Xiaomi Poco X8 Pro Max vs Oppo K15 Pro

86 out of 100
Xiaomi Poco X8 Pro Max
VS
79 out of 100
Oppo K15 Pro

Here we compared two mid-range smartphones: the 6.83-inch Xiaomi Poco X8 Pro Max (with MediaTek Dimensity 9500s) that was released on March 17, 2026, against the Oppo K15 Pro, which is powered by MediaTek Dimensity 8500 Super and came out 1 month after. On this page, you will find tests, full specs, strengths, and weaknesses of each of the devices.

Select the amount of RAM to evaluate performance and value for money more precisely
Memory

Key differences

An overview of the main advantages of each smartphone
Reasons to consider the Xiaomi Poco X8 Pro Max
  • Comes with 1000 mAh larger battery capacity: 8500 vs 7500 mAh
  • Newer Bluetooth version (v6.0)
  • Slow-motion recording at 960FPS
  • 35% better performance in AnTuTu Benchmark (3032K versus 2254K)
  • Compatible with the latest Wi-Fi 7 wireless networks
  • Supports higher wattage charging (100W versus 80W)
  • Faster storage type - UFS 4.1 versus UFS 3.1
  • 76% faster in single-core GeekBench 6 test: 2725 and 1544 points
  • Ready for eSIM technology
Reasons to consider the Oppo K15 Pro
  • Higher display refresh rate – 144 Hz
  • Waterproof body (IP69 classification)
  • Weighs 18 grams less

Review

Evaluation of Xiaomi Poco X8 Pro Max and Oppo K15 Pro crucial features
Display
Screen quality, color accuracy, brightness
Camera
Photo and video recording quality
Performance
CPU and memory performance (apps, system)
Gaming
Capabilities for playing modern games
Battery
Battery life, charging type and speed
Connectivity
Networks, ports, data transmission
Scores with a red asterisk (*) are approximate and may change in the future as we gather more data.
NanoReview Score
Final comparison evaluation
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Value for money (Beta)

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Currency
12 / 256 GB
VS
12 / 256 GB
129.1
(Excellent)
Value Index
111.9
(Excellent)

Tests and specifications

Comparison table of technical specifications and tests

Display

Type AMOLED AMOLED
Size 6.83 inches 6.59 inches
Resolution 1280 x 2772 pixels 1256 x 2760 pixels
Aspect ratio 19.5:9 19.5:9
PPI 447 ppi 460 ppi
Refresh rate 120 Hz 144 Hz
Adaptive refresh rate Yes (30-120 Hz) Yes
Max rated brightness 2000 nits 1200 nits
Max rated brightness in HDR 3500 nits -
HDR support Yes, Dolby Vision -
Touch sampling rate 480 Hz 240 Hz
Screen protection Corning Gorilla Glass 7i Crystal Shield Glass
Screen-to-body ratio 90.2% 89.6%
Display features - DCI-P3
- Always-On Display
- DC Dimming
- DCI-P3
- DC Dimming
Screen space comparison
Poco X8 Pro Max
6.83β€³ (19.5:9 ratio) = 17.7 in2
K15 Pro
6.59β€³ (19.5:9 ratio) = 16.5 in2
~7% more screen space
Peak brightness test (auto)
3542 nits
n/a

Design and build

Height 162.9 mm (6.41 inches) 158.3 mm (6.23 inches)
Width 77.9 mm (3.07 inches) 75.13 mm (2.96 inches)
Thickness 8.2 mm (0.32 inches) 8.3 mm (0.33 inches)
Weight 218 g (7.69 oz) 200 g (7.05 oz)
Waterproof IP68 IP69
Advanced cooling Vapor chamber Active fan
Rear material Glass -
Frame material Metal Metal
Colors White, Black, Blue Black, Silver, Gray, Pink
Fingerprint scanner Yes, in-display Yes, in-display
Repairability Average (2.63/5) -
Drop resistance Very good (B) Β· 180 drops -
Screen-to-body ratio
90.2%
89.6%

Performance

Chipset specifications of Xiaomi Poco X8 Pro Max and Oppo K15 Pro
SoC
Chipset MediaTek Dimensity 9500s MediaTek Dimensity 8500 Super
Max clock 3730 MHz 3400 MHz
CPU cores 8 (1 + 3 + 4) 8 (1 + 3 + 4)
Architecture - 4 cores at 2.4 GHz: Cortex-A720
- 3 cores at 3.3 GHz: Cortex-X4
- 1 core at 3.73 GHz: Cortex-X925
- 4 cores at 2.2 GHz: Cortex-A725
- 3 cores at 3.2 GHz: Cortex-A725
- 1 core at 3.4 GHz: Cortex-A725
L3 cache 12 MB 6 MB
Manufacturing TSMC TSMC
Lithography process 3 nanometers 4 nanometers
Neural processor (NPU) MediaTek NPU MediaTek NPU 880
GPU
Graphics Mali-G925 Immortalis MP11 Mali-G720 MP8
GPU shading units 1536 1024
GPU clock 1612 MHz 1508 MHz
FLOPS ~4952.1 GFLOPS ~3088.4 GFLOPS

Benchmarks

Benchmark comparison of Xiaomi Poco X8 Pro Max and Oppo K15 Pro
Geekbench 6 (Single-Core)
2725
1544
Geekbench 6 (Multi-Core)
8932
6223
Compute Score (GPU)
20990
13540
Compute Score (GPU) 20990 13540
Single-core score 2725 1544
Multi-core score 8932 6223
Sources: Geekbench [3], [4]
AnTuTu Benchmark 11
3032039
2254164
CPU 896417 656927
GPU 1062397 723293
Memory 451911 311521
UX 621314 562423
Total score 3032039 2254164
Samples [64 tests] Less than 3
AnTuTu 11 Ranking List (#105th place)

