In depth comparison and review of Xiaomi Redmi 7A and OPPO A9 2020. 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 Redmi 7A | OPPO A9 2020 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | - | CPH1941 | |
| Form Factor | Touch | Touch | |
| Height | 146.3 mm | 163.6 mm | OPPO A9 2020 has greater height than Xiaomi Redmi 7A. |
| Width | 70.41 mm | 75.6 mm | OPPO A9 2020 has greater width than Xiaomi Redmi 7A. |
| Depth | 9.55 mm | 9.1 mm | OPPO A9 2020 is narrower than Xiaomi Redmi 7A. |
| Weight | 165 g | 195 g | Xiaomi Redmi 7A is lighter than Xiaomi Redmi 7A. |
| Body Colour | Matte black | Marine green | Space purple | |
| Body Material | - | 3D glass | |
| Protection | Splashproof | - | |
| Waterproof (Water-resistant) | - | - | |
| SAR Value | 1.166 W/kg (body), 0.557 W/kg (head), 2.88 W/kg (limb) | 0.976 W/kg (body), 0.847 W/kg (head), 2.118 W/kg (limb) | |
| Integrated Components | FM radio | - | |
| Connector Type | Micro-USB Headset jack - mini-phone 3.5mm |
USB Type-C - 24 pin USB-C Handset jack - mini-phone 3.5mm |
|
| SIM Card Type (Size) | Nano SIM | Nano SIM | |
| SIM Card Qty | Dual-SIM | Dual-SIM |
| DISPLAY | Xiaomi Redmi 7A | OPPO A9 2020 |
|---|
| Display Type | LCD display | LCD display | |
|---|---|---|---|
| Display Technology | - | TFT | |
| Screen Size (Display Size) | 5.45" | 6.5" | OPPO A9 2020 has larger screen size than Xiaomi Redmi 7A. |
| Screen Resolution (Display Resolution) | 1440 x 720 pixels | 1600 x 720 pixels | OPPO A9 2020 has better screen resolution than Xiaomi Redmi 7A. |
| Display Format | HD+ | - | |
| Pixel Density | 295 ppi | 269 ppi | Xiaomi Redmi 7A has better pixel density than OPPO A9 2020. |
| Aspect Ratio | 18:9 | - | |
| Max Brightness | - | 480 cd/m² | |
| Colour Depth | - | 16.7 million colours | |
| Contrast Ratio | 1000:1 | 1500:1 | OPPO A9 2020 has better display contrast ratio than Xiaomi Redmi 7A. |
| Display Enhancement Technology | Sunlight mode | Blue light filter | |
| Display Features | Reading mode, Colour temperature adjustment, night mode | In-Cell Display Technology, Sunlight screen |
| PROCESSOR | Xiaomi Redmi 7A | OPPO A9 2020 |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 439 | Qualcomm Snapdragon 665 | |
|---|---|---|---|
| Clock Speed | 2 GHz | - | |
| Processor Core Qty | 8-core | - | |
| 64-bit Architecture | Yes | - | Xiaomi Redmi 7A has 64-bit architecture. |
| Graphics System (GPU) | Qualcomm ADRENO 505 | Qualcomm ADRENO 610 |
| MEMORY | Xiaomi Redmi 7A | OPPO A9 2020 |
|---|
| RAM | 2 GB | LPDDR4X SDRAM - 4 GB | OPPO A9 2020 has more RAM than Xiaomi Redmi 7A. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 16 GB | 128 GB | OPPO A9 2020 has more internal memory than Xiaomi Redmi 7A. |
| Memory Interface | - | UFS 2.1 | |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 256 GB | microSDHC, microSDXC - up to 256 GB |
| CAMERA | Xiaomi Redmi 7A | OPPO A9 2020 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 1 | 4 | |
|---|---|---|---|
| Sensor Resolution | 12 Megapixel | 48 Megapixel | OPPO A9 2020 has better camera resolution than Xiaomi Redmi 7A. |
| Sensor Size | - | 1/2.25" | |
| Sensor Type | - | CMOS | |
| Lens Aperture | F/2.2 | F/1.8 | OPPO A9 2020 has better lens aperture than Xiaomi Redmi 7A. |
| Pixel Size | 1.25 μm | 0.8 μm | Xiaomi Redmi 7A has larger camera pixel size than OPPO A9 2020. |
| Focus Adjustment | Automatic | Automatic | |
| Special Effects | HDR | - | |
| HDR Mode | Auto HDR mode | - | |
| Camera Modes | AI portrait mode, AI Beautify 4.0 | Panorama, Time-lapse mode, Slow motion mode, Beauty mode, Expert Mode, Portrait, Night, Ultra Night Mode 2.0 | |
| Face Recognition (Face ID) | Face recognition | - | Xiaomi Redmi 7A has face detection. |
| Light Source | LED flash | LED flash | |
| Video Resolutions | 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, 3840 x 2160 (4K) at 30 fps | |
