Home Phone comparison Xiaomi 14 Ultra and Oppo Reno 15 - Which is better?

Xiaomi 14 Ultra vs Oppo Reno 15

87 out 100
Xiaomi 14 Ultra
VS
83 out 100
Oppo Reno 15
Xiaomi 14 Ultra
Oppo Reno 15

Compared 2 smartphones : Xiaomi 14 Ultra Manufactured in February, 2024, with display 6.73 with chipsetQualcomm Snapdragon 8 Gen 3, vs Oppo Reno 15, Manufactured in November, 2025with chipsetMediaTek Dimensity 8450. Below are specs, tests, pros and cons for each device

  1. Differences
  2. Review
  3. Specs
  4. Benchmarks
  5. Battery Life
  6. Cameras
  7. Comments (0)

Key Differences

Device key advantages
Reasons to choose Xiaomi 14 Ultra
  • Larger display: 6.73in
  • Higher pixel density: 522ppi
  • Supports newer USB: 3.2 vs 2
  • Supports DisplayPort
  • Supports Dolby Atmos
Reasons to choose Oppo Reno 15
  • Lighter design: 187g vs 219.8g
  • Higher battery capacity: 6200mAh vs 5000mAh
  • Built-in eSIM

Versions

Available versions and configurations
Memory Options - 12/256 GB
- 16/512 GB
- 16/1024 GB		 - 12/256 GB
- 12/512 GB
- 16/256 GB
- 16/512 GB
- 16/1024 GB

Review

Key Specs Xiaomi 14 Ultra and Oppo Reno 15
Display
Color accuracy, sharpness & brightness
Camera
Main & front camera tests
Performance
App & system performance
Games
3D gaming performance
Battery
Battery life, charging speed & type
Connectivity
Connectivity features
NanoReview Score
Overall score by NanoReview
Adjust each parameter’s importance to find the best match for you.
Customize your score
Function
Importance (Weight)
Display:
Camera:
Performance:
Gaming:
Battery:
Connectivity:
Higher weight means greater impact on NanoReview score.

Tests & specs

Specs & test comparison
Smartphones:
Xiaomi 14 Ultra
vs
Oppo Reno 15

Display

Display quality comparison
Type AMOLED AMOLED
Size 6.73 in 6.32 in
Resolution 1440x3200 pixels 1216x2640 pixels
Aspect ratio 20:9 19.5:9
Pixel density 522 ppi 460 ppi
Refresh rate 120 Hz 120 Hz
Adaptive refresh rate Yes (1-120 Hz) Yes (60-120 Hz)
Max brightness 3000 nits 600 nits
HDR support Yes Dolby Vision Yes, HDR10+
Touch Sampling Rate 240 Hz n/a
Screen-to-body ratio 89.9 % 89.6 %
Features - DCI-P3
- Always-On Display
- DC dimming		 - DCI-P3
- Always-On Display
- DC dimming
Display test
Peak brightness (auto)
Xiaomi 14 Ultra
1269 nits
Oppo Reno 15
n/a
sRGB gamut98.9 %n/a
PWM (Flicker)120 Hzn/a
Response time1 msn/a
Contrast∞ Infiniten/a
Sources: NotebookCheck [Xiaomi 14 Ultra]

Design & Build

Design and ergonomics comparison
Height 161.4 mm (6.35 in) 151.21 mm (5.95 in)
Width 75.3 mm (2.96 in) 72.42 mm (2.85 in)
Thickness 9.2 mm (0.36 in) 7.99 mm (0.31 in)
Weight 219.8 g (7.75 oz) 187 g (6.6 oz)
Water resistance IP68 IP69
Cooling system Vapor chamber Vapor chamber
Back panel Glass Glass
Frame Metal Metal
Colors - White
- Black		 - White
- Gold
- Brown
Fingerprint sensor Yes In-Display Yes, In-Display
Screen-to-body ratio
Xiaomi 14 Ultra
89.9 %
Oppo Reno 15
89.6 %

