Xiaomi
£699.00
one-off
Xiaomi 15 512GB deals
Find the best 512GB deal on the Xiaomi 15 from 3 options.
Expert reviews
3.9
(6)
Spec scores
£400-£699 Phones · 62 phones
Performance
4.9
/5
Display
4.9
/5
Rear Camera
4.1
/5
Front Camera
4.6
/5
Battery
3.8
/5
Deals
SIM Free from £699.00
Color
All
Black
Green
White
Storage
All
512GB
256GB
Best sim free deal for this Xiaomi 15 512GB
Xiaomi
Xiaomi 15 SIM Free (3 deals)
Filters
5G
15 512GB (White)
Cost breakdown
Cashback:
£0.00
Upfront Cost:
£699.00
5G
15 512GB (Black)
Cost breakdown
Cashback:
£0.00
Upfront Cost:
£699.00
5G
15 512GB (Green)
Cost breakdown
Cashback:
£0.00
Upfront Cost:
£699.00
Xiaomi 15 Deals - May 2026
Compare 3 SIM-free offers for the Xiaomi 15 from UK retailers.
Buy the Xiaomi 15 SIM-free from £699.00 at Xiaomi.
Expert Rating
3.9
(6 reviews)
Price History
Tracking the best prices since 11 May 2026.
Xiaomi 15 Specifications
Spec Scores
£400-£699 Phones · 62 phones
- Snapdragon 8 Elite
- Octa-core (2x4.32 GHz Oryon V2 Phoenix L + 6x3.53 GHz Oryon V2 Phoenix M)
This phone
98%
Avg
68%
Best
100%
This phone
98%
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.
- 6.36 inches
- 1200 x 2670 pixels
- LTPO, 920Hz, 3200 nits peak
This phone
97%
Avg
81%
Best
100%
This phone
97%
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
- 8K video recording
This phone
81%
Avg
55%
Best
88%
This phone
81%
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.
- 32 MP front camera
- 4K selfie video
This phone
92%
Avg
71%
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
75%
Avg
63%
Best
100%
This phone
75%
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
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
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