In depth comparison and review of OPPO R9 and Google Pixel 4a. 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 R9 | Google Pixel 4a |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | - | G025J | |
| Form Factor | Touch | Touch | |
| Height | 151.8 mm | 144 mm | OPPO R9 has greater height than Google Pixel 4a. |
| Width | 74.3 mm | 69.4 mm | OPPO R9 has greater width than Google Pixel 4a. |
| Depth | 6.6 mm | 8.2 mm | OPPO R9 is narrower than OPPO R9. |
| Weight | 145 g | 143 g | Google Pixel 4a is lighter than OPPO R9. |
| Body Colour | Gold | Just black | |
| Body Material | - | Polycarbonate | |
| Waterproof (Water-resistant) | - | - | |
| SAR Value | - | 1.19 W/kg (body), 1.18 W/kg (head) | |
| Connector Type | Micro-USB - 5 pin Micro-USB Type B Headset jack - mini-phone 3.5mm |
USB Type-C - 24 pin USB-C Headset jack - mini-phone 3.5mm |
|
| SIM Card Type (Size) | Nano SIM | Nano SIM, Electronic SIM card (e-SIM) | |
| SIM Card Qty | Dual-SIM (SIM1 and SIM2/MicroSD slots) | Single-SIM | |
| SIM Card Configuration Details | Nano SIM + nano SIM/microSD | - |
| DISPLAY | OPPO R9 | Google Pixel 4a |
|---|
| Display Type | - | OLED display | |
|---|---|---|---|
| Display Technology | - | OLED | |
| Screen Size (Display Size) | 5.5" | 5.8" | Google Pixel 4a has larger screen size than OPPO R9. |
| Screen Resolution (Display Resolution) | 1920 x 1080 pixels | 2340 x 1080 pixels | Google Pixel 4a has better screen resolution than OPPO R9. |
| Display Format | Full HD | Full HD+ | |
| Pixel Density | 401 ppi | 443 ppi | Google Pixel 4a has better pixel density than OPPO R9. |
| Aspect Ratio | - | 19.5:9 | |
| Colour Depth | 16.7 million colours | 16.7 million colours | Both phones have the same color depth. |
| Contrast Ratio | - | 100000:1 | |
| HDR | - | Yes | Google Pixel 4a has HDR. |
| Display Features | - | Always-on display, Now Playing, True black level, display with transmissive hole | |
| Display Protection (Screen Protector) | Corning Gorilla Glass 4 (scratch resistant glass) | Corning Gorilla Glass 3 (scratch resistant glass) |
| PROCESSOR | OPPO R9 | Google Pixel 4a |
|---|
| Processor Type (CPU) | MediaTek Helio P10 | Qualcomm Snapdragon 730 | |
|---|---|---|---|
| Clock Speed | 2 GHz | 2.2 GHz | Google Pixel 4a has higher clock speed than OPPO R9. |
| Processor Core Qty | 8-core | 8-core | Both phones have the same number of phone cores. |
| 64-bit Architecture | - | Yes | Google Pixel 4a has 64-bit architecture. |
| Graphics System (GPU) | Mali T860 MP2 | Qualcomm ADRENO 618 |
| MEMORY | OPPO R9 | Google Pixel 4a |
|---|
| RAM | 4 GB | LPDDR4X SDRAM - 6 GB | Google Pixel 4a has more RAM than OPPO R9. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 64 GB | 128 GB | Google Pixel 4a has more internal memory than OPPO R9. |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 128 GB | - |
| CAMERA | OPPO R9 | Google Pixel 4a |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution | 13 Megapixel | 12.2 Megapixel | OPPO R9 has better camera resolution than Google Pixel 4a. |
| Lens Aperture | F/2.2 | F/1.7 | Google Pixel 4a has better lens aperture than OPPO R9. |
| Field of View (FoV) | - | 77 degree(s) | |
| Pixel Size | - | 1.4 μm | |
| Optical Image Stabiliser (OIS) | - | Optical Image Stabiliser (OIS) | Google Pixel 4a has optical stabilisation. |
| Focus Adjustment | Automatic | Automatic | |
| Special Effects | - | Blur | |
| HDR Mode | Auto HDR mode | HDR+ | |
| Camera Modes | Panorama | Portrait mode, Night Sight | |
| Face Recognition (Face ID) | Face detection | - | OPPO R9 has face detection. |
| Light Source | LED light | LED flash | |
| Video Resolutions | 1920 x 1080 (1080p) | 1920 x 1080 (1080p) at 30 fps, 1920 x 1080 (1080p) at 60 fps, 1280 x 720 (720p) at 30 fps, 3840 x 2160 (4K) at 30 fps, 1280 x 720 (720p) at 60 fps, 1920 x 1080 (1080p) at 120 fps, 1280 x 720 (720p) at 240 fps | |
