In depth comparison and review of Xiaomi MI 8 Pro and OnePlus 9. Compare sizes, cameras, batteries, memory, and other important specifications and features to easily choose the right phone for you. Our goal is to help you uncover differences between the products and find the phone that will best fit your needs.
DESIGN AND DIMENSIONS | Xiaomi MI 8 Pro | OnePlus 9 |
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Product Type | Smartphone | Smartphone | |
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Form Factor | Touch | Touch | |
Height | 154.9 mm | 160 mm | OnePlus 9 has greater height than Xiaomi MI 8 Pro. |
Width | 74.8 mm | 74.2 mm | Xiaomi MI 8 Pro has greater width than OnePlus 9. |
Depth | 7.6 mm | 8.7 mm | Xiaomi MI 8 Pro is narrower than Xiaomi MI 8 Pro. |
Weight | 177 g | 192 g | Xiaomi MI 8 Pro is lighter than Xiaomi MI 8 Pro. |
Body Colour | Transparent titanium | Astral black | Arctic sky | |
Waterproof (Water-resistant) | - | - | |
SAR Value | 1.531 W/kg (body), 0.969 W/kg (head) | - | |
Connector Type | USB Type-C - 24 pin USB-C | USB Type-C - 24 pin USB-C | |
SIM Card Type (Size) | Nano SIM | Nano SIM | |
SIM Card Qty | Dual-SIM | Dual-SIM |
DISPLAY | Xiaomi MI 8 Pro | OnePlus 9 |
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Display Type | OLED display | OLED display | |
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Display Technology | AMOLED | Fluid Amoled | |
Screen Size (Display Size) | 6.21" | 6.55" | OnePlus 9 has larger screen size than Xiaomi MI 8 Pro. |
Screen Resolution (Display Resolution) | 2248 x 1080 pixels | 2400 x 1080 pixels | OnePlus 9 has better screen resolution than Xiaomi MI 8 Pro. |
Display Format | Full HD+ | Full HD+ | |
Pixel Density | 402 ppi | 402 ppi | Both phones have the same pixel density. |
Aspect Ratio | 18.7:9 | 20:9 | |
Max Brightness | 600 cd/m² | 1100 cd/m² | OnePlus 9 has better display brightness than Xiaomi MI 8 Pro. |
Colour Depth | - | 16.7 million colours | |
Contrast Ratio | 60000:1 | - | |
HDR | Yes | Yes | Both phones have HDR. |
HDR Technology | - | HDR10+ | |
Display Enhancement Technology | Sunlight mode | Vibrant Color Effect | |
Display Refresh Rate | - | 120 Hz | |
Display Features | Always-on display, Reading mode, Colour temperature adjustment, DCI-P3 Wide colour gamut | Always-on display, Reading mode, night mode, Wide colour display (P3), sRGB support | |
Display Protection (Screen Protector) | - | Corning Gorilla Glass (scratch resistant glass) |
PROCESSOR | Xiaomi MI 8 Pro | OnePlus 9 |
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Processor Type (CPU) | Qualcomm Snapdragon 845 AIE | Qualcomm Snapdragon 888 | |
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Clock Speed | 2.8 GHz | - | |
Processor Core Qty | 8-core | 8-core | Both phones have the same number of phone cores. |
64-bit Architecture | Yes | - | Xiaomi MI 8 Pro has 64-bit architecture. |
Graphics System (GPU) | Qualcomm ADRENO 630 | Qualcomm ADRENO 660 |
MEMORY | Xiaomi MI 8 Pro | OnePlus 9 |
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RAM | LPDDR4X SDRAM - 8 GB | LPDDR5 SDRAM - 8 GB | Both phones have the same RAM size. |
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Internal Memory Size (Storage Capacity) | 128 GB | 128 GB | Both phones have the same internal memory capacity. |
Memory Interface | - | UFS 3.1 |
CAMERA | Xiaomi MI 8 Pro | OnePlus 9 |
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MAIN CAMERA |
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Number of Main Cameras | 2 | 3 | |
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Sensor Resolution | 12 Megapixel | 48 Megapixel | OnePlus 9 has better camera resolution than Xiaomi MI 8 Pro. |
Sensor Size | - | 1/1.43" | |
Sensor Name | - | Sony Exmor RS IMX689 sensor | |
Lens Type | Wide-angle lens | - | |
Lens Aperture | F/1.8 | F/1.8 | Both phones have the same camera lens aperture. |
Lens Construction | - | 7-element | |
Pixel Size | - | 1.12 μm | |
Optical Image Stabiliser (OIS) | 4-axis OIS (Optical Image Stabilisation) | - | Xiaomi MI 8 Pro has optical stabilisation. |
Focus Adjustment | Automatic | Automatic | |
