In depth comparison and review of OPPO Find X and Xiaomi MI A3. 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 | OPPO Find X | Xiaomi MI A3 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | CPH1875 | - | |
| Form Factor | Touch | Touch | |
| Height | 156.7 mm | 153.48 mm | OPPO Find X has greater height than Xiaomi MI A3. |
| Width | 74.2 mm | 71.85 mm | OPPO Find X has greater width than Xiaomi MI A3. |
| Depth | 9.6 mm | 8.475 mm | Xiaomi MI A3 is narrower than OPPO Find X. |
| Weight | 186 g | 173.8 g | Xiaomi MI A3 is lighter than OPPO Find X. |
| Body Colour | Bordeaux red | Glacier blue | Kind of grey | |
| Body Material | - | Corning Gorilla Glass 5 | |
| Waterproof (Water-resistant) | - | - | |
| SAR Value | 1.658 W/kg (body), 1.57 W/kg (head), 3.99 W/kg (limb) | 2.34 W/kg (limb), 1.097 W/kg (body), 0.301 W/kg (head) | |
| Connector Type | USB Type-C - 24 pin USB-C | USB Type-C - 24 pin USB-C Headset jack - mini-phone 3.5mm |
|
| SIM Card Type (Size) | Nano SIM | Nano SIM | |
| SIM Card Qty | Dual-SIM | Dual-SIM |
| DISPLAY | OPPO Find X | Xiaomi MI A3 |
|---|
| Display Type | OLED display | OLED display | |
|---|---|---|---|
| Display Technology | AMOLED | AMOLED | |
| Screen Size (Display Size) | 6.4" | 6.088" | OPPO Find X has larger screen size than Xiaomi MI A3. |
| Screen Resolution (Display Resolution) | 2340 x 1080 pixels | 1560 x 720 pixels | OPPO Find X has better screen resolution than Xiaomi MI A3. |
| Display Format | Full HD+ | HD+ | |
| Pixel Density | 430 ppi | - | |
| Aspect Ratio | 19.5:9 | 19.5:9 | |
| Max Brightness | 430 cd/m² | - | |
| Colour Depth | 16.7 million colours | - | |
| Contrast Ratio | - | 60000:1 | |
| Display Features | Panoramic Arc Screen | 2.5D Glass, Dot Drop display | |
| Display Protection (Screen Protector) | - | Corning Gorilla Glass 5 (scratch resistant glass) |
| PROCESSOR | OPPO Find X | Xiaomi MI A3 |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 845 | Qualcomm Snapdragon 665 | |
|---|---|---|---|
| Clock Speed | - | 2 GHz | |
| Processor Core Qty | 8-core | 8-core | Both phones have the same number of phone cores. |
| 64-bit Architecture | Yes | - | OPPO Find X has 64-bit architecture. |
| Graphics System (GPU) | Qualcomm ADRENO 630 | Qualcomm ADRENO 610 |
| MEMORY | OPPO Find X | Xiaomi MI A3 |
|---|
| RAM | 8 GB | LPDDR4X SDRAM - 4 GB | OPPO Find X has more RAM than Xiaomi MI A3. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 256 GB | 64 GB | OPPO Find X has more internal memory than Xiaomi MI A3. |
| Supported Flash Memory Cards (Expandable Memory) | - | Up to 256 GB |
| CAMERA | OPPO Find X | Xiaomi MI A3 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 2 | 3 | |
|---|---|---|---|
| Sensor Resolution | 20 Megapixel | 48 Megapixel | Xiaomi MI A3 has better camera resolution than OPPO Find X. |
| Sensor Size | - | 1/2" | |
| Lens Aperture | F/2.0 | F/1.79 | Xiaomi MI A3 has better lens aperture than OPPO Find X. |
| Lens Construction | - | 6-element | |
| Pixel Size | - | 1.6 μm | |
| Optical Image Stabiliser (OIS) | Optical Image Stabiliser (OIS) | - | OPPO Find X has optical stabilisation. |
| Focus Adjustment | Automatic | Automatic | |
| Camera Modes | - | AI portrait mode | |
| Light Source | LED flash | 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 | |
| Camera Features (Functions) | AI Dual camera, AI Beautify, AI scene recognition | Phase Detect Auto-Focus (PDAF), Electronic Image Stabiliser (EIS), 4-in-1 Super Pixel, AI scene detection, AI Triple camera, 27 different scenes |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | 16 Megapixel | 8 Megapixel | OPPO Find X has better second camera resolution than Xiaomi MI A3. |
|---|---|---|---|
| Lens Type (2nd Camera) | - | Ultra wide-angle lens | |
| Lens Aperture (2nd Camera) | F/2.0 | F/2.2 | OPPO Find X has better second camera lens aperture than OPPO Find X. |
| Field of View (2nd Camera) | - | 118 degree(s) |
| THIRD CAMERA |
|---|