| Camera Features (Functions) | - | Electronic Image Stabiliser (EIS), Dual Pixel Phase Detect Auto-Focus (PDAF), Share in a snap |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 16 Megapixel | 8 Megapixel | OPPO R9 has better front camera resolution than Google Pixel 4a. |
| Lens Aperture (Front) | F/2.0 | F/2.0 | Both phones have the same front camera lens aperture. |
| Field of View (Front) | - | 84 degree(s) | |
| Pixel Size (Front) | - | 1.12 μm | |
| Focus Adjustment | - | Focus free | |
| Video Resolutions (Front) | - | 864 x 480, 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps |
| BATTERY AND CHARGING | OPPO R9 | Google Pixel 4a |
|---|
| Battery Capacity (Battery Size) | 2850 mAh | 3140 mAh | Google Pixel 4a has larger battery capacity than OPPO R9. |
|---|---|---|---|
| Fast Charging Technology | - | Power Delivery 2.0 | Google Pixel 4a has fast charging technology. |
| Battery Technology | Lithium polymer | - |
| CELLULAR | OPPO R9 | Google Pixel 4a |
|---|
| Technology | CDMA2000 1X / GSM / WCDMA (UMTS) | CDMA2000 1X / GSM / WCDMA (UMTS) | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
| Operating System | ColorOS 3.0 (based on Android 5.1) | Android 10 | |
| Intelligent Assistant | - | Google Assistant | |
| Navigation | GPS, A-GPS | GPS, GLONASS, Galileo, QZSS |
| COMMUNICATIONS | OPPO R9 | Google Pixel 4a |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE | GPRS, EDGE, EV-DO, HSDPA, HSUPA, HSPA+, LTE | |
|---|---|---|---|
| 2G Band | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM, 800 CDMA2000 1X | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM, 800 CDMA2000 1X, 1900 CDMA2000 1X | |
| 3G UMTS Band | - | Band 1, Band 2, Band 4, Band 5, Band 8 | |
| 3G UMTS Frequency | - | 2100, 1900, 1700, 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 12, Band 13, Band 14, Band 17, Band 18, Band 20, Band 25, Band 26, Band 28, Band 29, Band 30, Band 38, Band 39, Band 40, Band 41, Band 66, Band 71 | |
| 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 700a, FDD 700c, FDD 700 PS, FDD 700b, FDD 800 lower, FDD 800 DD, FDD 1900+, FDD 850+, FDD 700 APT, FDD 700d, FDD 2300 WCS, TDD 2600, TDD 1900, TDD 2300, TDD 2500, FDD 1700 - 2110 AWS-3, FDD 600 | |
| Wireless Interface | IEEE 802.11a/b/g/n | IEEE 802.11a/b/g/n/ac | |
| Bluetooth | Bluetooth 4.0 | Bluetooth 5.0 LE | |
| Bluetooth Profiles | - | A2DP | |
| NFC | - | Yes | Google Pixel 4a has NFC reader for mobile payments. |
| Messaging Services | SMS, MMS | SMS, MMS |
| MEDIA | OPPO R9 | Google Pixel 4a |
|---|
| Supported Digital Audio Standards | WAV, MP3, FLAC, eAAC+ | AAC, apt-X, LDAC, apt-X HD | |
|---|---|---|---|
| Supported Digital Video Standards | MPEG-4, H.264 | - |
| FEATURES | OPPO R9 | Google Pixel 4a |
|---|
| Phone Functions | Speakerphone, call timer, conference call, flight mode, vibrating alert | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | |
|---|---|---|---|
| Sensors | Accelerometer, proximity sensor, digital compass, gyro sensor | Accelerometer, ambient light sensor, proximity sensor, barometer, magnetometer, gyro sensor | |
| Security Devices | Fingerprint reader | Fingerprint reader | |
| Additional Phone Features | Active noise-cancellation | Dual microphones, MIMO technology, Android Sensor Hub, Noise suppression, ARCore, Google Lens, Titan M Security Module, Pixel Imprint sensor, 3 years of security and OS updates, Google Cast |
| OTHERS | OPPO R9 | Google Pixel 4a |
|---|
| Included Accessories | Power adapter | SIM card removal tool, Quick switch adapter, 18W USB-C power adapter, USB-C to USB-C cable (1 m) | |
|---|---|---|---|
| Compliant Standards | - | HAC (Hearing Aid Compatible) |
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