Detailed comparison and review of OPPO R9 and Xiaomi Redmi 7A. With our comprehensive overview, you can simply compare sizes, functions, but also other key features of both phones and easily decide which one is the right choice for you. Our goal is to help you identify the main differences between products and find the phone that best fits your needs and expectations.
DESIGN AND DIMENSIONS | OPPO R9 | Xiaomi Redmi 7A |
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Product Type | Smartphone | Smartphone | |
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Form Factor | Touch | Touch | |
Height | 151.8 mm | 146.3 mm | OPPO R9 has greater height than Xiaomi Redmi 7A. |
Width | 74.3 mm | 70.41 mm | OPPO R9 has greater width than Xiaomi Redmi 7A. |
Depth | 6.6 mm | 9.55 mm | OPPO R9 is narrower than OPPO R9. |
Weight | 145 g | 165 g | OPPO R9 is lighter than OPPO R9. |
Body Colour | Gold | Matte black | |
Protection | - | Splashproof | |
Waterproof (Water-resistant) | - | - | |
SAR Value | - | 1.166 W/kg (body), 0.557 W/kg (head), 2.88 W/kg (limb) | |
Integrated Components | - | FM radio | |
Connector Type | Micro-USB - 5 pin Micro-USB Type B Headset jack - mini-phone 3.5mm |
Micro-USB Headset jack - mini-phone 3.5mm |
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SIM Card Type (Size) | Nano SIM | Nano SIM | |
SIM Card Qty | Dual-SIM (SIM1 and SIM2/MicroSD slots) | Dual-SIM | |
SIM Card Configuration Details | Nano SIM + nano SIM/microSD | - |
DISPLAY | OPPO R9 | Xiaomi Redmi 7A |
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Display Type | - | LCD display | |
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Screen Size (Display Size) | 5.5" | 5.45" | OPPO R9 has larger screen size than Xiaomi Redmi 7A. |
Screen Resolution (Display Resolution) | 1920 x 1080 pixels | 1440 x 720 pixels | OPPO R9 has better screen resolution than Xiaomi Redmi 7A. |
Display Format | Full HD | HD+ | |
Pixel Density | 401 ppi | 295 ppi | OPPO R9 has better pixel density than Xiaomi Redmi 7A. |
Aspect Ratio | - | 18:9 | |
Colour Depth | 16.7 million colours | - | |
Contrast Ratio | - | 1000:1 | |
Display Enhancement Technology | - | Sunlight mode | |
Display Features | - | Reading mode, Colour temperature adjustment, night mode | |
Display Protection (Screen Protector) | Corning Gorilla Glass 4 (scratch resistant glass) | - |
PROCESSOR | OPPO R9 | Xiaomi Redmi 7A |
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Processor Type (CPU) | MediaTek Helio P10 | Qualcomm Snapdragon 439 | |
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Clock Speed | 2 GHz | 2 GHz | Both phones have the same clock speed. |
Processor Core Qty | 8-core | 8-core | Both phones have the same number of phone cores. |
64-bit Architecture | - | Yes | Xiaomi Redmi 7A has 64-bit architecture. |
Graphics System (GPU) | Mali T860 MP2 | Qualcomm ADRENO 505 |
MEMORY | OPPO R9 | Xiaomi Redmi 7A |
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RAM | 4 GB | 2 GB | OPPO R9 has more RAM than Xiaomi Redmi 7A. |
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Internal Memory Size (Storage Capacity) | 64 GB | 16 GB | OPPO R9 has more internal memory than Xiaomi Redmi 7A. |
Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 128 GB | microSDHC, microSDXC - up to 256 GB |
CAMERA | OPPO R9 | Xiaomi Redmi 7A |
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MAIN CAMERA |
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Number of Main Cameras | 1 | 1 | |
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Sensor Resolution | 13 Megapixel | 12 Megapixel | OPPO R9 has better camera resolution than Xiaomi Redmi 7A. |
Lens Aperture | F/2.2 | F/2.2 | Both phones have the same camera lens aperture. |
Pixel Size | - | 1.25 μm | |
Focus Adjustment | Automatic | Automatic | |
Special Effects | - | HDR | |
HDR Mode | Auto HDR mode | Auto HDR mode | |
Camera Modes | Panorama | AI portrait mode, AI Beautify 4.0 | |
