In depth comparison and review of Xiaomi MI A3 and OPPO A15. 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 A3 | OPPO A15 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | - | CPH2185 | |
| Form Factor | Touch | Touch | |
| Height | 153.48 mm | 164 mm | OPPO A15 has greater height than Xiaomi MI A3. |
| Width | 71.85 mm | 75.4 mm | OPPO A15 has greater width than Xiaomi MI A3. |
| Depth | 8.475 mm | 7.9 mm | OPPO A15 is narrower than Xiaomi MI A3. |
| Weight | 173.8 g | 175 g | Xiaomi MI A3 is lighter than Xiaomi MI A3. |
| Body Colour | Kind of grey | Dynamic black | |
| Body Material | Corning Gorilla Glass 5 | - | |
| Waterproof (Water-resistant) | - | - | |
| SAR Value | 2.34 W/kg (limb), 1.097 W/kg (body), 0.301 W/kg (head) | 1.16 W/kg (body), 2.77 W/kg (limb), 0.92 W/kg (head) | |
| Connector Type | USB Type-C - 24 pin USB-C Headset jack - mini-phone 3.5mm |
Micro-USB Handset jack - mini-phone 3.5mm |
|
| SIM Card Type (Size) | Nano SIM | Nano SIM | |
| SIM Card Qty | Dual-SIM | Dual-SIM |
| DISPLAY | Xiaomi MI A3 | OPPO A15 |
|---|
| Display Type | OLED display | LCD display | |
|---|---|---|---|
| Display Technology | AMOLED | LCD | |
| Screen Size (Display Size) | 6.088" | 6.52" | OPPO A15 has larger screen size than Xiaomi MI A3. |
| Screen Resolution (Display Resolution) | 1560 x 720 pixels | 1600 x 720 pixels | OPPO A15 has better screen resolution than Xiaomi MI A3. |
| Display Format | HD+ | HD+ | |
| Pixel Density | - | 269 ppi | |
| Aspect Ratio | 19.5:9 | - | |
| Max Brightness | - | 480 cd/m² | |
| Contrast Ratio | 60000:1 | 1500:1 | Xiaomi MI A3 has better display contrast ratio than OPPO A15. |
| Display Refresh Rate | - | 60 Hz | |
| Display Features | 2.5D Glass, Dot Drop display | Dark mode, Waterdrop Screen | |
| Display Protection (Screen Protector) | Corning Gorilla Glass 5 (scratch resistant glass) | - |
| PROCESSOR | Xiaomi MI A3 | OPPO A15 |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 665 | MediaTek Helio P35 | |
|---|---|---|---|
| Processor Number | - | MT6765 | |
| Clock Speed | 2 GHz | 2.3 GHz | OPPO A15 has higher clock speed than Xiaomi MI A3. |
| Processor Core Qty | 8-core | - | |
| Graphics System (GPU) | Qualcomm ADRENO 610 | IMG GE8320 |
| MEMORY | Xiaomi MI A3 | OPPO A15 |
|---|
| RAM | LPDDR4X SDRAM - 4 GB | LPDDR4X SDRAM - 3 GB | Xiaomi MI A3 has more RAM than OPPO A15. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 64 GB | 32 GB | Xiaomi MI A3 has more internal memory than OPPO A15. |
| Supported Flash Memory Cards (Expandable Memory) | Up to 256 GB | microSDHC, microSD, microSDXC - up to 256 GB |
| CAMERA | Xiaomi MI A3 | OPPO A15 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 3 | 3 | |
|---|---|---|---|
| Sensor Resolution | 48 Megapixel | 13 Megapixel | Xiaomi MI A3 has better camera resolution than OPPO A15. |
| Sensor Size | 1/2" | - | |
| Lens Aperture | F/1.79 | F/2.2 | Xiaomi MI A3 has better lens aperture than Xiaomi MI A3. |
| Lens Construction | 6-element | 5-element | |
| Pixel Size | 1.6 μm | - | |
| Focus Adjustment | Automatic | Automatic | |
| Special Effects | - | HDR, Portrait bokeh | |
| Camera Modes | AI portrait mode | Panorama, Time-lapse mode, Slow motion mode, Expert Mode, Portrait, Night | |
| Light Source | Flash | 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 | - | |
| Camera Features (Functions) | Phase Detect Auto-Focus (PDAF), Electronic Image Stabiliser (EIS), 4-in-1 Super Pixel, AI scene detection, AI Triple camera, 27 different scenes | AI Triple camera, AI Scene Enhancement |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | 8 Megapixel | 2 Megapixel | Xiaomi MI A3 has better second camera resolution than OPPO A15. |
