Xiaomi
£549.00
one-off
Xiaomi 15 SIM Free deals
Find the best SIM Free deal on the Xiaomi 15 from 1 options.
Expert reviews
3.9
(6)
Spec scores
£400-£699 Phones · 71 phones
Performance
4.9
/5
Display
4.6
/5
Rear Camera
3.4
/5
Front Camera
4.6
/5
Battery
4
/5
Deals
SIM Free from £549.00
Color
All
White
Storage
All
512GB
Buyers who refuse to carry a large phone but still want flagship speed, a Leica-tuned triple camera and all-day battery life.
Best sim free deal for this Xiaomi 15 SIM Free
Xiaomi
Xiaomi 15 SIM Free (1 deals)
Filters
5G
15 512GB (White)
Cost breakdown
Cashback:
£0.00
Upfront Cost:
£549.00
Xiaomi 15 Deals - August 2026
Compare 1 SIM-free offer for the Xiaomi 15 from UK retailers.
Buy the Xiaomi 15 SIM-free from £549.00 at Xiaomi.
About the Xiaomi 15
The Xiaomi 15 is the rare modern flagship that stays genuinely small. At 6.36 inches and 191g it is one of the few phones with top-end silicon that you can still use one-handed, and Xiaomi has not thinned out the specification to achieve it. The Snapdragon 8 Elite inside is the same chip powering far larger rivals, and the 5,240mAh battery is bigger than the one in the Xiaomi 14 despite the identical footprint, which is the single most useful change this generation. Charging is quick enough that battery anxiety rarely arises, with 90W wired and 50W wireless both supported. The Leica-tuned triple 50MP camera array is the other reason to look here: main, ultrawide and telephoto all use 50MP sensors, so image quality holds up when you switch lenses rather than collapsing on the secondary cameras as it does on most compact phones. Trade-offs are the ones you would expect, namely no microSD, no headphone jack and a screen that keen video watchers may find cramped.
Expert Rating
3.9
(6 reviews)
Price History
Tracking the best prices since 11 May 2026.
SIM-Free (New)
Lowest price in 30 days (£549)
Xiaomi 15 vs Xiaomi 15 Ultra - Key Differences
| Feature | Xiaomi 15 | Xiaomi 15 Ultra |
|---|---|---|
| Display | 6.36-inch LTPO OLED, 1200 x 2670, 120Hz | 6.73-inch LTPO AMOLED, 1440 x 3200, 120Hz |
| Rear cameras | 50MP main, 50MP ultrawide, 50MP telephoto | 50MP main, 50MP ultrawide, 50MP 3x floating telephoto, 200MP periscope |
| Battery | 5,240 mAh, 90W wired, 50W wireless | 5,410 mAh, 90W wired, 80W wireless |
| Weight | 191 g | 229 g |
| Dimensions | 152.3 x 71.2 x 8.08 mm | 161.3 x 75.3 x 9.48 mm |
| Storage options | 256GB, 512GB, 1TB | 256GB, 512GB, 1TB |
| SIM-free price | From £549.00 | From £1,028.38 |
Frequently asked questions
Is the Xiaomi 15 worth buying?
The Xiaomi 15 is worth buying if you want flagship performance and a genuinely capable camera in a phone that is still comfortable in one hand. It pairs the Snapdragon 8 Elite with a 5,240mAh battery and a full Leica triple 50MP camera set, which is unusual at this size. If you watch a lot of video or want maximum zoom reach, the larger Xiaomi 15 Ultra makes more sense.
Is the Xiaomi 15 camera good?
Yes. All three rear cameras use 50MP sensors, covering main, ultrawide and telephoto, with Leica colour tuning and optical stabilisation on the main lens. Because none of the secondary lenses drops to a low-resolution sensor, detail stays consistent as you switch between them, and the phone can record video up to 8K.
How long does the Xiaomi 15 battery last?
The 5,240mAh cell is large for a 6.36-inch phone and comfortably covers a full day of normal use. Charging is fast at 90W wired, and 50W wireless charging is supported too, so short top-ups are effective even if you run it low.
Is the Xiaomi 15 waterproof?
The Xiaomi 15 carries an IP68 rating, meaning it is fully dust-tight and protected against immersion in fresh water. That covers rain, spills and accidental drops into a sink, though as with any phone the seals are not guaranteed against salt water or high-pressure jets.
Does the Xiaomi 15 have a headphone jack or microSD slot?
No to both. The Xiaomi 15 has no 3.5mm headphone jack and no microSD expansion, so you will need wireless or USB-C earphones and should choose your storage tier carefully at purchase. It is offered in 256GB, 512GB and 1TB configurations.
