In depth comparison and review of Xiaomi MI Mix 3 5G and OnePlus 8. 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 Mix 3 5G | OnePlus 8 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Form Factor | Touch slider | Touch | |
| Height | 157.89 mm | 160.2 mm | OnePlus 8 has greater height than Xiaomi MI Mix 3 5G. |
| Width | 74.69 mm | 72.9 mm | Xiaomi MI Mix 3 5G has greater width than OnePlus 8. |
| Depth | 8.46 mm | 8 mm | OnePlus 8 is narrower than Xiaomi MI Mix 3 5G. |
| Weight | 225 g | 180 g | OnePlus 8 is lighter than Xiaomi MI Mix 3 5G. |
| Body Colour | Sapphire blue | Onyx black | Black | Onyx black | Glacial green | |
| Waterproof (Water-resistant) | - | - | |
| SAR Value | 1.577 W/kg (body), 1.557 W/kg (head) | 0.86 W/kg | |
| Connector Type | USB Type-C - 24 pin USB-C | USB Type-C - 24 pin USB-C | |
| SIM Card Type (Size) | - | Nano SIM | |
| SIM Card Qty | Single-SIM | Dual-SIM |
| DISPLAY | Xiaomi MI Mix 3 5G | OnePlus 8 |
|---|
| Display Type | OLED display | OLED display | |
|---|---|---|---|
| Display Technology | AMOLED | Fluid Amoled | |
| Screen Size (Display Size) | 6.39" | 6.55" | OnePlus 8 has larger screen size than Xiaomi MI Mix 3 5G. |
| Screen Resolution (Display Resolution) | 2340 x 1080 pixels | 2400 x 1080 pixels | OnePlus 8 has better screen resolution than Xiaomi MI Mix 3 5G. |
| Display Format | Full HD+ | QHD+ | |
| Pixel Density | 403 ppi | 402 ppi | Xiaomi MI Mix 3 5G has better pixel density than OnePlus 8. |
| Aspect Ratio | 19.5:9 | 20:9 | |
| Max Brightness | 600 cd/m² | - | |
| 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 | - | |
| Display Features | Always-on display, Reading mode, Colour temperature adjustment, night mode | Reading mode, night mode, Wide colour display (P3), 90 Hz Fluid Display | |
| Display Protection (Screen Protector) | - | Corning Gorilla Glass 3D (scratch resistant glass) |
| PROCESSOR | Xiaomi MI Mix 3 5G | OnePlus 8 |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 855 | Qualcomm Snapdragon 865 | |
|---|---|---|---|
| Clock Speed | 2.84 GHz | 2.84 GHz | Both phones have the same clock speed. |
| Processor Core Qty | - | 8-core | |
| 64-bit Architecture | Yes | Yes | Both phones have 64-bit architecture. |
| Graphics System (GPU) | Qualcomm ADRENO 640 | Qualcomm ADRENO 650 |
| MEMORY | Xiaomi MI Mix 3 5G | OnePlus 8 |
|---|
| RAM | LPDDR4X SDRAM - 6 GB | LPDDR4X SDRAM - 8 GB | OnePlus 8 has more RAM than Xiaomi MI Mix 3 5G. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 128 GB | 128 GB | Both phones have the same internal memory capacity. |
| User Memory | - | 100 GB | |
| Memory Interface | UFS 2.1 | UFS 3.0 |
| CAMERA | Xiaomi MI Mix 3 5G | OnePlus 8 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 2 | 3 | |
|---|---|---|---|
| Sensor Resolution | 12 Megapixel | 48 Megapixel | OnePlus 8 has better camera resolution than Xiaomi MI Mix 3 5G. |
| Sensor Size | - | 1/1.4" | |
| Sensor Name | Sony Exmor RS IMX363 sensor | Sony Exmor RS IMX586 sensor | |
| Lens Type | Wide-angle lens | - | |
| Lens Aperture | F/1.8 | F/1.75 | OnePlus 8 has better lens aperture than Xiaomi MI Mix 3 5G. |
| Lens Construction | - | 6-element | |
| Pixel Size | 1.4 μm | 0.8 μm | Xiaomi MI Mix 3 5G has larger camera pixel size than OnePlus 8. |
| Optical Image Stabiliser (OIS) | 4-axis OIS (Optical Image Stabilisation) | Optical Image Stabiliser (OIS) | Both phones have optical image stabilization. |
