Xiaomi 15 Ultra vs Xiaomi 14 Ultra
The Xiaomi 15 Ultra scores 8.9 in our rating, and the Xiaomi 14 Ultra scores 8.5. The Xiaomi 15 Ultra leads in performance, battery and software support. The Xiaomi 15 Ultra is the newer phone, announced Feb 27, 2025.
Key differences
Why choose the Xiaomi 15 Ultra
- Bigger battery 5,410 mAh vs 5,000 mAh
- Brighter screen 3,200 nits vs 3,000 nits
- Newer model Feb 27, 2025 vs Feb 22, 2024
- Faster storage type UFS 4.1 vs UFS 4.0
- Longer security updates 6 years vs 5 years
Why choose the Xiaomi 14 Ultra
- Longer optical zoom 5× vs 4.3×
- Lighter 219.8 g vs 226 g
- Thinner 9.2 mm vs 9.35 mm
- Charger in the box
PhoneRanked scores
Calculated from specs, relative to phones from the same year and price range. How we rate phones
Value for money marked “est.” is an estimate: that phone has no official US launch price, so it is not highlighted against the others.
Spec
Xiaomi 15 UltraXiaomi 14 Ultra
Overall
8.9
8.5
Display
8.7
8.6
Performance
8.6
7.5
Camera
8.9
9.0
Battery
7.4
7.1
Design
8.1
8.2
Software support
7.4
6.9
Value for money
6.0 est.
6.0 est.
Display
Spec
Xiaomi 15 UltraXiaomi 14 Ultra
Size
6.73 inches
6.73 inches
Type
OLED, WQHD+ AMOLED (All Around Liquid Display)
OLED, WQHD+ AMOLED (Xiaomi C8)
Resolution
1440 × 3200 px
1440 × 3200 px
Pixel density
522 ppi
522 ppi
Refresh rate
120 Hz
120 Hz
Adaptive refresh
✓ Yes
✓ Yes
Peak brightness
3,200 nits
3,000 nits
HDR
HDR10+, Dolby Vision
HDR10+, Dolby Vision
Protection
Xiaomi Shield Glass 2.0
Xiaomi Shield Glass
Performance
Spec
Xiaomi 15 UltraXiaomi 14 Ultra
Process
3 nm
4 nm
Max CPU clock
4.32 GHz
3.3 GHz
GPU
Adreno 830
Adreno 750
RAM
12 GB / 16 GB
12 GB / 16 GB
Storage
256 GB / 512 GB / 1 TB
256 GB / 512 GB / 1 TB
Storage type
UFS 4.1
UFS 4.0
microSD slot
✕ No
✕ No
Cameras
Spec
Xiaomi 15 UltraXiaomi 14 Ultra
Main camera
50 MP, f/1.63, 1"
50 MP, f/1.63, 1"
Optical stabilization
✓ Yes
✓ Yes
Ultrawide
50 MP
50 MP
Telephoto
200 MP, 4.3× optical, periscope
50 MP, 5× optical, periscope
Optical zoom
4.3×
5×
Rear cameras
4
4
Rear video
8K@30
8K@30
Front camera
32 MP
32 MP
Front video
4K@60
4K@60
Battery and charging
Spec
Xiaomi 15 UltraXiaomi 14 Ultra
Capacity
5,410 mAh
5,000 mAh
Wired charging
90 W
90 W
Wireless charging
80 W
80 W
Reverse wireless
—
✓ Yes
Charger in box
✕ No
✓ Yes
Design and build
Spec
Xiaomi 15 UltraXiaomi 14 Ultra
Dimensions
161.3 × 75.3 × 9.35 mm
161.4 × 75.3 × 9.2 mm
Thickness
9.35 mm
9.2 mm
Weight
226 g
219.8 g
Form factor
Bar
Bar
Frame
Aluminum
Aluminum
Back
Fiberglass
Vegan leather
Water resistance
IP68
IP68
Fingerprint
Under-display ultrasonic
Under-display optical
3D face unlock
✕ No
✕ No
SIM
Dual Nano-SIM + eSIM
Dual Nano-SIM
Colors
Silver Chrome, Black, White, Pine Green (China)
Black, White
Connectivity and features
Spec
Xiaomi 15 UltraXiaomi 14 Ultra
5G
✓ Yes
✓ Yes
Wi-Fi
Wi-Fi 7
Wi-Fi 7
Bluetooth
6.0
5.4
USB
USB-C 3.x
USB-C 3.x
NFC
✓ Yes
✓ Yes
3.5 mm jack
✕ No
✕ No
Stereo speakers
✓ Yes
✓ Yes
Satellite
✕ No
✕ No
IR blaster
✓ Yes
✓ Yes
Software
Spec
Xiaomi 15 UltraXiaomi 14 Ultra
OS at launch
Android 15
Android 14
Interface
Xiaomi HyperOS 2
Xiaomi HyperOS
OS updates
4 years
4 years
Security updates
6 years
5 years
Launch and price
Spec
Xiaomi 15 UltraXiaomi 14 Ultra
Announced
Feb 27, 2025
Feb 22, 2024
Released
—
Feb 27, 2024
Status
Released
Released
Green marks the stronger value in a row. Specs come from official manufacturer data, cross-checked with established tech media; each phone page lists its sources. Report an error
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