In depth comparison and review of OPPO R9 and Xiaomi MI 4i. 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 | Xiaomi MI 4i |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Form Factor | Touch | Touch | |
| Height | 151.8 mm | 138.1 mm | OPPO R9 has greater height than Xiaomi MI 4i. |
| Width | 74.3 mm | 69.6 mm | OPPO R9 has greater width than Xiaomi MI 4i. |
| Depth | 6.6 mm | 7.8 mm | OPPO R9 is narrower than OPPO R9. |
| Weight | 145 g | 130 g | Xiaomi MI 4i is lighter than OPPO R9. |
| Body Colour | Gold | Black | Dark grey | White | |
| Waterproof (Water-resistant) | - | - | |
| SAR Value | - | 1.29 W/kg | |
| Integrated Components | - | FM radio | |
| 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 - mini-phone 3.5mm |
|
| SIM Card Type (Size) | Nano SIM | Micro 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 MI 4i |
|---|
| Display Type | - | LCD display | |
|---|---|---|---|
| Display Technology | - | IPS | |
| Screen Size (Display Size) | 5.5" | 5" | OPPO R9 has larger screen size than Xiaomi MI 4i. |
| 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 | 441 ppi | Xiaomi MI 4i has better pixel density than OPPO R9. |
| Colour Depth | 16.7 million colours | 16.7 million colours | Both phones have the same color depth. |
| Display Protection (Screen Protector) | Corning Gorilla Glass 4 (scratch resistant glass) | Corning Concore Glass |
| PROCESSOR | OPPO R9 | Xiaomi MI 4i |
|---|
| Processor Type (CPU) | MediaTek Helio P10 | Qualcomm Snapdragon 615 | |
|---|---|---|---|
| Clock Speed | 2 GHz | 1.7 GHz | OPPO R9 has higher clock speed than Xiaomi MI 4i. |
| Processor Core Qty | 8-core | 8-core | Both phones have the same number of phone cores. |
| 64-bit Architecture | - | Yes | Xiaomi MI 4i has 64-bit architecture. |
| Graphics System (GPU) | Mali T860 MP2 | Qualcomm ADRENO 405 |
| MEMORY | OPPO R9 | Xiaomi MI 4i |
|---|
| RAM | 4 GB | 2 GB | OPPO R9 has more RAM than Xiaomi MI 4i. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 64 GB | 16 GB | OPPO R9 has more internal memory than Xiaomi MI 4i. |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 128 GB | - |
| CAMERA | OPPO R9 | Xiaomi MI 4i |
|---|
| 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 MI 4i 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 | Panorama, manual mode | |
| Face Recognition (Face ID) | Face detection | Face detection, smile detection | Both phones have face detection. |
| Light Source | LED light | Dual LED flash | |
| Video Resolutions | 1920 x 1080 (1080p) | 1920 x 1080 (1080p) |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 16 Megapixel | 5 Megapixel | OPPO R9 has better front camera resolution than Xiaomi MI 4i. |
| Lens Type (Front) | - | Wide-angle lens | |
| Lens Aperture (Front) | F/2.0 | F/1.8 | Xiaomi MI 4i has better front lens aperture than OPPO R9. |
| Lens Element Qty (Front) | - | 5-element |
| BATTERY AND CHARGING | OPPO R9 | Xiaomi MI 4i |
|---|
| Battery Capacity (Battery Size) | 2850 mAh | 3120 mAh | Xiaomi MI 4i has larger battery capacity than OPPO R9. |
|---|---|---|---|
| Talk Time | - | 2100 minutes | |
| Run Time Details | - | Talk (WCDMA): up to 2100 min | |
| Battery Technology | Lithium polymer | Lithium Ion |
| CELLULAR | OPPO R9 | Xiaomi MI 4i |
|---|
| Technology | CDMA2000 1X / GSM / WCDMA (UMTS) | TD-SCDMA / WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
| Operating System | ColorOS 3.0 (based on Android 5.1) | Android 5.0.2 (Lollipop) | |
| User Interface | - | MIUI V6 | |
| Navigation | GPS, A-GPS | GPS, A-GPS, GLONASS, BeiDou |
| COMMUNICATIONS | OPPO R9 | Xiaomi MI 4i |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE | GPRS, EDGE, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE | |
|---|---|---|---|
| 2G Band | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM, 800 CDMA2000 1X | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | |
| 4G LTE Band | Band 1, Band 3, Band 5, Band 38, Band 39, Band 40, Band 41 | Band 3, Band 7, 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 1800+, FDD 2600, 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 4.1 | |
| Bluetooth Profiles | - | A2DP, HID | |
| Messaging Services | SMS, MMS | SMS, MMS |
| MEDIA | OPPO R9 | Xiaomi MI 4i |
|---|
| Supported Digital Audio Standards | WAV, MP3, FLAC, eAAC+ | WAV, MP3, FLAC, eAAC+ | |
|---|---|---|---|
| Supported Digital Video Standards | MPEG-4, H.264 | XviD, MPEG-4, DivX, H.264 |
| FEATURES | OPPO R9 | Xiaomi MI 4i |
|---|
| 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, digital compass, gyro sensor, hall sensor | |
| Security Devices | Fingerprint reader | - | |
| Additional Phone Features | Active noise-cancellation | MIMO technology, Active noise-cancellation |
| OTHERS | OPPO R9 | Xiaomi MI 4i |
|---|
| Included Accessories | Power adapter | Power adapter |
|---|
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