Performance

Testing Xiaomi 14 Ultra and Oppo Reno 15 In benchmarks
Processor
Chipset Qualcomm Snapdragon 8 Gen 3 MediaTek Dimensity 8450
Max Frequency 3300 MHz 3250 MHz
CPU Cores 8 (1 + 3 + 2 + 2) 8 (1 + 3 + 4)
Architecture - 2/2.27 (Cortex-A520)
- 2/2.96 (Cortex-A720)
- 3/3.15 (Cortex-A720)
- 1/3.3 (Cortex-X4)		 - 4/2.1 (Cortex-A725)
- 3/3 (Cortex-A725)
- 1/3.25 (Cortex-A725)
Process TSMC TSMC
Transistor Size 4 nm 4 nm
Neural Processor Hexagon MediaTek NPU 880
Graphics Adreno 750 Mali-G720 MP7
GPU Cores 1536 896
GPU Frequency 903-1000 MHz 1300 MHz
FLOPS 2774 GFLOPS 2329.6 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Xiaomi 14 Ultra
2197
Oppo Reno 15
1686
Geekbench 6 (Multi-Core)
Xiaomi 14 Ultra
7058
Oppo Reno 15
5130
Geekbench 6 (Single-Core)21971686
Geekbench 6 (Multi-Core)70585130
Geekbench Compute (GPU)16435n/a
Sources: Geekbench v6 [Xiaomi 14 Ultra], [Oppo Reno 15]
AnTuTu 10
AnTuTu 10
Xiaomi 14 Ultra
2019519
Oppo Reno 15
1368197
CPU436541286007
GPU840663548893
Memory431435267249
UX328880266048
NanoReview Score20195191368197
3DMark Wild Life
3DMark Wild Life
Xiaomi 14 Ultra
15437
Oppo Reno 15
n/a
Max Surface Temp.47.7 °Cn/a
Stability86 %n/a
Graphics Test92 fpsn/a
Graphics Score15437n/a
Sources: 3DMark [Xiaomi 14 Ultra]
PCMark 3.0
PCMark 3.0
Xiaomi 14 Ultra
16417
Oppo Reno 15
n/a
Writing score19642n/a
Web score14876n/a
Video editing7929n/a
Data manipulation15903n/a
NanoReview Score16417n/a

Memory

RAM
RAM Size - 12 GB
- 16 GB		 12 GB
Memory Type LPDDR5X LPDDR5X
Memory Frequency 4200 MHz 4266 MHz
Channels 4 4
Storage
Storage Capacity- 256 GB
- 512 GB
- 1024 GB		256 GB
Storage TypeUFS 4.0UFS 3.1
Memory CardNoNo

Software

OS Android 14 (Upgradeable to Android 15) Android 16
OS Size 31 GB n/a
UI Skin HyperOS 2.0 ColorOS 16

Battery

Volume 5000 mAh 6200 mAh
Max Charging Power 90 W 80 W
Battery Type Li-Po Silicon Carbon (Si/C)
Removable No No
Wireless Charging Yes (80 W) No
Reverse Charging Yes (Wireless) Yes
Fast Charging Yes (52% in 15 min) Yes (73% in 30 min)
Full Charge Time 0:34 h 0:52 h
Battery Life Test
Battery Life
Xiaomi 14 Ultra
22:08
Oppo Reno 15
n/a
Web Browsing09:23 hn/a
Video Playback12:26 hn/a
Games04:35 hn/a
Standby Mode109 hn/a