| Focus Adjustment | Automatic | Automatic | |
| Laser Auto Focus | - | Yes | |
| Special Effects | HDR | Portrait, HDR, Studio | |
| Camera Modes | Panorama, Nightscape capture mode, Personalized AI Beautify | Panorama, Time-lapse mode, Pro mode, night mode, portrait mode, Cine Video Mode, Dog, Cat, Nightscape capture mode, Portrait, Ultra shot | |
| Face Recognition (Face ID) | Face recognition | Face detection | Both phones have face detection. |
| Light Source | Flash | Dual LED flash | |
| Video Resolutions | 1920 x 1080 (1080p) at 30 fps, 1920 x 1080 (1080p) at 60 fps, 1280 x 720 (720p) at 30 fps, Slo-mo video 1920 x 1080 (1080p) at 120 fps, Slo-mo video 1280 x 720 (720p) at 240 fps, 3840 x 2160 (4K) at 30 fps, Slo-mo video 1280 x 720 (720p) at 120 fps, 3840 x 2160 (4K) at 60 fps, Super slow motion video 1280 x 720 (720p) at 960 fps, Slo-mo video 1920 x 1080 (1080p) at 240 fps, Super slow motion video 1920 x 1080 (1080p) at 960 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 | |
| Camera Features (Functions) | AI scene and object detection, Dual Pixel Autofocus technology, AI Dual camera, 4-in-1 Super Pixel, AI scene detection, AI dynamic bokeh, AI studio lighting, AI Super Resolution, low-light enhancement technology, AI special effects | Noise reduction, GIF animation function, Phase Detect Auto-Focus (PDAF), Electronic Image Stabiliser (EIS), Continuous Auto Focus (CAF), RAW image capture, AI scene detection, UltraShot engine |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | 12 Megapixel | 2 Megapixel | Xiaomi MI Mix 3 5G has better second camera resolution than OnePlus 8. |
|---|---|---|---|
| Sensor Name (2nd Camera) | Samsung S5K3M3+ | - | |
| Lens Aperture (2nd Camera) | - | F/2.4 | |
| Pixel Size (2nd Camera) | 1 μm | 1.75 μm | OnePlus 8 has larger second camera pixel size than Xiaomi MI Mix 3 5G. |
| THIRD CAMERA |
|---|
| Sensor Resolution (3rd Camera) | - | 16 Megapixel | |
|---|---|---|---|
| Lens Type (3rd Camera) | - | Ultra wide-angle lens | |
| Lens Aperture (3rd Camera) | - | F/2.2 | |
| Field of View (3rd Camera) | - | 116 degree(s) |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 2 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 24 Megapixel | 16 Megapixel | Xiaomi MI Mix 3 5G has better front camera resolution than OnePlus 8. |
| Sensor Name (Front) | Sony Exmor RS IMX576 sensor | Sony Exmor RX IMX471 sensor | |
| Lens Aperture (Front) | - | F/2.45 | |
| Pixel Size (Front) | 1.8 μm | 1 μm | Xiaomi MI Mix 3 5G has larger front camera pixel size than OnePlus 8. |
| Focus Adjustment | - | Focus free | |
| Special Effects (Front) | Magic mirror | HDR, face retouch | |
| HDR Mode (Front) | Auto HDR mode | - | |
| Camera Modes (Front) | Bokeh Mode, AI Beautify, AI makeup | Time-lapse mode | |
| Face Recognition (Face ID) | Face recognition | - | Xiaomi MI Mix 3 5G has face detection. |
| Light Source (Front) | - | Display flash | |
| Video Resolutions (Front) | - | 1920 x 1080 (1080p) at 30 fps | |
| Camera Features (Front) | AI portrait mode, 4-in-1 Super Pixel technology, Video Beautify, AI scene detection, AI dynamic bokeh, AI studio lighting, AI real-time video background blurring, AI eye light | Electronic Image Stabiliser (EIS) |
| SECOND FRONT CAMERA |
|---|
| Sensor Resolution (2nd Front) | 2 Megapixel | - | |
|---|---|---|---|
| Sensor Name (2nd Front) | OC0A10 | - | |
