In depth comparison and review of OPPO A9 2020 and Xiaomi Redmi Note 12. 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 A9 2020 | Xiaomi Redmi Note 12 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | CPH1941 | - | |
| Form Factor | Touch | Touch | |
| Height | 163.6 mm | 165.66 mm | Xiaomi Redmi Note 12 has greater height than OPPO A9 2020. |
| Width | 75.6 mm | 75.96 mm | Xiaomi Redmi Note 12 has greater width than OPPO A9 2020. |
| Depth | 9.1 mm | 7.85 mm | Xiaomi Redmi Note 12 is narrower than OPPO A9 2020. |
| Weight | 195 g | 183.5 g | Xiaomi Redmi Note 12 is lighter than OPPO A9 2020. |
| Body Colour | Marine green | Space purple | Ice blue | Onyx grey | Mint green | |
| Body Material | 3D glass | - | |
| Protection | - | Dustproof, splashproof | |
| Waterproof (Water-resistant) | - | - | Xiaomi Redmi Note 12 is waterproof. |
| IP rating | - | IP53 | |
| Repairability Index | - | 7.5 (out of 10) | |
| SAR Value | 0.976 W/kg (body), 0.847 W/kg (head), 2.118 W/kg (limb) | 2.55 W/kg (limb), 0.9 W/kg (head), 0.995 W/kg (body) | |
| Connector Type | USB Type-C - 24 pin USB-C Handset jack - mini-phone 3.5mm |
USB Type-C - 24 pin USB-C Headset jack - mini-phone 3.5mm |
|
| SIM Card Type (Size) | Nano SIM | - | |
| SIM Card Qty | Dual-SIM | Dual-SIM |
| DISPLAY | OPPO A9 2020 | Xiaomi Redmi Note 12 |
|---|
| Display Type | LCD display | OLED display | |
|---|---|---|---|
| Display Technology | TFT | AMOLED | |
| Screen Size (Display Size) | 6.5" | 6.67" | Xiaomi Redmi Note 12 has larger screen size than OPPO A9 2020. |
| Screen Resolution (Display Resolution) | 1600 x 720 pixels | 2400 x 1080 pixels | Xiaomi Redmi Note 12 has better screen resolution than OPPO A9 2020. |
| Display Format | - | Full HD+ | |
| Pixel Density | 269 ppi | 395 ppi | Xiaomi Redmi Note 12 has better pixel density than OPPO A9 2020. |
| Max Brightness | 480 cd/m² | 1200 cd/m² | Xiaomi Redmi Note 12 has better display brightness than OPPO A9 2020. |
| Colour Depth | 16.7 million colours | - | |
| Contrast Ratio | 1500:1 | 4500000:1 | Xiaomi Redmi Note 12 has better display contrast ratio than OPPO A9 2020. |
| Display Enhancement Technology | Blue light filter | - | |
| Display Refresh Rate | - | 120 Hz | |
| Touch Sampling Rate | - | 240 Hz | |
| Display Features | In-Cell Display Technology, Sunlight screen | Sunlight Display, Reading mode, DCI-P3 Wide colour gamut, DotDisplay, E2 Pro |
| PROCESSOR | OPPO A9 2020 | Xiaomi Redmi Note 12 |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 665 | Qualcomm Snapdragon 685 | |
|---|---|---|---|
| Clock Speed | - | 2.8 GHz | |
| Processor Core Qty | - | 8-core | |
| Graphics System (GPU) | Qualcomm ADRENO 610 | Qualcomm ADRENO 610 |
| MEMORY | OPPO A9 2020 | Xiaomi Redmi Note 12 |
|---|
| RAM | LPDDR4X SDRAM - 4 GB | LPDDR4X SDRAM - 4 GB | Both phones have the same RAM size. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 128 GB | 128 GB | Both phones have the same internal memory capacity. |
| Memory Interface | UFS 2.1 | UFS 2.2 | |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 256 GB | microSDHC, microSD, microSDXC - up to 1 TB |
| CAMERA | OPPO A9 2020 | Xiaomi Redmi Note 12 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 4 | 3 | |
|---|---|---|---|
| Sensor Resolution | 48 Megapixel | 50 Megapixel | Xiaomi Redmi Note 12 has better camera resolution than OPPO A9 2020. |
| Sensor Size | 1/2.25" | 1/2.76" | Xiaomi Redmi Note 12 has better camera sensor size than OPPO A9 2020. |
| Sensor Type | CMOS | - | |
| Sensor Name | - | Samsung ISOCELL JN1 | |
| Lens Aperture | F/1.8 | F/1.8 | Both phones have the same camera lens aperture. |
| Lens Construction | - | 5-element | |
| Pixel Size | 0.8 μm | 0.64 μm | OPPO A9 2020 has larger camera pixel size than Xiaomi Redmi Note 12. |
| Focus Adjustment | Automatic | Automatic | |
| Special Effects | - | Bokeh effect | |
| Camera Modes | Panorama, Time-lapse mode, Slow motion mode, Beauty mode, Expert Mode, Portrait, Night, Ultra Night Mode 2.0 | Portrait mode | |
| Light Source | LED flash | LED flash | |
| Video Resolutions | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps, 3840 x 2160 (4K) at 30 fps | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps | |
| Camera Features (Functions) | Electronic Image Stabiliser (EIS) | 4-in-1 to 1.28μm pixel |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | 8 Megapixel | 8 Megapixel | Both phones have the same second camera resolution. |
|---|---|---|---|
| Sensor Size (2nd Camera) | 1/4.0" | 1/4" | Both phones have the same sensor size of the second camera. |
| Sensor Name (2nd Camera) | - | Omnivision OV08D sensor | |
