Side by side comparison and review of OPPO R9 and Xiaomi Redmi Note 4. Compare sizes, cameras, batteries, memory capacities and other key specifications and features to simplify the choice of your perfect phone. Our goal is to make it easier for you to decide on the phone that will best meet your expectations by revealing the main differences between the products.
| DESIGN AND DIMENSIONS | OPPO R9 | Xiaomi Redmi Note 4 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Form Factor | Touch | Touch | |
| Height | 151.8 mm | 151 mm | OPPO R9 has greater height than Xiaomi Redmi Note 4. |
| Width | 74.3 mm | 76 mm | Xiaomi Redmi Note 4 has greater width than OPPO R9. |
| Depth | 6.6 mm | 8.38 mm | OPPO R9 is narrower than OPPO R9. |
| Weight | 145 g | 175 g | OPPO R9 is lighter than OPPO R9. |
| Body Colour | Gold | Grey | Silver | Gold | |
| Body Material | - | Metal | |
| Waterproof (Water-resistant) | - | - | |
| Connector Type | Micro-USB - 5 pin Micro-USB Type B Headset jack - mini-phone 3.5mm |
Micro-USB - 5 pin Micro-USB Type B Headset jack |
|
| SIM Card Type (Size) | Nano SIM | Micro 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 Note 4 |
|---|
| Display Type | - | LCD display | |
|---|---|---|---|
| Display Technology | - | IPS | |
| Screen Size (Display Size) | 5.5" | 5.5" | Both phones have the same screen size. |
| Screen Resolution (Display Resolution) | 1920 x 1080 pixels | 1920 x 1080 pixels | Both phones have the same screen resolution. |
| Display Format | Full HD | Full HD | |
| Pixel Density | 401 ppi | 401 ppi | Both phones have the same pixel density. |
| Colour Depth | 16.7 million colours | - | |
| Contrast Ratio | - | 1000:1 | |
| Display Features | - | Night Display | |
| Display Protection (Screen Protector) | Corning Gorilla Glass 4 (scratch resistant glass) | - |
| PROCESSOR | OPPO R9 | Xiaomi Redmi Note 4 |
|---|
| Processor Type (CPU) | MediaTek Helio P10 | MediaTek Helio X20 | |
|---|---|---|---|
| Clock Speed | 2 GHz | 2.1 GHz | Xiaomi Redmi Note 4 has higher clock speed than OPPO R9. |
| Processor Core Qty | 8-core | 10-core | Xiaomi Redmi Note 4 has higher processor core quantity than OPPO R9. |
| 64-bit Architecture | - | Yes | Xiaomi Redmi Note 4 has 64-bit architecture. |
| Graphics System (GPU) | Mali T860 MP2 | Mali T880 MP4 |
| MEMORY | OPPO R9 | Xiaomi Redmi Note 4 |
|---|
| RAM | 4 GB | 2 GB | OPPO R9 has more RAM than Xiaomi Redmi Note 4. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 64 GB | 16 GB | OPPO R9 has more internal memory than Xiaomi Redmi Note 4. |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 128 GB | microSDHC, microSDXC - up to 128 GB |
| CAMERA | OPPO R9 | Xiaomi Redmi Note 4 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution | 13 Megapixel | 13 Megapixel | Both phones have the same camera resolution. |
| Lens Aperture | F/2.2 | F/2.0 | Xiaomi Redmi Note 4 has better lens aperture than OPPO R9. |
| Lens Construction | - | 5-element | |
| Focus Adjustment | Automatic | Automatic | |
| HDR Mode | Auto HDR mode | Auto HDR mode | |
| Camera Modes | Panorama | Burst mode, Panorama | |
| Face Recognition (Face ID) | Face detection | Face recognition | Both phones have face detection. |
| Light Source | LED light | LED light | |
| Video Resolutions | 1920 x 1080 (1080p) | 1920 x 1080 (1080p), 1280 x 720 (720p) | |
| Camera Features (Functions) | - | Phase Detect Auto-Focus (PDAF) |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 16 Megapixel | 5 Megapixel | OPPO R9 has better front camera resolution than Xiaomi Redmi Note 4. |
| Lens Type (Front) | - | Wide-angle lens | |
| Lens Aperture (Front) | F/2.0 | F/2.0 | Both phones have the same front camera lens aperture. |
| Special Effects (Front) | - | Real-time face beautification | |
| Face Recognition (Face ID) | - | Face recognition | Xiaomi Redmi Note 4 has face detection. |
| BATTERY AND CHARGING | OPPO R9 | Xiaomi Redmi Note 4 |
|---|
| Battery Capacity (Battery Size) | 2850 mAh | 4100 mAh | Xiaomi Redmi Note 4 has larger battery capacity than OPPO R9. |
|---|---|---|---|
| Battery Technology | Lithium polymer | - |
| CELLULAR | OPPO R9 | Xiaomi Redmi Note 4 |
|---|
| Technology | CDMA2000 1X / GSM / WCDMA (UMTS) | CDMA2000 1X / GSM / WCDMA (UMTS) / TD-SCDMA | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
| Operating System | ColorOS 3.0 (based on Android 5.1) | Android 6.0 (Marshmallow) | |
| User Interface | - | MIUI 8 | |
| Navigation | GPS, A-GPS | GPS, A-GPS, GLONASS, BeiDou |
| COMMUNICATIONS | OPPO R9 | Xiaomi Redmi Note 4 |
|---|
| 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 | |
| 4G LTE Band | Band 1, Band 3, Band 5, Band 38, Band 39, Band 40, Band 41 | Band 1, Band 3, Band 5, Band 7, Band 8, Band 38, Band 39, Band 40, Band 41 | |
| 4G LTE Frequency | FDD 2100, FDD 1800+, FDD 850, TDD 2600, TDD 1900, TDD 2300, TDD 2500 | FDD 2100, FDD 1800+, FDD 850, FDD 2600, FDD 900, TDD 2600, TDD 1900, TDD 2300, TDD 2500 | |
| Wireless Interface | IEEE 802.11a/b/g/n | IEEE 802.11a/b/g/n/ac | |
| Bluetooth | Bluetooth 4.0 | Bluetooth 4.2 | |
| Bluetooth Profiles | - | HID | |
| Messaging Services | SMS, MMS | SMS, MMS |
| MEDIA | OPPO R9 | Xiaomi Redmi Note 4 |
|---|
| Supported Digital Audio Standards | WAV, MP3, FLAC, eAAC+ | WAV, AAC, PCM, AMR, MP3, FLAC, AAC +, eAAC+, APE (Monkey's Audio), DSD | |
|---|---|---|---|
| Supported Digital Video Standards | MPEG-4, H.264 | MKV, VC-1, XviD, MPEG-4, H.264, M4V, H.265 |
| FEATURES | OPPO R9 | Xiaomi Redmi Note 4 |
|---|
| Phone Functions | Speakerphone, call timer, conference call, flight mode, vibrating alert | Speakerphone, call timer, conference call, flight mode, vibrating alert | |
|---|---|---|---|
| Sensors | Accelerometer, proximity sensor, digital compass, gyro sensor | Accelerometer, ambient light sensor, proximity sensor, gyro sensor, hall sensor | |
| Security Devices | Fingerprint reader | Fingerprint reader | |
| Additional Phone Features | Active noise-cancellation | Infrared remote control |
| OTHERS | OPPO R9 | Xiaomi Redmi Note 4 |
|---|
| Included Accessories | Power adapter | Power adapter |
|---|
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