In depth comparison and review of OnePlus 3 and Xiaomi MI 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 | OnePlus 3 | Xiaomi MI 8 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Form Factor | Touch | Touch | |
| Height | 152.7 mm | 154.9 mm | Xiaomi MI 8 has greater height than OnePlus 3. |
| Width | 74.7 mm | 74.8 mm | Xiaomi MI 8 has greater width than OnePlus 3. |
| Depth | 7.4 mm | 7.6 mm | OnePlus 3 is narrower than OnePlus 3. |
| Weight | 158 g | 175 g | OnePlus 3 is lighter than OnePlus 3. |
| Body Colour | - | Black | Blue | |
| Body Material | Anodised aluminium | Glass, 7000 Series aluminium | |
| Waterproof (Water-resistant) | - | - | |
| SAR Value | 0.645 W/kg (body), 0.995 W/kg (head) | 1.662 W/kg (body), 0.701 W/kg (head) | |
| Connector Type | Headset jack - mini-phone 3.5mm 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 | OnePlus 3 | Xiaomi MI 8 |
|---|
| Display Type | OLED display | OLED display | |
|---|---|---|---|
| Display Technology | Optic AMOLED | AMOLED | |
| Screen Size (Display Size) | 5.5" | 6.21" | Xiaomi MI 8 has larger screen size than OnePlus 3. |
| Screen Resolution (Display Resolution) | 1920 x 1080 pixels | 2248 x 1080 pixels | Xiaomi MI 8 has better screen resolution than OnePlus 3. |
| Display Format | Full HD | Full HD+ | |
| Pixel Density | 401 ppi | 402 ppi | Xiaomi MI 8 has better pixel density than OnePlus 3. |
| Aspect Ratio | - | 18.7:9 | |
| Max Brightness | - | 600 cd/m² | |
| Colour Depth | 16.7 million colours | - | |
| Contrast Ratio | - | 60000:1 | |
| Display Enhancement Technology | - | Sunlight mode | |
| Display Features | - | Always-on display, Reading mode, Colour temperature adjustment, DCI-P3 Wide colour gamut | |
| Display Protection (Screen Protector) | Corning Gorilla Glass 4 (scratch resistant glass) | - |
| PROCESSOR | OnePlus 3 | Xiaomi MI 8 |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 820 | Qualcomm Snapdragon 845 | |
|---|---|---|---|
| Processor Number | MSM8996 | - | |
| Clock Speed | 2.15 GHz | 2.8 GHz | Xiaomi MI 8 has higher clock speed than OnePlus 3. |
| Processor Core Qty | Quad-core | 8-core | Xiaomi MI 8 has higher processor core quantity than OnePlus 3. |
| 64-bit Architecture | Yes | Yes | Both phones have 64-bit architecture. |
| Graphics System (GPU) | Qualcomm ADRENO 530 | Qualcomm ADRENO 630 |
| MEMORY | OnePlus 3 | Xiaomi MI 8 |
|---|
| RAM | 6 GB | LPDDR4X SDRAM - 6 GB | Both phones have the same RAM size. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 64 GB | 64 GB | Both phones have the same internal memory capacity. |
| CAMERA | OnePlus 3 | Xiaomi MI 8 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 1 | 2 | |
|---|---|---|---|
| Sensor Resolution | 16 Megapixel | 12 Megapixel | OnePlus 3 has better camera resolution than Xiaomi MI 8. |
| Sensor Name | Sony Exmor RS IMX298 sensor | Sony Exmor RS IMX363 sensor | |
| Lens Type | - | Wide-angle lens | |
| Lens Aperture | F/2.0 | F/1.8 | Xiaomi MI 8 has better lens aperture than OnePlus 3. |
| Optical Image Stabiliser (OIS) | Optical Image Stabiliser (OIS) | 4-axis OIS (Optical Image Stabilisation) | Both phones have optical image stabilization. |
| Focus Adjustment | Automatic | Automatic | |
| Special Effects | HDR | HDR | |
| HDR Mode | Auto HDR mode | - | |
| Camera Modes | Panorama | Burst mode, Panorama, portrait mode, AR Emoji, AI Beautify | |
| Face Recognition (Face ID) | Face detection | Face recognition | Both phones have face detection. |
| Light Source | LED light | LED flash | |
| Video Resolutions | 3840 x 2160 (4K) at 30 fps, Slo-mo video 1280 x 720 (720p) at 120 fps | 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 | |
| Camera Features (Functions) | Phase Detect Auto-Focus (PDAF), Electronic Image Stabiliser (EIS), geotagging | Dual Pixel Autofocus technology, AI Dual camera, AI scene detection, AI Beautify, AI dynamic bokeh, AI studio lighting, AI short video editing, AI high-res photos |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | - | 12 Megapixel | |
|---|---|---|---|
| Lens Type (2nd Camera) | - | Telephoto lens | |