Should I get the Xiaomi 15 or the Xiaomi 15 Ultra?
Both run the Snapdragon 8 Elite, so day-to-day speed is the same. The Ultra adds a 200MP periscope telephoto and a sharper 6.73-inch QHD display with far higher peak brightness, plus a larger 5,410mAh battery and 80W wireless charging, but it weighs 229g against the Xiaomi 15's 191g and is noticeably thicker. Choose the standard 15 for a compact phone you can use one-handed, or the Ultra if long-range photography is the priority. Compare Xiaomi 15 Ultra deals.
Xiaomi 15 Specifications
Spec Scores
£400-£699 Phones · 71 phones
- Snapdragon 8 Elite
- Octa-core (2x4.32 GHz Oryon V2 Phoenix L + 6x3.53 GHz Oryon V2 Phoenix M)
This phone
98%
Avg
73%
Best
100%
This phone
98%
Avg
49%
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.
- 6.36 inches
- 1200 x 2670 pixels
- LTPO, 920Hz, 3200 nits peak
This phone
92%
Avg
76%
Best
97%
This phone
92%
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
- 50 MP main camera
- 8K video recording
This phone
68%
Avg
53%
Best
88%
This phone
68%
Avg
41%
Best
98%
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.
- 32 MP front camera
- 4K selfie video
This phone
92%
Avg
68%
Best
92%
This phone
92%
Avg
55%
Best
92%
Based on selfie megapixels and max selfie-video resolution.
- 5,240 mAh
- 90W wired, PD3.0, QC3+
This phone
79%
Avg
63%
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
152.3 x 71.2 x 8.1 / 8.4 / 8.5 mm
Weight
192 g
SIM
Nano-SIM + Nano-SIM
Operating System
Android 15, up to 4 major upgrades, HyperOS 2
Colours
Radio
No
Body
Black, White, Liquid Silver, Green, Lilac
Camera
Primary Camera Megapixels
50
Primary Camera Video
8K@24/30fs (HDR), 4K@24/30/60fs (HDR10+, 10-bit Dolby Vision HDR, 10-bit LOG), 1080@30/60/120/240/960fs, 720@1920fs, gyro-EIS
Third Camera
50 , f/1.6, 23mm (wide), 1/1.31", 1.2µm, dual pixel PDAF, OIS 50 , f/2.0, 60mm (telephoto), 1/2.76", 0.64µm, PDAF (10cm - ∞), OIS, 2.6x optical zoom 50 , f/2.2, 14mm, 115˚ (ultrawide), 1/2.76", 0.64µm
Selfie Camera Features
HDR, panorama
Primary Selfie Camera
32 , f/2.0, 21mm (wide), 1/3.14", 0.7µm
Video Resolution
4320
Selfie Video Resolution
4K@30/60fs, 1080@30/60fs, HDR10+, gyro-EIS
Display
Type
LTPO AMOLED, 68B colors, 1920Hz PWM, 120Hz, Dolby Vision, HDR10+, 3200 nits (peak)
Display Size
6.36
Display Resolution
1200 x 2670 pixels, 20:9 ratio (~460 ppi density)
Display Protection
Xiaomi Shield Glass, Mohs level 6
CPU & Memory
Chipset
Snapdragon 8 Elite
GPU
Adreno 830
CPU
Octa-core (2x4.32 GHz Oryon V2 Phoenix L + 6x3.53 GHz Oryon V2 Phoenix M)
Memory Card Slot
No
Internal Storage
Sound
Loudspeaker
Yes, with stereo speakers
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, 25, 26, 28, 32, 38, 39, 40, 41, 42, 48, 66 - International
5G
1, 2, 3, 5, 7, 8, 12, 20, 25, 26, 28, 38, 40, 41, 48, 66, 75, 77, 78 SA/NSA - International
Network Speed
HSPA, LTE, 5G
Network Technology
GSM / HSPA / LTE / 5G
Wi-Fi
Wi-Fi 802.11 a/b/g/n/ac/6e/7, dual-band or tri-band, Wi-Fi Direct
Bluetooth
5.4/6.0, A2DP, LE, aptX HD, aptX Adaptive, LHDC 5
USB
USB Type-C 3.2, Display Port, OTG
NFC
Yes
GPS
GPS (L1+L5), GLONASS (G1), BDS (B1I+B1c+B2a), GALILEO (E1+E5a), QZSS (L1+L5)
Battery
Battery
5240
Charging
90W wired, PD3.0, QC3+ 50W wireless 10W reverse wireless
Other
Sensors
Fingerprint (under display, ultrasonic), accelerometer, proximity, gyro, compass, barometer