|---|---|---|---|
| Lens Type (2nd Camera) | Ultra wide-angle lens | - | |
| Lens Aperture (2nd Camera) | F/2.2 | F/2.4 | Xiaomi MI A3 has better second camera lens aperture than Xiaomi MI A3. |
| Lens Element Qty (2nd Camera) | - | 3-element | |
| Field of View (2nd Camera) | 118 degree(s) | - | |
| Camera Functions (2nd Camera) | - | Macro camera | |
| Camera Features (2nd Camera) | - | 4cm macro photography |
| THIRD CAMERA |
|---|
| Sensor Resolution (3rd Camera) | 2 Megapixel | 2 Megapixel | Both phones have the same third camera resolution. |
|---|---|---|---|
| Lens Aperture (3rd Camera) | - | F/2.4 | |
| Lens Element Qty (3rd Camera) | - | 3-element | |
| Camera Functions (3rd Camera) | Depth camera | Depth camera |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 32 Megapixel | 5 Megapixel | Xiaomi MI A3 has better front camera resolution than OPPO A15. |
| Lens Aperture (Front) | F/2.0 | F/2.4 | Xiaomi MI A3 has better front lens aperture than Xiaomi MI A3. |
| Lens Element Qty (Front) | 5-element | 3-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 | AI beautification |
| BATTERY AND CHARGING | Xiaomi MI A3 | OPPO A15 |
|---|
| Battery Capacity (Battery Size) | 4030 mAh | 4230 mAh | OPPO A15 has larger battery capacity than Xiaomi MI A3. |
|---|---|---|---|
| Fast Charging Technology | Qualcomm Quick Charge 3.0 | - | Xiaomi MI A3 has fast charging technology. |
| CELLULAR | Xiaomi MI A3 | OPPO A15 |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
| Operating System | - | ColorOS 7.2 (based on Android 10) | |
| Intelligent Assistant | Google Assistant | - | |
| Navigation | GPS, A-GPS, GLONASS, BeiDou | GPS, A-GPS, GLONASS, BeiDou, Galileo |
| COMMUNICATIONS | Xiaomi MI A3 | OPPO A15 |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE | 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 8 | Band 1, Band 5, Band 8 | |
| 3G UMTS Frequency | 2100, 1900, 1700, 850, 900 | 2100, 850, 900 | |
| 4G LTE Band | Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 20, Band 28, Band 38, Band 40 | Band 1, Band 3, Band 5, Band 7, Band 8, Band 20, Band 28, Band 38, Band 40, Band 41 | |
| 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 2600, TDD 2300 | FDD 2100, FDD 1800+, FDD 850, FDD 2600, FDD 900, FDD 800 DD, FDD 700 APT, TDD 2600, TDD 2300, TDD 2500 | |
| Wireless Interface | Infrared (IrDA), IEEE 802.11a/b/g/n/ac | Wi-Fi | |
| Bluetooth | Bluetooth 5.0 | Bluetooth 5.0 | |
| Messaging Services | SMS, MMS | - |
| MEDIA | Xiaomi MI A3 | OPPO A15 |
|---|
| Supported Digital Audio Standards | WAV, AAC, PCM, MP3, FLAC, AAC +, eAAC+, AMR-WB, AMR-NB | AAC, apt-X, LDAC, SBC | |
|---|---|---|---|
| Supported Digital Video Standards | MKV, XviD, H.264, M4V, MPEG4-ASP, MPEG-4 SP, MP4 | - |
| FEATURES | Xiaomi MI A3 | OPPO A15 |
|---|
| 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, gyro sensor, vibration sensor | - | |
| Security Devices | Fingerprint reader (under display) | Face recognition, fingerprint reader | |
| Security Technology | - | AI face unlock | |
| Additional Phone Features | AI face unlock | HyperBoost 2.1 |
| OTHERS | Xiaomi MI A3 | OPPO A15 |
|---|
| Included Accessories | Power adapter, SIM card removal tool, USB-C cable, soft case | Protective cover, USB cable, power adapter, SIM card removal tool |
|---|
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