| Camera Features (Functions) | Phase Detect Auto-Focus (PDAF) | Electronic Image Stabiliser (EIS) |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | - | 8 Megapixel | |
|---|---|---|---|
| Sensor Size (2nd Camera) | - | 1/4.0" | |
| Lens Type (2nd Camera) | - | Ultra wide-angle lens | |
| Lens Aperture (2nd Camera) | - | F/2.25 | |
| Field of View (2nd Camera) | - | 119 degree(s) | |
| Pixel Size (2nd Camera) | - | 1.12 μm |
| THIRD CAMERA |
|---|
| Sensor Resolution (3rd Camera) | - | 2 Megapixel | |
|---|---|---|---|
| Sensor Size (3rd Camera) | - | 1/5" | |
| Lens Aperture (3rd Camera) | - | F/2.4 | |
| Pixel Size (3rd Camera) | - | 1.75 μm |
| 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) | 5 Megapixel | 16 Megapixel | OPPO A9 2020 has better front camera resolution than Xiaomi Redmi 7A. |
| Sensor Size (Front) | - | 1/3.1" | |
| Lens Aperture (Front) | - | F/2.0 | |
| Pixel Size (Front) | - | 1 μm | |
| Special Effects (Front) | HDR | - | |
| Camera Modes (Front) | AI portrait mode, AI Beautify 4.0 | AI Beauty | |
| Face Recognition (Face ID) | Face recognition | - | Xiaomi Redmi 7A has face detection. |
| Light Source (Front) | Display flash | - | |
| Video Resolutions (Front) | - | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps | |
| Camera Features (Front) | Selfie countdown | - |
| BATTERY AND CHARGING | Xiaomi Redmi 7A | OPPO A9 2020 |
|---|
| Battery Capacity (Battery Size) | 4000 mAh | 5000 mAh | OPPO A9 2020 has larger battery capacity than Xiaomi Redmi 7A. |
|---|---|---|---|
| Standby Time | - | 450 hours | |
| Talk Time | - | 2700 minutes | |
| Run Time Details | - | Standby: up to 450 hrs Talk: up to 2700 min |
| CELLULAR | Xiaomi Redmi 7A | OPPO A9 2020 |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
| Operating System | Android 9.0 Pie | ColorOS 6.0.1 (based on Android 9) | |
| User Interface | MIUI 9 | - | |
| Navigation | GPS, A-GPS, GLONASS, BeiDou, Galileo | GPS, A-GPS, GLONASS, BeiDou, Galileo |
| COMMUNICATIONS | Xiaomi Redmi 7A | OPPO A9 2020 |
|---|
| 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, 1900 GSM, 2100 GSM | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | |
| 3G UMTS Band | Band 1, Band 2, Band 5, Band 8 | Band 1, Band 2, Band 4, Band 5, Band 6, Band 8, Band 19 | |
| 3G UMTS Frequency | 2100, 1900, 850, 900 | 2100, 1900, 1700, 850, 800, 900, 800 | |
| 4G LTE Band | Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 20, Band 38, Band 40 | 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 | |
| 4G LTE Frequency | FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 800 DD, TDD 2600, TDD 2300 | 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 | |
| Wireless Interface | IEEE 802.11b/g/n | IEEE 802.11a/b/g/n/ac | |
| Bluetooth | Bluetooth 4.2 | Bluetooth 5.0 | |
| NFC | - | Yes | OPPO A9 2020 has NFC reader for mobile payments. |
| Messaging Services | SMS, MMS | SMS, MMS |
| MEDIA | Xiaomi Redmi 7A | OPPO A9 2020 |
|---|
| Supported Digital Audio Standards | AAC, PCM, AMR, MP3, FLAC, AAC +, MP4, AMR-WB, AMR-NB, WAVE | - | |
|---|---|---|---|
| Supported Digital Video Standards | FLV, H.263, H.264 AVC Main Profile (MP), H.264 AVC Baseline Profile(BP) | - | |
| Sound Enhancements | - | Dolby Atmos sound technology, Hi-Res audio |
| FEATURES | Xiaomi Redmi 7A | OPPO A9 2020 |
|---|
| 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, gyro sensor, geomagnetic sensor | |
| Security Devices | Face recognition | Face recognition | |
| Security Technology | A.I. face recognition | - | |
| Additional Phone Features | AI face unlock | Multitasking, Game Boost 2.0 |
| OTHERS | Xiaomi Redmi 7A | OPPO A9 2020 |
|---|
| Included Accessories | USB cable, power adapter, SIM card removal tool | Headphones, power adapter, SIM card removal tool, cover, USB-C cable, screen protector (pre-applied) | |
|---|---|---|---|
| Compliant Standards | TÜV Rheinland Certified Eye-Care | - |
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