Home Phone comparison Oppo Find X7 Ultra and Xiaomi Redmi 15 5G - Which is better?

Oppo Find X7 Ultra vs Xiaomi Redmi 15 5G

89 out 100
Oppo Find X7 Ultra
VS
61 out 100
Xiaomi Redmi 15 5G
Oppo Find X7 Ultra
Xiaomi Redmi 15 5G

Compared 2 smartphones : Oppo Find X7 Ultra Manufactured in January, 2024, with display 6.82 with chipsetQualcomm Snapdragon 8 Gen 3, vs Xiaomi Redmi 15 5G, Manufactured in August, 2025with chipsetQualcomm Snapdragon 6s Gen 3. 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 Oppo Find X7 Ultra
  • Higher pixel density: 510ppi
  • Lighter design: 221g vs 224g
  • Newer Bluetooth version: 5.4 vs 5.1
  • Supports newer USB: 3.2 vs 2
  • Supports DisplayPort
Reasons to choose Xiaomi Redmi 15 5G
  • Larger display: 6.9in
  • Higher refresh rate: 144Hz
  • Higher battery capacity: 7000mAh vs 5000mAh

Versions

Available versions and configurations
Memory Options - 12/256 GB
- 16/256 GB
- 16/512 GB		 - 4/128 GB
- 6/128 GB
- 8/256 GB

Review

Key Specs Oppo Find X7 Ultra and Xiaomi Redmi 15 5G
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:
Oppo Find X7 Ultra
vs
Xiaomi Redmi 15 5G

Display

Display quality comparison
Type AMOLED IPS LCD
Size 6.82 in 6.9 in
Resolution 1440x3168 pixels 1080x2340 pixels
Aspect ratio 20:9 19.5:9
Pixel density 510 ppi 374 ppi
Refresh rate 120 Hz 144 Hz
Adaptive refresh rate Yes Yes
Max brightness 4500 nits n/a
HDR support Yes Dolby Vision No
Touch Sampling Rate 240 Hz n/a
Screen-to-body ratio 89.7 % 83.1 %
Features - DCI-P3
- Always-On Display
- DC dimming		 n/a
Display test
Peak brightness (auto)
Oppo Find X7 Ultra
1160 nits
Xiaomi Redmi 15 5G
n/a
sRGB gamut97.9 %n/a
PWM (Flicker)91 Hzn/a
Response time2 msn/a
Contrast∞ Infiniten/a
Sources: NotebookCheck [Oppo Find X7 Ultra]

Design & Build

Design and ergonomics comparison
Height 164.3 mm (6.47 in) 171.1 mm (6.74 in)
Width 76.2 mm (3 in) 82.1 mm (3.23 in)
Thickness 9.5 mm (0.37 in) 8.6 mm (0.34 in)
Weight 221 g (7.8 oz) 224 g (7.9 oz)
Water resistance IP68 IP64
Cooling system Vapor chamber n/a
Back panel Glass Plastic
Frame Metal Plastic
Colors - Black
- Blue
- Brown		 - Black
- Gray
- Green
Fingerprint sensor Yes In-Display Yes, In-Button
Screen-to-body ratio
Oppo Find X7 Ultra
89.7 %
Xiaomi Redmi 15 5G
83.1 %

Performance

Testing Oppo Find X7 Ultra and Xiaomi Redmi 15 5G In benchmarks
Processor
Chipset Qualcomm Snapdragon 8 Gen 3 Qualcomm Snapdragon 6s Gen 3
Max Frequency 3300 MHz 2300 MHz
CPU Cores 8 (1 + 3 + 2 + 2) 8 (2 + 6)
Architecture - 2/2.27 (Cortex-A520)
- 2/2.96 (Cortex-A720)
- 3/3.15 (Cortex-A720)
- 1/3.3 (Cortex-X4)		 - 6/2 (Cortex-A55)
- 2/2.3 (Cortex-A78)
Process TSMC TSMC
Transistor Size 4 nm 6 nm
Neural Processor Hexagon Hexagon
Graphics Adreno 750 Adreno 619
GPU Cores 1536 256
GPU Frequency 903-1000 MHz 900 MHz
FLOPS 2774 GFLOPS 460.8 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Oppo Find X7 Ultra
2228
Xiaomi Redmi 15 5G
935
Geekbench 6 (Multi-Core)
Oppo Find X7 Ultra
7352
Xiaomi Redmi 15 5G
2109
Geekbench 6 (Single-Core)2228935
Geekbench 6 (Multi-Core)73522109
Sources: Geekbench v6 [Oppo Find X7 Ultra]
AnTuTu 10
AnTuTu 10
Oppo Find X7 Ultra
2041218
Xiaomi Redmi 15 5G
473154
CPU442026153170
GPU86994291687
Memory38379699792
UX345454128505
NanoReview Score2041218473154
3DMark Wild Life
3DMark Wild Life
Oppo Find X7 Ultra
16808
Xiaomi Redmi 15 5G
n/a
Sources: 3DMark [Oppo Find X7 Ultra]
PCMark 3.0
PCMark 3.0
Oppo Find X7 Ultra
14310
Xiaomi Redmi 15 5G
n/a
Writing score19438n/a
Web score11488n/a
Video editing6234n/a
Data manipulation14484n/a
NanoReview Score14310n/a

