Home Phone comparison OnePlus 9 and Xiaomi Poco M8 5G - Which is better?

OnePlus 9 vs Xiaomi Poco M8 5G

63 out 100
OnePlus 9
VS
60 out 100
Xiaomi Poco M8 5G
OnePlus 9
Xiaomi Poco M8 5G

Compared 2 smartphones : OnePlus 9 Manufactured in March, 2021, with display 6.55 with chipsetQualcomm Snapdragon 888 5G, vs Xiaomi Poco M8 5G, Manufactured in January, 2026 with chipsetQualcomm Snapdragon 6 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 OnePlus 9
  • Higher pixel density: 402ppi
  • Newer Bluetooth version: 5.2 vs 5.1
  • Supports newer USB: 3.1 vs 2
  • Supports DisplayPort
  • Supports Dolby Atmos
Reasons to choose Xiaomi Poco M8 5G
  • Larger display: 6.77in
  • Lighter design: 178g vs 192g
  • Higher battery capacity: 5520mAh vs 4500mAh
  • Infrared port

Versions

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

Review

Key Specs OnePlus 9 and Xiaomi Poco M8 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.
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Function
Importance (Weight)
Display:
Camera:
Performance:
Gaming:
Battery:
Connectivity:
Higher weight means greater impact on NanoReview score.

Tests & specs

Specs & test comparison
Smartphones:
OnePlus 9
vs
Xiaomi Poco M8 5G

Display

Display quality comparison
Type AMOLED AMOLED
Size 6.55 in 6.77 in
Resolution 1080x2400 pixels 1080x2340 pixels
Aspect ratio 20:9 n/a
Pixel density 402 ppi 388 ppi
Refresh rate 120 Hz 120 Hz
Adaptive refresh rate Yes Yes (60-120 Hz)
Max brightness 500 nits 800 nits
HDR support Yes HDR10+ Yes, HDR10+
Screen-to-body ratio 87.3 % 89.7 %
Features - DCI-P3
- Always-On Display
- DC dimming		 DCI-P3
Display test
Peak brightness (auto)
OnePlus 9
818 nits
Xiaomi Poco M8 5G
n/a
sRGB gamut98.9 %n/a
PWM (Flicker)323 Hzn/a
Response time13 msn/a
Contrast∞ Infiniten/a
Sources: NotebookCheck [OnePlus 9]

Design & Build

Design and ergonomics comparison
Height 160 mm (6.3 in) 164 mm (6.46 in)
Width 74.2 mm (2.92 in) 75.4 mm (2.97 in)
Thickness 8.7 mm (0.34 in) 7.4 mm (0.29 in)
Weight 192 g (6.77 oz) 178 g (6.28 oz)
Water resistance No IP65
Back panel Glass Plastic
Frame Plastic Plastic
Colors - Black
- Blue
- Purple		 - Black
- Silver
- Green
Fingerprint sensor Yes In-Display Yes, In-Display
Screen-to-body ratio
OnePlus 9
87.3 %
Xiaomi Poco M8 5G
89.7 %

Performance

Testing OnePlus 9 and Xiaomi Poco M8 5G In benchmarks
Processor
Chipset Qualcomm Snapdragon 888 5G Qualcomm Snapdragon 6 Gen 3
Max Frequency 2840 MHz 2400 MHz
CPU Cores 8 (1 + 3 + 4) 8 (4 + 4)
Architecture - 4/1.8 (Kryo 680 Silver (Cortex-A55))
- 3/2.42 (Kryo 680 Gold (Cortex-A78))
- 1/2.84 (Kryo 680 Prime (Cortex-X1))		 - 4/1.8 (Cortex-A55)
- 4/2.4 (Cortex-A78)
Process Samsung Samsung
Transistor Size 5 nm 4 nm
Neural Processor Hexagon 780 Hexagon
Graphics Adreno 660 Adreno 710
GPU Cores 1024 256
GPU Frequency 840 MHz 1010 MHz
FLOPS 1290.2 GFLOPS 517.1 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
OnePlus 9
1489
Xiaomi Poco M8 5G
1020
Geekbench 6 (Multi-Core)
OnePlus 9
3996
Xiaomi Poco M8 5G
2853
Geekbench 6 (Single-Core)14891020
Geekbench 6 (Multi-Core)39962853
AnTuTu 10
AnTuTu 10
OnePlus 9
937505
Xiaomi Poco M8 5G
638701
CPU248662197012
GPU308723145492
Memory169685145821
UX210435150376
NanoReview Score937505638701
3DMark Wild Life
3DMark Wild Life
OnePlus 9
5761
Xiaomi Poco M8 5G
n/a
Max Surface Temp.48.8 °Cn/a
Stability55 %n/a
Graphics Test34 fpsn/a
Graphics Score5761n/a
Sources: 3DMark [OnePlus 9]
PCMark 3.0
PCMark 3.0
OnePlus 9
12032
Xiaomi Poco M8 5G
n/a
Writing score15081n/a
Web score11112n/a
Video editing6018n/a
Data manipulation10751n/a
NanoReview Score12032n/a