| Pixel Size (2nd Front) | 1.75 μm | - |
| BATTERY AND CHARGING | Xiaomi MI Mix 3 5G | OnePlus 8 |
|---|
| Battery Capacity (Battery Size) | 3800 mAh | 4300 mAh | OnePlus 8 has larger battery capacity than Xiaomi MI Mix 3 5G. |
|---|---|---|---|
| Fast Charging Technology | Qualcomm Quick Charge 4.0+ | Warp Charge 30 technology, Warp Charge 30T technology | Both phones have fast charging technology. |
| Talk Time | - | 1740 minutes | |
| Run Time Details | - | Talk: up to 1740 min Standby: up to 391 hrs |
|
| Battery Technology | - | Lithium Ion |
| CELLULAR | Xiaomi MI Mix 3 5G | OnePlus 8 |
|---|
| Technology | CDMA2000 1X / GSM / WCDMA (UMTS) / TD-SCDMA | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 5G | 5G | Both phones have the same mobile network generation. |
| Operating System | - | OxygenOS (based on Android 10) | |
| Navigation | GPS, GLONASS, BeiDou, Galileo, QZSS | GPS, A-GPS, GLONASS, BeiDou, Galileo |
| COMMUNICATIONS | Xiaomi MI Mix 3 5G | OnePlus 8 |
|---|
| Data Transmission | GPRS, EDGE, EV-DO, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE, 5G NR FR1 | GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE, LTE Advanced, FDD-LTE, TDD-LTE, 5G NR FR1 | |
|---|---|---|---|
| 2G Band | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM, 800 CDMA2000 1X | 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 20, Band 28, 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 34, Band 38, Band 39, Band 40, Band 41, Band 42, Band 46, Band 66 | |
| 4G LTE Frequency | FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 800 DD, FDD 700 APT, 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 2000, TDD 2600, TDD 1900, TDD 2300, TDD 2500, TDD 3500, TDD 5150, FDD 1700 - 2110 AWS-3 | |
| 5G NR Band | N78 | N1, n3, n7, n28, n78 | |
| 5G NR Frequency | TDD TD 3500 | FDD 2100, FDD 1800, FDD 2600, FDD 700APT, TDD TD 3500 | |
| Wireless Interface | IEEE 802.11a/b/g/n/ac | IEEE 802.11a/b/g/n/ac, IEEE 802.11a/b/g/n/ac/ax | |
| Bluetooth | Bluetooth 5.0 | Bluetooth 5.1 | |
| NFC | Yes | Yes | Both phones have an NFC reader for mobile payments. |
| Modem | - | Snapdragon X55 5G | |
| Messaging Services | SMS, MMS | SMS, MMS |
| MEDIA | Xiaomi MI Mix 3 5G | OnePlus 8 |
|---|
| 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, apt-X, LDAC, IMY, EAC3, MID, AMR-WB, AMR-NB, SBC, apt-X HD, EAC3-JOC, AC-4 | |
|---|---|---|---|
| Supported Digital Video Standards | MKV, VC-1, 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 Mix 3 5G | OnePlus 8 |
|---|
| 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 | |
|---|---|---|---|
| Sensors | Accelerometer, ambient light sensor, digital compass, gyro sensor, vibration sensor, ultrasonic distance sensor | Accelerometer, ambient light sensor, proximity sensor, digital compass, gyro sensor | |
| Security Devices | Face recognition, fingerprint reader | Fingerprint reader (under display), face recognition | |
| Additional Phone Features | MIMO technology, MU-MIMO technology | Face Unlock, Noise Cancellation Technology, MIMO technology, Alert Slider |
| OTHERS | Xiaomi MI Mix 3 5G | OnePlus 8 |
|---|
| Included Accessories | Protective cover, power adapter, SIM card removal tool, USB-C cable, USB-C to 3.5 jack audio cable | SIM card removal tool, sticker, screen protector, USB-C cable, protective case, Warp Charge 30 power adapter |
|---|
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