filters
Grade B
5G
Redmi 15 256GB (Black)
Cost breakdown
Cashback:
£0.00
Upfront Cost:
£199.00
About the Xiaomi Redmi 15
The Redmi 15 is Xiaomi's ultra-affordable workhorse for 2025, built around a massive 7,000mAh battery that redefines what budget phones can offer in terms of endurance. Starting at just £159 in the UK, it delivers genuinely impressive stamina that can stretch to two full days of moderate use, and can even double as a power bank thanks to 18W reverse charging. The 6.9-inch IPS LCD display is the largest in its class, running at a smooth 144Hz refresh rate at Full HD+ resolution, making it excellent for videos, social media, and casual gaming. The Qualcomm Snapdragon 685 chipset handles everyday tasks without issue, and the 50MP dual camera takes respectable photos in good light. Xiaomi has added IP64 splash resistance, Gorilla Glass 3 protection, and a practical matte plastic design that feels sturdy in hand. With storage options up to 256GB and expandable memory, the Redmi 15 is a no-nonsense phone for buyers who value battery life and screen size above all else, proving you do not need to spend much to get a genuinely useful smartphone experience.
Expert Rating
3.7
(1 review)
Price History
Tracking the best prices since 4 May 2026.
Redmi 15 vs Redmi 14C — Key Differences
| Feature | Xiaomi Redmi 15 | Redmi 14C |
|---|---|---|
| Display | 6.9-inch IPS LCD, 144Hz, FHD+, Gorilla Glass 3 | 6.88-inch IPS LCD, 120Hz, HD+, Gorilla Glass 3 |
| Chipset | Qualcomm Snapdragon 685 | MediaTek Helio G81 Ultra |
| Camera system | 50MP main + secondary sensor, 8MP front | 50MP main, 13MP front |
| Battery | 7,000mAh with 33W charging + 18W reverse | 5,160mAh with 18W charging |
| Build / Design | Matte plastic, IP64 splash resistance | Glass/plastic, no official IP rating |
| Storage options | 128GB / 256GB with microSD | 128GB / 256GB with microSD |
| SIM-free price | From £199.00 | From £89.98 |
Frequently Asked Questions
Is the Redmi 15 worth buying?
The Redmi 15 is an outstanding choice if battery life is your top priority. Its 7,000mAh battery easily outlasts almost every phone in any price bracket, and the large 144Hz display is a bonus at this price. At £159, it is hard to find better value for a phone that simply works reliably day after day.
How good is the Redmi 15 camera?
The 50MP main camera produces decent photos in good lighting with reasonable detail and colour accuracy. It handles social media shots and casual photography well enough, though low-light performance is limited compared to pricier phones. The 8MP front camera is adequate for video calls and selfies.
Does the Redmi 15 have 5G?
The base Redmi 15 uses the Snapdragon 685 chipset and is 4G only. If you need 5G connectivity, Xiaomi offers a Redmi 15 5G variant powered by the Snapdragon 6s Gen 3, though it may be priced slightly higher. Check which variant is available from your chosen retailer.
Can the Redmi 15 be used as a power bank?
Yes, the Redmi 15 supports 18W reverse wired charging, allowing you to charge other devices like earbuds, smartwatches, or even another phone using the Redmi 15's enormous 7,000mAh battery. This is a genuinely practical feature for travel or emergencies.
How long does the Redmi 15 battery actually last?
With a 7,000mAh battery, the Redmi 15 can comfortably last two days under moderate use. Even heavy users will get through a full day without concern. The 33W charging speed means a full recharge takes a little over an hour, which is reasonable given the enormous capacity.
How does the Redmi 15 compare to the Redmi 14C?
The Redmi 15 is a major step up from the Redmi 14C in almost every way. It has a much larger 7,000mAh battery versus 5,160mAh, a faster 144Hz display versus 120Hz, 33W charging versus 18W, IP64 splash resistance, and 18W reverse charging. The Redmi 14C costs less but feels like a generation behind. Compare Redmi 14C deals.
Xiaomi Redmi 15 Specifications
Spec Scores
£200-£399 Phones · 157 phones
- Snapdragon 6s Gen 3
- Octa-core (2x2.3 GHz Cortex-A78 & 6x2.0 GHz Cortex-A55)
This phone
11%
Avg
34%
Best
99%
This phone
11%
Avg
45%
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.
- 6.9 inches
- 1080 x 2340 pixels
- IPS, 144Hz, 850 nits peak
This phone
56%
Avg
62%
Best
97%
This phone
56%
Avg
60%
Best
100%
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
- 50 MP main camera
- 1080p video recording
This phone
29%
Avg
33%
Best
69%
This phone
29%
Avg
39%
Best
90%
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.
- 8 MP front camera
- 1080p selfie video
This phone
35%
Avg
60%
Best
92%
This phone
35%
Avg
55%
Best
92%
Based on selfie megapixels and max selfie-video resolution.
- 7,000 mAh
- 33W wired, PD 2.0, PPS, QC3
This phone
79%
Avg
51%
Best
100%
This phone
79%
Avg
52%
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
Dimensions
169.5 x 80.5 x 8.4
Weight
217 g
SIM
Nano-SIM + Nano-SIM
Operating System
Android 15, HyperOS 2.2
Colours
Radio
No
Body
Midnight Black, Titan Gray, Ripple Green
Camera
Primary Camera Megapixels
50
Primary Camera Video
1080@30fs
Second Camera
50 , f/1.8, (wide), 1/2.88" 0.61μm, PDAF Auxiliary lens
Selfie Camera Features
HDR
Primary Selfie Camera
8 , f/2.0, (wide)
Video Resolution
1080
Selfie Video Resolution
1080@30fs
Display
Type
IPS LCD, 144Hz, 600 nits (typ), 700 nits (HBM), 850 nits (peak)
Display Size
6.9
Display Resolution
1080 x 2340 pixels, 19.5:9 ratio (~374 ppi density)
Display Protection
Corning Gorilla Glass 3, Mohs level 6
CPU & Memory
Chipset
Snapdragon 6s Gen 3
GPU
Adreno 619
CPU
Octa-core (2x2.3 GHz Cortex-A78 & 6x2.0 GHz Cortex-A55)
Memory Card Slot
microSDXC (uses shared SIM slot)
Internal Storage
Sound
Loudspeaker
Yes
3.5mm Jack
No
Connectivity & Data
2G
GSM 850 / 900 / 1800 / 1900
3G
HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100
4G
1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 26, 28, 32, 38, 40, 41, 42, 48, 66, 71
5G
1, 2, 3, 5, 7, 8, 12, 20, 26, 28, 38, 40, 41, 48, 66, 77, 78, 71 SA/NSA
Network Speed
HSPA, LTE, 5G
Network Technology
GSM / HSPA / LTE / 5G
Wi-Fi
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Bluetooth
5.1, A2DP, LE, aptX
USB
USB Type-C 2.0, OTG
NFC
Yes (market/region dependent)
GPS
GPS, GLONASS, GALILEO, BDS
Battery
Battery
7000
Charging
33W wired, PD 2.0, PPS, QC3 18W reverse wired
Other
Sensors
Fingerprint (side-mounted), accelerometer, compass