Face Recognition (Face ID) | Face detection | Face recognition | Both phones have face detection. |
Light Source | LED light | LED flash | |
Video Resolutions | 1920 x 1080 (1080p) | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps | |
Camera Features (Functions) | - | Phase Detect Auto-Focus (PDAF) |
FRONT CAMERA |
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Number of Front Cameras | 1 | 1 | |
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Sensor Resolution (Front) | 16 Megapixel | 5 Megapixel | OPPO R9 has better front camera resolution than Xiaomi Redmi 7A. |
Lens Aperture (Front) | F/2.0 | - | |
Special Effects (Front) | - | HDR | |
Camera Modes (Front) | - | AI portrait mode, AI Beautify 4.0 | |
Face Recognition (Face ID) | - | Face recognition | Xiaomi Redmi 7A has face detection. |
Light Source (Front) | - | Display flash | |
Camera Features (Front) | - | Selfie countdown |
BATTERY AND CHARGING | OPPO R9 | Xiaomi Redmi 7A |
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Battery Capacity (Battery Size) | 2850 mAh | 4000 mAh | Xiaomi Redmi 7A has larger battery capacity than OPPO R9. |
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Battery Technology | Lithium polymer | - |
CELLULAR | OPPO R9 | Xiaomi Redmi 7A |
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Technology | CDMA2000 1X / GSM / WCDMA (UMTS) | WCDMA (UMTS) / GSM | |
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Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
Operating System | ColorOS 3.0 (based on Android 5.1) | Android 9.0 Pie | |
User Interface | - | MIUI 9 | |
Navigation | GPS, A-GPS | GPS, A-GPS, GLONASS, BeiDou, Galileo |
COMMUNICATIONS | OPPO R9 | Xiaomi Redmi 7A |
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Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE | GPRS, EDGE, HSDPA, HSUPA, HSPA+, VoLTE, FDD-LTE, TDD-LTE | |
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2G Band | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM, 800 CDMA2000 1X | 850 GSM, 900 GSM, 1900 GSM, 2100 GSM | |
3G UMTS Band | - | Band 1, Band 2, Band 5, Band 8 | |
3G UMTS Frequency | - | 2100, 1900, 850, 900 | |
4G LTE Band | Band 1, Band 3, Band 5, Band 38, Band 39, Band 40, Band 41 | Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 20, Band 38, Band 40 | |
4G LTE Frequency | FDD 2100, FDD 1800+, FDD 850, TDD 2600, TDD 1900, TDD 2300, TDD 2500 | FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 800 DD, TDD 2600, TDD 2300 | |
Wireless Interface | IEEE 802.11a/b/g/n | IEEE 802.11b/g/n | |
Bluetooth | Bluetooth 4.0 | Bluetooth 4.2 | |
Messaging Services | SMS, MMS | SMS, MMS |
MEDIA | OPPO R9 | Xiaomi Redmi 7A |
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Supported Digital Audio Standards | WAV, MP3, FLAC, eAAC+ | AAC, PCM, AMR, MP3, FLAC, AAC +, MP4, AMR-WB, AMR-NB, WAVE | |
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Supported Digital Video Standards | MPEG-4, H.264 | FLV, H.263, H.264 AVC Main Profile (MP), H.264 AVC Baseline Profile(BP) |
FEATURES | OPPO R9 | Xiaomi Redmi 7A |
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Phone Functions | Speakerphone, call timer, conference call, flight mode, vibrating alert | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | |
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Sensors | Accelerometer, proximity sensor, digital compass, gyro sensor | Accelerometer, ambient light sensor, proximity sensor, digital compass | |
Security Devices | Fingerprint reader | Face recognition | |
Security Technology | - | A.I. face recognition | |
Additional Phone Features | Active noise-cancellation | AI face unlock |
OTHERS | OPPO R9 | Xiaomi Redmi 7A |
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Included Accessories | Power adapter | USB cable, power adapter, SIM card removal tool | |
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Compliant Standards | - | TÜV Rheinland Certified Eye-Care |