Recent User Tests

The latest benchmark tests that have been submitted by users
Xiaomi Poco X8 Pro Max
DateBenchmarkResult
πŸ“˜ 2026-09-24 (RuL)Geekbench 7 GPU18202
πŸ“˜ 2026-09-24 (RuL)Geekbench 7 CPU2460 / 7817
πŸ“˜ 2026-09-19 (Zimz)AnTuTu 123279234
πŸ“˜ 2026-09-15 (RuL)AnTuTu 123274318
πŸ“˜ 2026-09-12 (Dilshodbek)AnTuTu 112828966
Oppo K15 Pro
No benchmark results yet

Memory

RAM
RAM size 12 GB 12 GB
Memory type LPDDR5X LPDDR5X
Channels 4 4
Storage
Storage size 256 GB 256 GB
Storage type UFS 4.1 UFS 3.1
Memory card No No

Software

Operating system Android 16 Android 16
ROM HyperOS 3.0 ColorOS 16
OS updates 5 years -
Security updates 6 years -

Battery

Capacity 8500 mAh 7500 mAh
Max charge power 100 W 80 W
Battery type Silicon-Carbon (Si/C) Silicon-Carbon (Si/C)
Replaceable No No
Wireless charging No No
Reverse charging Yes Yes
Bypass charging No Yes
Fast charging Yes (65% in 30 min) Yes
Full charging time 0:52 hr -
Battery cycles 1000 cycles -
Battery life tests
Web browsing 18:13 hr -
Watching video 30:00 hr -
Gaming 11:54 hr -
Standby 157 hr -
General battery life
41:26 hr
n/a

Main camera

Matrix 50 megapixels 50 megapixels
Image resolution 8192 x 6144 8192 x 6144
Zoom Digital Digital
Flash Dual LED Dual LED
Stabilization Optical Optical
8K video recording No No
4K video recording Up to 60FPS Up to 60FPS
1080p video recording Up to 60FPS Up to 60FPS
Slow motion 960 FPS (1080p) 240 FPS (1080p)
Angle of widest lens - 116Β°
Lenses 1) Standard: 50 MP
2) Ultrawide: 8 MP
1) Standard: 50 MP
2) Ultrawide: 8 MP
Camera features - Bokeh mode
- Pro mode
- Bokeh mode
- Pro mode
Standard lens
Image resolution 50 MP 50 MP
Aperture f/1.5 f/1.8
Focal length 26 mm 24 mm
Sensor Omnivision Light Fusion 600 -
Sensor size 1/1.95" (β‰ˆ 0.51 inch) -
Pixel size 0.8 micron -
Autofocus Phase autofocus Phase autofocus
Stabilization Optical Optical
Ultra-wide lens
Image resolution 8 MP 8 MP
Aperture f/2.2 f/2.2
Focal length 15 mm 15 mm
Sensor SmartSens SC821CS -
Sensor size 1/4.0" (β‰ˆ 0.25 inch) -
Pixel size 1.12 micron -
Stabilization Digital Digital

Selfie camera

Megapixels 20 megapixels 16 megapixels
Image resolution 5184 x 3888 -
Aperture f/2.2 f/2.4
Focal length 25 mm 23 mm
Sensor OmniVision OV20B -
Sensor size 1/4.0" (β‰ˆ 0.25 inch) -
Pixel size 0.7 micron -
Autofocus No No
Stabilization Digital Digital
Video resolution 1080p (Full HD) at 60 FPS 1080p (Full HD) at 60 FPS
Depth sensor (TOF 3D) No No

Connectivity

Wi-Fi standard Wi-Fi 7 (802.11 a/b/g/n/ac/ax/be) Wi-Fi 6 (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 6.0 5.4
Bluetooth features LE LE
USB type USB Type-C USB Type-C
USB version 2 2
USB features - Charging
- USB-Storage mode
- OTG
- Charging
- USB-Storage mode
- OTG
DisplayPort No No
GPS GPS, GLONASS, Beidou, Galileo, QZSS, NAVIC GPS, GLONASS, Beidou, Galileo, QZSS, NAVIC
NFC* Depends on the region Yes
Infrared port Yes Yes
Network
Number of SIM* 2 2
Type of SIM card Nano Nano
Multi SIM mode Standby Standby
eSIM support* Yes No
Hybrid slot No No
5G support Yes Yes

Sound

Speakers Stereo Stereo
Headphone audio jack No No
FM radio No No
Dolby Atmos Yes -

Other

Category Mid-range Mid-range
Announced March 2026 April 2026
Release date March 2026 April 2026
Launch price (MSRP) $429 $415
Sensors - Proximity sensor
- Gyroscope
- Accelerometer
- Ambient light sensor
- Compass
- Fingerprint
- Proximity sensor
- Gyroscope
- Accelerometer
- Ambient light sensor
- Compass
- Fingerprint
Bundled charger Yes, 100 W Yes, 80 W
*Disclaimer! NFC, GSM network support, and some other specs can be different depending on the country.

Conclusion

After analyzing all the data, we think that the Xiaomi Poco X8 Pro Max is definitely a better buy.

Cast your vote

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2 (100%)
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Total votes: 2

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