Laser Auto Focus | - | Yes | |
Minimum Focal Length (Focal Distance) | - | 23 mm | |
Special Effects | HDR | HDR | |
Camera Modes | Burst mode, Panorama, low-light shots, portrait mode, AI Beautify, Portrait mode with background blurring | Panorama, Time-lapse mode, Pro mode, HYPERLAPSE, Nightscape capture mode, Portrait, Filter mode, Super Macro, Portrait video, UltraShot HDR, Smart Scene Recognition, Tilt-shift mode, Focus Peaking, Cat/Dog Face Focus, Super Stable, Video Nightscape | |
Face Recognition (Face ID) | Face recognition | - | Xiaomi MI 8 Pro has face detection. |
Light Source | LED flash | Dual LED flash | |
Video Resolutions | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps, Slo-mo video 1280 x 720 (720p) at 240 fps, 3840 x 2160 (4K) at 30 fps, Slo-mo video 1920 x 1080 (1080p) at 240 fps | 1920 x 1080 (1080p) at 30 fps, 1920 x 1080 (1080p) at 60 fps, 3840 x 2160 (4K) at 30 fps, 3840 x 2160 (4K) at 60 fps, Super slow motion video 1920 x 1080 (1080p) at 240 fps, Super slow motion video 1280 x 720 (720p) at 480 fps, 7680 x 4320 (8K) at 30fps | |
Camera Features (Functions) | Dual Pixel Autofocus technology, AI Dual camera, AI scene detection, AI Beautify, AI studio lighting, AI short video editing, AI high-res photos, AI Dynamic | Tracking Focus, Phase Detect Auto-Focus (PDAF), Continuous Auto Focus (CAF), RAW image capture, Dual Native ISO, 2x2 On-Chip Lens (OCL), Hasselblad Camera, Natural Color Calibration, 12-bit RAW |
SECOND CAMERA |
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Sensor Resolution (2nd Camera) | 12 Megapixel | 50 Megapixel | OnePlus 9 has better second camera resolution than Xiaomi MI 8 Pro. |
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Sensor Size (2nd Camera) | - | 1/1.56" | |
Sensor Name (2nd Camera) | - | Sony Exmor RS IMX766 sensor | |
Lens Type (2nd Camera) | Telephoto lens | Ultra wide-angle lens | |
Lens Aperture (2nd Camera) | F/2.4 | F/2.2 | OnePlus 9 has better second camera lens aperture than Xiaomi MI 8 Pro. |
Lens Element Qty (2nd Camera) | - | 7-element | |
Field of View (2nd Camera) | - | 119 degree(s) | |
Minimum Focal Length (2nd Camera) | - | 14 mm | |
Camera Features (2nd Camera) | Portrait lens | 2x2 On-Chip Lens (OCL), Freeform Lens |
THIRD CAMERA |
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Sensor Resolution (3rd Camera) | - | 2 Megapixel | |
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Lens Aperture (3rd Camera) | - | F/2.4 | |
Lens Element Qty (3rd Camera) | - | 3-element | |
Camera Functions (3rd Camera) | - | Monochrome |
FRONT CAMERA |
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Number of Front Cameras | 1 | 1 | |
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Sensor Resolution (Front) | 20 Megapixel | 16 Megapixel | Xiaomi MI 8 Pro has better front camera resolution than OnePlus 9. |
Sensor Name (Front) | - | Sony Exmor RX IMX471 sensor | |
Lens Aperture (Front) | - | F/2.4 | |
Pixel Size (Front) | - | 1 μm | |
Focus Adjustment | - | Focus free | |
Special Effects (Front) | Mirror | HDR, face retouch | |
Camera Modes (Front) | AI portrait mode, 3D beauty mode | Time-lapse mode | |
Face Recognition (Face ID) | Face recognition | - | Xiaomi MI 8 Pro has face detection. |
Light Source (Front) | - | Display flash | |
Video Resolutions (Front) | - | 1920 x 1080 (1080p) at 30 fps | |
Camera Features (Front) | Self-timer, 3D Beautify | Electronic Image Stabiliser (EIS) |
BATTERY AND CHARGING | Xiaomi MI 8 Pro | OnePlus 9 |
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Battery Capacity (Battery Size) | 3000 mAh | 4500 mAh | OnePlus 9 has larger battery capacity than Xiaomi MI 8 Pro. |
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Fast Charging Technology | Qualcomm Quick Charge 4.0+ | Qualcomm Quick Charge, Warp Charge 65T technology | Both phones have fast charging technology. |
Recharge Time (Charging Time) | - | 29 min | |
Wireless Charging | - | Yes | OnePlus 9 can be charged wirelessly. |
Wireless Charging Standards | - | Qi |
CELLULAR | Xiaomi MI 8 Pro | OnePlus 9 |