Memory

RAM
RAM Size - 8 GB
- 12 GB		 8 GB
Memory Type LPDDR5 LPDDR4X
Memory Frequency 2750 MHz 2133 MHz
Channels 4 2
Storage
Storage Capacity- 128 GB
- 256 GB		256 GB
Storage TypeUFS 3.1UFS 2.2
Memory CardNoNo

Software

OS Android 11 (Upgradeable to Android 13) Android 15
OS Size 35 GB n/a
UI Skin OxygenOS 13 HyperOS 2.0

Battery

Volume 4500 mAh 5520 mAh
Max Charging Power 65 W 45 W
Battery Type Li-Po Silicon Carbon (Si/C)
Removable No No
Wireless Charging Yes (15 W) No
Reverse Charging No Yes
Fast Charging Yes (100% in 29 min) Yes
Full Charge Time 0:29 h n/a
Battery Life Test
Battery Life
OnePlus 9
19:38
Xiaomi Poco M8 5G
n/a
Web Browsing07:52 hn/a
Video Playback11:44 hn/a
Games04:32 hn/a
Standby Mode96 hn/a

Main camera

Matrix 48 MP 50 MP
Photo resolution 8000x6000 pixels 8192x6144 pixels
Zoom Digital Digital
Flash Dual LED LED
Stabilization Digital Optical
8K Recording Yes (Up to 30 fps) No
4K Recording Yes (Up to 120 fps) Yes (Up to 30 fps)
1080p Recording Yes (Up to 60 fps) Yes (Up to 60 fps)
Slow Motion 240 fps (1080p) n/a
Wide-angle lens 140 ° n/a
Lenses count Standard: 48 MP
Ultra-wide: 50 MP
Monochrome: 2 MP		 Standard: 50 MP
Depth
Features - Bokeh effect
- Pro mode
- RAW support		 - Bokeh effect
- Pro mode
Main lens
Matrix48 MP50 MP
Aperturef/1.8f/1.8
Focal length23 mmn/a
SensorSony IMX689Omnivision OV50D40 Light Hunter 400
Sensor size1/1.431/2.88 (0.35)
Pixel size1.12 μm0.61 μm
AutofocusPhase autofocusPhase autofocus
StabilizationDigitalOptical
Ultra-wide lens
Matrix50 MPn/a
Aperturef/2.2n/a
Focal length14 mmn/a
SensorSony IMX766n/a
Sensor size1/1.56n/a
Pixel size1 μmn/a
StabilizationDigitaln/a
Main camera DxOMark results
Photo quality
OnePlus 9
123
Xiaomi Poco M8 5G
n/a
Video quality
OnePlus 9
104
Xiaomi Poco M8 5G
n/a
Overall camera score
OnePlus 9
115
Xiaomi Poco M8 5G
n/a
Sources: DxOMark [OnePlus 9]

Front camera

Matrix 16 MP 20 MP
Photo resolution 4920x3264 pixels n/a
Aperture f/2.0 f/2.2
Sensor Sony IMX471 n/a
Sensor size 1/3.06 n/a
Pixel size 1 μm n/a
Autofocus Phase autofocus No
Stabilization Digital Digital
Video resolution 1080p (Full HD) at 30 fps 1080p (Full HD) at 60 fps
TOF 3D sensor No No

Connectivity

Wi-Fi version Wi-Fi 6 (802.11 a/b/g/n/ac/ax) Wi-Fi 5 (802.11 a/b/g/n/ac)
Wi-Fi features - Dual Band
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display		 - Dual Band
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display
Bluetooth version 5.2 5.1
Bluetooth features LE, A2DP LE
USB type USB Type-C USB Type-C
USB version 3.1 2
USB features - Charging
- USB Storage Mode
- OTG		 - Charging
- USB Storage Mode
- OTG
DisplayPort Yes No
GPS - GPS
- GLONASS
- Beidou
- Galileo
- SBAS		 - GPS
- GLONASS
- Beidou
- Galileo
- QZSS
NFC* Yes Varies by region
Infrared Port No Yes
Connectivity
SIM Count*22
SIM TypeNanoNano
SIM ModeDual SIM StandbyDual SIM Standby
eSIM Support *NoNo
Hybrid SlotNoNo
2G BandsGSM B2, 3, 5, 8n/a
3G BandsWCDMA B1, 2, 4, 5, 8, 9, 19n/a
LTE Bands*LTE (B1/B2/B3/B4/B5/B7/B8/B12/B13/B17/B18/B19/B20/B25/B26/B28/B30/B32/B38/B39/B40/B41/B46/B48/B66/B71)n/a
LTE category20n/a
5G SupportYesYes

Sound

Speakers Stereo n/a
3.5 mm Jack No No
FM Radio No Yes
Dolby Atmos Yes n/a
Speaker Test
Max Volume
OnePlus 9
83 dB
Xiaomi Poco M8 5G
n/a

Other

Class Flagship Mid-range
Announced March, 2021 yr January, 2026 yr
Release Date March, 2021 yr January, 2026 yr
Launch Price ($) 730 n/a
MSRP ($) n/a 229
Sensors - Barometer
- Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor		 - Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
* Attention! Config, frequencies, NFC, and other specs may vary by region.

Results

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