Xiaomi Redmi 15 deals
The Xiaomi Redmi 15 is in our catalog but no UK retailer currently stocks it.
Release date: 1 August 2025
Budget buyers who want the longest possible battery life and a large display for media consumption on a tight budget.
Xiaomi Redmi 15
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The Xiaomi Redmi 15 is in our catalog but no UK retailer currently stocks it. Check back later, or browse Xiaomi alternatives below.
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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. Positioned at the ultra-affordable end of the UK market, 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
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 | Not available | From £149.00 |
Frequently asked questions
Is the Redmi 15 worth buying?
How good is the Redmi 15 camera?
Does the Redmi 15 have 5G?
Can the Redmi 15 be used as a power bank?
How long does the Redmi 15 battery actually last?
How does the Redmi 15 compare to the Redmi 14C?
Xiaomi Redmi 15 Specifications
Spec Scores
£200-£399 Phones · 204 phones
- Snapdragon 6s Gen 3
- Octa-core (2x2.3 GHz Cortex-A78 & 6x2.0 GHz Cortex-A55)
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
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
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.
- 8 MP front camera
- 1080p selfie video
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.
- 7,000 mAh
- 33W wired, PD 2.0, PPS, QC3
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
Midnight Black, Titan Gray, Ripple Green
Radio
No
Body
Midnight Black, Titan Gray, Ripple Green
Camera
Primary Camera Megapixels
50
Primary Camera Video
1080p@30fps
Second Camera
50 MP, f/1.8, (wide), 1/2.88" 0.61μm, PDAF Auxiliary lens
Selfie Camera Features
HDR
Primary Selfie Camera
8 MP, f/2.0, (wide)
Video Resolution
1080
Selfie Video Resolution
1080p@30fps
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
128GB 4GB RAM, 128GB 6GB RAM, 128GB 8GB RAM, 256GB 4GB RAM, 256GB 8GB RAM
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