Memory

RAM
RAM Size - 12 GB
- 16 GB		 4 GB
Memory Type LPDDR5X LPDDR4X
Memory Frequency 4266 MHz 2133 MHz
Channels 4 2
Storage
Storage Capacity- 256 GB
- 512 GB		128 GB
Storage TypeUFS 4.0UFS 2.2
Memory CardNoNo

Software

OS Android 14 (Upgradeable to Android 15) Android 15
UI Skin ColorOS 15 HyperOS 2.0

Battery

Volume 5000 mAh 7000 mAh
Max Charging Power 100 W 33 W
Battery Type Li-Po n/a
Removable No No
Wireless Charging Yes (50 W) No
Reverse Charging Yes (Wireless) No
Fast Charging Yes (70% in 15 min) Yes
Full Charge Time 0:25 h n/a
Battery Life Test
Battery Life
Oppo Find X7 Ultra
25:51
Xiaomi Redmi 15 5G
n/a
Web Browsing11:41 hn/a
Video Playback17:53 hn/a
Games05:12 hn/a
Standby Mode105 hn/a

Main camera

Matrix 50 MP 50 MP
Photo resolution 8192x6144 pixels n/a
Zoom Optical, 6x Digital
Flash LED LED
Stabilization Optical Digital
8K Recording No No
4K Recording Yes (Up to 60 fps) No
1080p Recording Yes (Up to 60 fps) Yes (Up to 30 fps)
Slow Motion 480 fps (720p) n/a
Wide-angle lens 123 ° n/a
Lenses count Standard: 50 MP
Telephoto: 50 MP
Telephoto: 50 MP
Ultra-wide: 50 MP		 Standard: 50 MP
Depth
Features - Bokeh effect
- Pro mode
- RAW support		 Bokeh effect
Main lens
Matrix50 MP50 MP
Aperturef/1.8f/1.8
Focal length23 mmn/a
SensorSony LYT-900n/a
Sensor size1/0n/a
Pixel size1.6 μmn/a
AutofocusLaser autofocusPhase autofocus
StabilizationOpticalDigital
Telephoto
Matrix50 MPn/a
Aperturef/2.6n/a
Focal length65 mmn/a
SensorSony IMX890n/a
Sensor size1/1.56n/a
Pixel size1 μmn/a
StabilizationOpticaln/a
Ultra-wide lens
Matrix50 MPn/a
Aperturef/2.0n/a
Focal length14 mmn/a
SensorSony LYT-600n/a
Sensor size1/1.95n/a
Pixel size0.7 μmn/a
StabilizationDigitaln/a
Main camera DxOMark results
Photo quality
Oppo Find X7 Ultra
156
Xiaomi Redmi 15 5G
n/a
Video quality
Oppo Find X7 Ultra
156
Xiaomi Redmi 15 5G
n/a
Overall camera score
Oppo Find X7 Ultra
157
Xiaomi Redmi 15 5G
n/a
Bokeh85n/a
Preview79n/a
Zoom156n/a
Sources: DxOMark [Oppo Find X7 Ultra]

Front camera

Matrix 32 MP 8 MP
Photo resolution 6560x4928 pixels n/a
Aperture f/2.4 f/2.0
Focal length 21 mm n/a
Sensor Sony LYT-506 n/a
Sensor size 1/2.74 n/a
Pixel size 0.8 μm n/a
Autofocus Phase autofocus No
Stabilization Digital Digital
Video resolution 2160p (4K) at 60 fps 1080p (Full HD) at 30 fps
TOF 3D sensor No No

Connectivity

Wi-Fi version Wi-Fi 7 (802.11 a/b/g/n/ac/ax/be) Wi-Fi 5 (802.11 a/b/g/n/ac)
Wi-Fi features - Dual Band
- Wi-Fi MiMO
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display		 - Dual Band
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display
Bluetooth version 5.4 5.1
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 1.4 n/a
GPS - GPS
- GLONASS
- Beidou
- Galileo
- QZSS		 - GPS
- GLONASS
- Beidou
- Galileo
NFC* Yes Yes
Infrared Port Yes Yes
Connectivity
SIM Count*22
SIM TypeNanoNano
SIM ModeDual SIM StandbyDual SIM Standby
eSIM Support *NoNo
Hybrid SlotNoNo
2G BandsGSM 850, 900, 1800MHzn/a
3G BandsWCDMA 1, 2, 4, 5, 8n/a
LTE Bands*LTE (B1/B2/B3/B4/B5/B7/B8/B12/B17/B18/B19/B20/B26/B28/B66)n/a
5G SupportYesYes

Sound

Speakers Stereo n/a
3.5 mm Jack No Yes
FM Radio No Yes
Speaker Test
Max Volume
Oppo Find X7 Ultra
89.4 dB
Xiaomi Redmi 15 5G
n/a

Other

Class Flagship Mid-range
Announced January, 2024 yr August, 2025 yr
Release Date January, 2024 yr August, 2025 yr
Launch Price ($) 850 n/a
MSRP ($) n/a 230
Sensors - Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor		 - Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
Charger Included Yes 100 W Yes, 33 W
* Attention! Config, frequencies, NFC, and other specs may vary by region.

Results

After analyzing the data, we consider Oppo Find X7 Ultra the clear winner in this comparison.

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