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Technology | CDMA2000 1X / GSM / WCDMA (UMTS) / TD-SCDMA | WCDMA (UMTS) / GSM | |
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Mobile Broadband Generation | 4G | 5G | OnePlus 9 has more advanced generation mobile network. |
Operating System | - | OxygenOS (based on Android 11) | |
Payment Technology | Android Pay | - | |
Navigation | GPS, GLONASS, BeiDou, Galileo, QZSS | GPS, A-GPS, GLONASS, BeiDou, Galileo |
COMMUNICATIONS | Xiaomi MI 8 Pro | OnePlus 9 |
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Data Transmission | GPRS, EDGE, EV-DO, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE | FDD-LTE, TDD-LTE, 5G NR FR1 | |
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2G Band | - | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | |
3G UMTS Band | Band 1, Band 2, Band 4, Band 5, Band 8 | Band 1, Band 2, Band 4, Band 5, Band 8, Band 9, Band 19 | |
3G UMTS Frequency | 2100, 1900, 1700, 850, 900 | 2100, 1900, 1700, 850, 900, 1700, 800 | |
4G LTE Band | Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 12, Band 17, Band 20, Band 34, Band 38, Band 39, Band 40, Band 41 | Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 12, Band 13, Band 17, Band 18, Band 19, Band 20, Band 25, Band 26, Band 28, Band 32, Band 38, Band 39, Band 40, Band 41, Band 66 | |
4G LTE Frequency | FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 700a, FDD 700b, FDD 800 DD, TDD 2000, TDD 2600, TDD 1900, TDD 2300, TDD 2500 | FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 700a, FDD 700c, FDD 700b, FDD 800 lower, FDD 800 upper, FDD 800 DD, FDD 1900+, FDD 850+, FDD 700 APT, FDD 1500 L, TDD 2600, TDD 1900, TDD 2300, TDD 2500, FDD 1700 - 2110 AWS-3 | |
5G NR Band | - | N1, n3, n5, n7, n8, n20, n28, n38, n41, n66, n78, n40 | |
5G NR Frequency | - | FDD 2100, FDD 1800, FDD 850, FDD 2600, FDD 900, FDD 800, FDD 700APT, TDD TD 2600, TDD TD 2500, FDD AWS-3, TDD TD 3500, TDD 2300 | |
Wireless Interface | IEEE 802.11a/b/g/n/ac | IEEE 802.11a/b/g/n/ac/ax | |
Bluetooth | Bluetooth 5.0 | Bluetooth 5.2 | |
NFC | Yes | Yes | Both phones have an NFC reader for mobile payments. |
Modem | - | Snapdragon X55 5G | |
Messaging Services | SMS, MMS | - |
MEDIA | Xiaomi MI 8 Pro | OnePlus 9 |
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Supported Digital Audio Standards | WAV, AAC, PCM, AMR, MP3, FLAC, AAC +, eAAC+, APE (Monkey's Audio), apt-X, AMR-WB, AMR-NB, apt-X HD | WAV, WMA, AAC, MP3, FLAC, AC-3, AAC +, OGG, APE (Monkey's Audio), M4A, LDAC, IMY, EAC3, MID, AMR-WB, AMR-NB, EAC3-JOC, AC-4 | |
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Supported Digital Video Standards | MKV, XviD, MPEG-4, H.264, M4V, HEVC, H.265, ASP | MKV, FLV, AVI, MOV, WMV, 3GP, TS, WebM, H.265 HEVC, MP4 | |
Sound Enhancements | - | Qualcomm aptX audio, Qualcomm aptX HD audio, Dolby Atmos Surround Sound |
FEATURES | Xiaomi MI 8 Pro | OnePlus 9 |
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Phone Functions | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | |
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Sensors | Accelerometer, ambient light sensor, proximity sensor, digital compass, barometer, gyro sensor, hall sensor, Time of Flight (ToF), infrared (IR) sensor | Accelerometer, ambient light sensor, proximity sensor, digital compass, gyro sensor, flicker sensor, sensor core | |
Security Devices | Fingerprint reader (under display), face recognition | Fingerprint reader (under display), face recognition | |
Security Technology | IR face unlock | - | |
Additional Phone Features | Face Unlock, MU-MIMO technology | Noise Cancellation Technology, MIMO technology, Gesture Controls, OnePlus Switch, Alert Slider, dual stereo speakers, Zen mode 2.0, OnePlus Games |
OTHERS | Xiaomi MI 8 Pro | OnePlus 9 |
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Included Accessories | Power adapter, SIM card removal tool, USB-C to 3.5 jack adapter, USB-C cable, soft protective case, 18W QC3.0 charger | SIM card removal tool, sticker, screen protector, USB-C to USB-C cable, protective case, Warp Charge 65 power adapter | |
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Compliant Standards | - | SGS |