| Lens Aperture (2nd Camera) | - | F/2.4 | |
| Camera Features (2nd Camera) | - | Portrait lens |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 2 | |
|---|---|---|---|
| Sensor Resolution (Front) | 8 Megapixel | 20 Megapixel | Xiaomi MI 8 has better front camera resolution than OnePlus 3. |
| Sensor Name (Front) | Sony Exmor R IMX179 sensor | - | |
| Lens Aperture (Front) | F/2.0 | - | |
| Focus Adjustment | Focus free | - | |
| Special Effects (Front) | - | Mirror | |
| Camera Modes (Front) | - | AR Emoji, AI portrait mode | |
| Face Recognition (Face ID) | - | Face recognition | Xiaomi MI 8 has face detection. |
| Video Resolutions (Front) | 1920 x 1080 (1080p) at 30 fps | - | |
| Camera Features (Front) | - | Self-timer, AI detection of 10 different scenes, 3D Beautify |
| SECOND FRONT CAMERA |
|---|
| Camera Features (2nd Front) | - | Flood Illuminator, Dot Projector |
|---|
| BATTERY AND CHARGING | OnePlus 3 | Xiaomi MI 8 |
|---|
| Battery Capacity (Battery Size) | 3000 mAh | 3400 mAh | Xiaomi MI 8 has larger battery capacity than OnePlus 3. |
|---|---|---|---|
| Fast Charging Technology | - | Qualcomm Quick Charge 4.0+ | Xiaomi MI 8 has fast charging technology. |
| Battery Technology | Lithium Ion | - |
| CELLULAR | OnePlus 3 | Xiaomi MI 8 |
|---|
| Technology | CDMA2000 1X / GSM / WCDMA (UMTS) / TD-SCDMA | CDMA2000 1X / GSM / WCDMA (UMTS) / TD-SCDMA | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
| Operating System | OxygenOS (based on Android 6.0.1) | Android 8.1 Oreo | |
| User Interface | - | MIUI 9.5 | |
| Payment Technology | - | Android Pay | |
| Navigation | GPS, A-GPS, GLONASS, BeiDou | GPS, GLONASS, BeiDou, Galileo, QZSS |
| COMMUNICATIONS | OnePlus 3 | Xiaomi MI 8 |
|---|
| Data Transmission | GPRS, EDGE, EV-DO, HSDPA, HSUPA, HSPA+, LTE, FDD-LTE | GPRS, EDGE, EV-DO, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE | |
|---|---|---|---|
| 2G Band | - | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM, 800 CDMA2000 1X, 1900 CDMA2000 1X | |
| 3G UMTS Band | - | Band 1, Band 2, Band 4, Band 5, Band 8 | |
| 3G UMTS Frequency | - | 2100, 1900, 1700, 850, 900 | |
| 4G LTE Band | Band 1, Band 2, Band 4, Band 5, Band 7, Band 12, Band 17, Band 30 | 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 | |
| 4G LTE Frequency | FDD 2100, FDD 1900 PCS, FDD 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 700a, FDD 700b, FDD 2300 WCS | 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 | |
| Wireless Interface | IEEE 802.11a/b/g/n/ac | IEEE 802.11a/b/g/n/ac | |
| Bluetooth | Bluetooth 4.2 | Bluetooth 5.0 | |
| Bluetooth Profiles | A2DP | - | |
| NFC | Yes | Yes | Both phones have an NFC reader for mobile payments. |
| Messaging Services | SMS, MMS | SMS, MMS |
| MEDIA | OnePlus 3 | Xiaomi MI 8 |
|---|
| Supported Digital Audio Standards | WAV, WMA, MP3, FLAC, eAAC+ | WAV, AAC, PCM, AMR, MP3, FLAC, AAC +, eAAC+, APE (Monkey's Audio), apt-X, AMR-WB, AMR-NB, apt-X HD | |
|---|---|---|---|
| Supported Digital Video Standards | XviD, MPEG-4, DivX, H.265 | MKV, XviD, MPEG-4, H.264, M4V, HEVC, H.265, ASP | |
| Sound Enhancements | Dirac sound technologies | - |
| FEATURES | OnePlus 3 | Xiaomi MI 8 |
|---|
| Phone Functions | Speakerphone, call timer, conference call, flight mode, vibrating alert | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | |
|---|---|---|---|
| Sensors | Accelerometer, proximity sensor, digital compass, gyro sensor | Accelerometer, ambient light sensor, proximity sensor, digital compass, barometer, gyro sensor, hall sensor, Time of Flight (ToF), infrared (IR) sensor | |
| Security Devices | Fingerprint reader | Face recognition, fingerprint reader | |
| Security Technology | - | IR face unlock | |
| Additional Phone Features | DLNA Certified, sharing media via DLNA | Face Unlock, MU-MIMO technology |
| OTHERS | OnePlus 3 | Xiaomi MI 8 |
|---|
| Included Accessories | Screen protection film, USB cable, power adapter, SIM card removal tool | Power adapter, SIM card removal tool, USB-C to 3.5 jack adapter, USB-C cable, Mi 8 Protective cover |
|---|
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