| Sensor Resolution (3rd Camera) | - | 2 Megapixel | |
|---|---|---|---|
| Camera Functions (3rd Camera) | - | Depth camera |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 3 | 1 | |
|---|---|---|---|
| Front Camera Design | Pop-up | - | |
| Sensor Resolution (Front) | 25 Megapixel | 32 Megapixel | Xiaomi MI A3 has better front camera resolution than OPPO Find X. |
| Lens Aperture (Front) | F/2.0 | F/2.0 | Both phones have the same front camera lens aperture. |
| Lens Element Qty (Front) | - | 5-element | |
| Field of View (Front) | - | 79 degree(s) | |
| Pixel Size (Front) | - | 1.6 μm | |
| Focus Adjustment | - | Focus free | |
| Camera Modes (Front) | - | Selfie panorama, AI portrait mode, AI Beautify | |
| Video Resolutions (Front) | - | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps | |
| Camera Features (Front) | - | 4-in-1 Super Pixel technology, AI scene detection, 12 different scenes, AI Selfie, Palm shutter, AI face unlock |
| SECOND FRONT CAMERA |
|---|
| Camera Features (2nd Front) | Flood Illuminator, Dot Projector | - |
|---|
| THIRD FRONT CAMERA |
|---|
| Camera Functions (3rd Front) | Infrared Camera | - |
|---|
| BATTERY AND CHARGING | OPPO Find X | Xiaomi MI A3 |
|---|
| Battery Capacity (Battery Size) | 3400 mAh | 4030 mAh | Xiaomi MI A3 has larger battery capacity than OPPO Find X. |
|---|---|---|---|
| Fast Charging Technology | SuperVOOC Flash Charge technology | Qualcomm Quick Charge 3.0 | Both phones have fast charging technology. |
| CELLULAR | OPPO Find X | Xiaomi MI A3 |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
| Operating System | ColorOS 5.1 (based on Android 8.1) | - | |
| Intelligent Assistant | - | Google Assistant | |
| Navigation | GPS, A-GPS | GPS, A-GPS, GLONASS, BeiDou |
| COMMUNICATIONS | OPPO Find X | Xiaomi MI A3 |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, VoLTE, FDD-LTE, TDD-LTE | GPRS, EDGE, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE | |
|---|---|---|---|
| 2G Band | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | |
| 3G UMTS Band | Band 1, Band 2, Band 4, Band 5, Band 6, Band 8, Band 19 | Band 1, Band 2, Band 4, Band 5, Band 8 | |
| 3G UMTS Frequency | 2100, 1900, 1700, 850, 800, 900, 800 | 2100, 1900, 1700, 850, 900 | |
| 4G LTE Band | 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 29, Band 32, Band 34, Band 38, Band 39, Band 40, Band 41, Band 66 | Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 20, Band 28, Band 38, Band 40 | |
| 4G LTE Frequency | 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 700d, FDD 1500 L, TDD 2000, TDD 2600, TDD 1900, TDD 2300, TDD 2500, FDD 1700 - 2110 AWS-3 | FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 800 DD, FDD 700 APT, TDD 2600, TDD 2300 | |
| Wireless Interface | IEEE 802.11a/b/g/n/ac | Infrared (IrDA), IEEE 802.11a/b/g/n/ac | |
| Bluetooth | Bluetooth 5.0 | Bluetooth 5.0 | |
| Messaging Services | SMS, MMS | SMS, MMS |
| MEDIA | OPPO Find X | Xiaomi MI A3 |
|---|
| Supported Digital Audio Standards | - | WAV, AAC, PCM, MP3, FLAC, AAC +, eAAC+, AMR-WB, AMR-NB | |
|---|---|---|---|
| Supported Digital Video Standards | - | MKV, XviD, H.264, M4V, MPEG4-ASP, MPEG-4 SP, MP4 |
| FEATURES | OPPO Find X | Xiaomi MI A3 |
|---|
| 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, proximity sensor, digital compass | Accelerometer, ambient light sensor, proximity sensor, digital compass, gyro sensor, vibration sensor | |
| Security Devices | Face recognition | Fingerprint reader (under display) | |
| Security Technology | Laser 3D face recognition | - | |
| Additional Phone Features | 3D Structured Light technology | AI face unlock |
| OTHERS | OPPO Find X | Xiaomi MI A3 |
|---|
| Included Accessories | Headset, power adapter, SIM card removal tool, pre-installed screen protection film, USB-C cable, USB-C to 3.5 jack audio cable, protective case | Power adapter, SIM card removal tool, USB-C cable, soft case |
|---|
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