Main camera

Matrix 50 MP 200 MP
Photo resolution 8192x6144 pixels n/a
Zoom Optical, 5x Optical, 3.5x
Flash Dual LED LED
Stabilization Optical Optical
8K Recording Yes (Up to 30 fps) No
4K Recording Yes (Up to 120 fps) Yes (Up to 60 fps)
1080p Recording Yes (Up to 60 fps) Yes (Up to 60 fps)
Slow Motion 1920 fps (1080p) 240 fps (1080p)
Wide-angle lens 122 ° 116 °
Lenses count Standard: 50 MP
Telephoto: 50 MP
Telephoto: 50 MP
Ultra-wide: 50 MP
Depth		 Standard: 200 MP
Telephoto: 50 MP
Ultra-wide: 50 MP
Features - Bokeh effect
- Pro mode
- RAW support		 - Bokeh effect
- Pro mode
Main lens
Matrix50 MP200 MP
Aperturef/1.6 - 4.0f/1.8
Focal length23 mm24 mm
SensorSony LYT-900n/a
Sensor size1/1.01/1.56 (0.64)
Pixel size1.6 μm0.5 μm
AutofocusLaser autofocusPhase autofocus
StabilizationOpticalOptical
Telephoto
Matrix50 MP50 MP
Aperturef/1.8f/2.8
Focal length120 mm85 mm
SensorSony IMX858n/a
Sensor size1/2.51n/a
Pixel size0.7 μmn/a
StabilizationOpticalOptical
Ultra-wide lens
Matrix50 MP50 MP
Aperturef/1.8f/2.0
Focal length12 mm16 mm
SensorSony IMX858n/a
Sensor size1/2.51n/a
Pixel size0.7 μmn/a
StabilizationDigitalDigital
Main camera DxOMark results
Photo quality
Xiaomi 14 Ultra
144
Oppo Reno 15
n/a
Video quality
Xiaomi 14 Ultra
150
Oppo Reno 15
n/a
Overall camera score
Xiaomi 14 Ultra
149
Oppo Reno 15
n/a
Bokeh75n/a
Preview83n/a
Zoom160n/a
Sources: DxOMark [Xiaomi 14 Ultra]

Front camera

Matrix 32 MP 50 MP
Photo resolution 6528x4896 pixels 8192x6144 pixels
Aperture f/2.0 f/2.0
Focal length 22 mm 18 mm
Sensor Omnivision OV32B n/a
Sensor size 1/3.14 n/a
Pixel size 0.7 μm n/a
Autofocus No No
Stabilization Digital Digital
Video resolution 2160p (4K) at 60 fps 2160p (4K) at 60 fps
TOF 3D sensor No No

Connectivity

Wi-Fi version Wi-Fi 7 (802.11 a/b/g/n/ac/ax/be) Wi-Fi 6E (802.11 a/b/g/n/ac/ax)
Wi-Fi features - Dual Band
- Wi-Fi MiMO
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display		 - Dual Band
- Wi-Fi MiMO
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display
Bluetooth version 5.4 5.4
Bluetooth features LE LE
USB type USB Type-C USB Type-C
USB version 3.2 2
USB features - Charging
- USB Storage Mode
- OTG		 - Charging
- USB Storage Mode
- OTG
DisplayPort Yes DP 1.2 No
GPS - GPS
- GLONASS
- Beidou
- Galileo
- QZSS
- NAVIC		 - GPS
- GLONASS
- Beidou
- Galileo
- QZSS
NFC* Yes Yes
Infrared Port Yes Yes
Connectivity
SIM Count*22
SIM TypeNanoNano
SIM ModeDual SIM StandbyDual SIM Standby
eSIM Support *NoYes
Hybrid SlotNoNo
2G BandsGSM 2/3/5/8GSM 850/900/1800MHz
3G BandsWCDMA 1/2/4/5/6/8/19WCDMA 1/4/5/8/19
LTE Bands*LTE (B1/B2/B3/B4/B5/B7/B8/B18/B19/B20/B26/B28/B38/B40/B41/B42/B48/B66)LTE (B1/B2/B3/B4/B5/B8/B18/B19/B25/B26/B28/B34/B38/B39/B40/B41/B42/B43/B48/B66)
LTE category20n/a
5G SupportYesYes

Sound

Speakers Stereo n/a
3.5 mm Jack No No
FM Radio No No
Dolby Atmos Yes No
Speaker Test
Max Volume
Xiaomi 14 Ultra
90.3 dB
Oppo Reno 15
n/a

Other

Class Flagship Mid-range
Announced February, 2024 yr November, 2025 yr
Release Date February, 2024 yr November, 2025 yr
Launch Price ($) 1499 n/a
MSRP ($) n/a 400
Sensors - Barometer
- Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor		 - Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
Charger Included Yes 90 W Yes, 80 W

Note

Xiaomi 14 Ultra:

The rear cover is available in glass or eco-leather, while the frame can be aluminum or titanium. The front glass is either Xiaomi Shield Glass or Xiaomi Longjing Glass.

* Attention! Config, frequencies, NFC, and other specs may vary by region.

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