| Lens Type (2nd Camera) | Ultra wide-angle lens | Ultra wide-angle lens | |
| Lens Aperture (2nd Camera) | F/2.25 | F/2.2 | Xiaomi Redmi Note 12 has better second camera lens aperture than OPPO A9 2020. |
| Lens Element Qty (2nd Camera) | - | 5-element | |
| Field of View (2nd Camera) | 119 degree(s) | 120 degree(s) | Xiaomi Redmi Note 12 has larger second camera lens field of view than OPPO A9 2020. |
| Pixel Size (2nd Camera) | 1.12 μm | 1.12 μm | Both phones have the same second camera pixel size. |
| THIRD CAMERA |
|---|
| Sensor Resolution (3rd Camera) | 2 Megapixel | 2 Megapixel | Both phones have the same third camera resolution. |
|---|---|---|---|
| Sensor Size (3rd Camera) | 1/5" | - | |
| Lens Aperture (3rd Camera) | F/2.4 | F/2.4 | Both phones have the same lens aperture of the third camera. |
| Lens Element Qty (3rd Camera) | - | 3-element | |
| Pixel Size (3rd Camera) | 1.75 μm | - | |
| Camera Functions (3rd Camera) | - | Macro camera |
| FOURTH CAMERA |
|---|
| Sensor Resolution (4th Camera) | 2 Megapixel | - | |
|---|---|---|---|
| Sensor Size (4th Camera) | 1/5" | - | |
| Lens Aperture (4th Camera) | F/2.4 | - | |
| Pixel Size (4th Camera) | 1.75 μm | - |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 16 Megapixel | 13 Megapixel | OPPO A9 2020 has better front camera resolution than Xiaomi Redmi Note 12. |
| Sensor Size (Front) | 1/3.1" | 1/3.0" | OPPO A9 2020 has better front camera sensor size than Xiaomi Redmi Note 12. |
| Lens Aperture (Front) | F/2.0 | F/2.45 | OPPO A9 2020 has better front lens aperture than OPPO A9 2020. |
| Lens Element Qty (Front) | - | 5-element | |
| Pixel Size (Front) | 1 μm | - | |
| Camera Modes (Front) | AI Beauty | - | |
| Video Resolutions (Front) | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps |
| BATTERY AND CHARGING | OPPO A9 2020 | Xiaomi Redmi Note 12 |
|---|
| Battery Capacity (Battery Size) | 5000 mAh | 5000 mAh | Both phones have the same battery capacity. |
|---|---|---|---|
| Fast Charging Technology | - | Mi-FC fast charging technology | Xiaomi Redmi Note 12 has fast charging technology. |
| Standby Time | 450 hours | - | |
| Talk Time | 2700 minutes | 1860 minutes | OPPO A9 2020 has longer battery life when making calls than Xiaomi Redmi Note 12. |
| Run Time Details | Standby: up to 450 hrs Talk: up to 2700 min |
Talk: up to 1860 min Gaming: up to 9 hrs Playback (video): up to 21 hrs |
| CELLULAR | OPPO A9 2020 | Xiaomi Redmi Note 12 |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
| Operating System | ColorOS 6.0.1 (based on Android 9) | Android 13 | |
| User Interface | - | MIUI 14 | |
| Navigation | GPS, A-GPS, GLONASS, BeiDou, Galileo | GPS, GLONASS, Galileo |
| COMMUNICATIONS | OPPO A9 2020 | Xiaomi Redmi Note 12 |
|---|
| 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 6, Band 8, Band 19 | Band 1, Band 5, Band 8 | |
| 3G UMTS Frequency | 2100, 1900, 1700, 850, 800, 900, 800 | 2100, 850, 900 | |
| 4G LTE Band | Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 18, Band 19, Band 20, Band 26, Band 28, Band 38, Band 39, Band 40, Band 41 | 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 lower, FDD 800 upper, FDD 800 DD, FDD 850+, FDD 700 APT, TDD 2600, TDD 1900, TDD 2300, TDD 2500 | FDD 2100, FDD 1800+, FDD 850, FDD 2600, FDD 900, FDD 800 DD, FDD 700 APT, TDD 2600, TDD 2300, TDD 2500 | |
| Wireless Interface | IEEE 802.11a/b/g/n/ac | IEEE 802.11a/b/g/n/ac | |
| Bluetooth | Bluetooth 5.0 | Bluetooth 5.0 | |
| NFC | Yes | - | OPPO A9 2020 has NFC reader for mobile payments. |
| Messaging Services | SMS, MMS | - |
| MEDIA | OPPO A9 2020 | Xiaomi Redmi Note 12 |
|---|
| Sound Enhancements | Dolby Atmos sound technology, Hi-Res audio | - |
|---|
| FEATURES | OPPO A9 2020 | Xiaomi Redmi Note 12 |
|---|
| Phone Functions | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | - | |
|---|---|---|---|
| Sensors | Accelerometer, ambient light sensor, proximity sensor, gyro sensor, geomagnetic sensor | Accelerometer, ambient light sensor, proximity sensor, digital compass, gyroscope | |
| Security Devices | Face recognition | Face recognition, fingerprint reader (side) | |
| Security Technology | - | AI face unlock | |
| Additional Phone Features | Multitasking, Game Boost 2.0 | Graphite cooling, IR blaster, coin vibration motor |
| OTHERS | OPPO A9 2020 | Xiaomi Redmi Note 12 |
|---|
| Included Accessories | Headphones, power adapter, SIM card removal tool, cover, USB-C cable, screen protector (pre-applied) | 33W charger | |
|---|---|---|---|
| Compliant Standards | - | IP53, SGS Eye Care Display Certification, SGS Seamless Pro 120Hz Certification, Netflix HD Certification |
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