In depth comparison and review of Xiaomi MI 4i and OPPO AX7. 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 MI 4i | OPPO AX7 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Form Factor | Touch | Touch | |
| Height | 138.1 mm | 155.9 mm | OPPO AX7 has greater height than Xiaomi MI 4i. |
| Width | 69.6 mm | 75.4 mm | OPPO AX7 has greater width than Xiaomi MI 4i. |
| Depth | 7.8 mm | 8.1 mm | Xiaomi MI 4i is narrower than Xiaomi MI 4i. |
| Weight | 130 g | 168 g | Xiaomi MI 4i is lighter than Xiaomi MI 4i. |
| Body Colour | Black | Dark grey | White | Glaze blue | |
| 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 |
Headset jack - mini-phone 3.5mm Micro-USB - 5 pin Micro-USB Type B |
|
| SIM Card Type (Size) | Micro SIM | Nano SIM | |
| SIM Card Qty | Dual-SIM | Single-SIM |
| DISPLAY | Xiaomi MI 4i | OPPO AX7 |
|---|
| Display Type | LCD display | LCD display | |
|---|---|---|---|
| Display Technology | IPS | LTPS TFT | |
| Screen Size (Display Size) | 5" | 6.2" | OPPO AX7 has larger screen size than Xiaomi MI 4i. |
| Screen Resolution (Display Resolution) | 1920 x 1080 pixels | 1520 x 720 pixels | Xiaomi MI 4i has better screen resolution than OPPO AX7. |
| Display Format | Full HD | HD+ | |
| Pixel Density | 441 ppi | - | |
| Colour Depth | 16.7 million colours | 16.7 million colours | Both phones have the same color depth. |
| Display Features | - | In-Cell Display Technology | |
| Display Protection (Screen Protector) | Corning Concore Glass | - |
| PROCESSOR | Xiaomi MI 4i | OPPO AX7 |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 615 | Qualcomm Snapdragon 450 | |
|---|---|---|---|
| Clock Speed | 1.7 GHz | - | |
| Processor Core Qty | 8-core | - | |
| 64-bit Architecture | Yes | Yes | Both phones have 64-bit architecture. |
| Graphics System (GPU) | Qualcomm ADRENO 405 | Qualcomm ADRENO 506 |
| MEMORY | Xiaomi MI 4i | OPPO AX7 |
|---|
| RAM | 2 GB | 4 GB | OPPO AX7 has more RAM than Xiaomi MI 4i. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 16 GB | 64 GB | OPPO AX7 has more internal memory than Xiaomi MI 4i. |
| Supported Flash Memory Cards (Expandable Memory) | - | microSDHC, microSDXC - up to 256 GB |
| CAMERA | Xiaomi MI 4i | OPPO AX7 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 1 | 2 | |
|---|---|---|---|
| Sensor Resolution | 13 Megapixel | 13 Megapixel | Both phones have the same camera resolution. |
| Lens Aperture | F/2.0 | F/2.2 | Xiaomi MI 4i has better lens aperture than Xiaomi MI 4i. |
| Lens Construction | 5-element | 5-element | |
| Focus Adjustment | Automatic | Automatic | |
| Special Effects | - | HDR | |
| HDR Mode | Auto HDR mode | - | |
| Camera Modes | Panorama, manual mode | - | |
| Face Recognition (Face ID) | Face detection, smile detection | - | Xiaomi MI 4i has face detection. |
| Light Source | Dual LED flash | LED light | |
| Video Resolutions | 1920 x 1080 (1080p) | - | |
| Camera Features (Functions) | - | Phase Detect Auto-Focus (PDAF), AR sticker, AI Beautify |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | - | 2 Megapixel | |
|---|---|---|---|
| Lens Aperture (2nd Camera) | - | F/2.4 |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 5 Megapixel | 16 Megapixel | OPPO AX7 has better front camera resolution than Xiaomi MI 4i. |
| Lens Type (Front) | Wide-angle lens | - | |
| Lens Aperture (Front) | F/1.8 | F/2.0 | Xiaomi MI 4i has better front lens aperture than Xiaomi MI 4i. |
| Lens Element Qty (Front) | 5-element | - | |
| Special Effects (Front) | - | HDR, Bokeh effect |
| BATTERY AND CHARGING | Xiaomi MI 4i | OPPO AX7 |
|---|
| Battery Capacity (Battery Size) | 3120 mAh | 4230 mAh | OPPO AX7 has larger battery capacity than Xiaomi MI 4i. |
|---|---|---|---|
| Talk Time | 2100 minutes | - | |
| Run Time Details | Talk (WCDMA): up to 2100 min | - | |
| Battery Technology | Lithium Ion | - |
| CELLULAR | Xiaomi MI 4i | OPPO AX7 |
|---|
| Technology | TD-SCDMA / WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
| Operating System | Android 5.0.2 (Lollipop) | ColorOS 5.2 (based on Android 8.1) | |
| User Interface | MIUI V6 | - | |
| Navigation | GPS, A-GPS, GLONASS, BeiDou | GPS, A-GPS, GLONASS, BeiDou, Galileo |
| COMMUNICATIONS | Xiaomi MI 4i | OPPO AX7 |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE | GPRS, EDGE, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE | |
|---|---|---|---|
| 2G Band | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | |
| 3G UMTS Band | - | Band 1, Band 2, Band 4, Band 5, Band 6, Band 8, Band 19 | |
| 3G UMTS Frequency | - | 2100, 1900, 1700, 850, 800, 900, 800 | |
| 4G LTE Band | Band 3, Band 7, Band 38, Band 39, Band 40, Band 41 | 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 1800+, FDD 2600, 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 lower, FDD 800 upper, FDD 800 DD, FDD 850+, FDD 700 APT, TDD 2600, TDD 1900, TDD 2300, TDD 2500 | |
| Wireless Interface | IEEE 802.11a/b/g/n/ac | IEEE 802.11b/g/n | |
| Bluetooth | Bluetooth 4.1 | Bluetooth 4.2 | |
| Bluetooth Profiles | A2DP, HID | - | |
| Messaging Services | SMS, MMS | SMS, MMS |
| MEDIA | Xiaomi MI 4i | OPPO AX7 |
|---|
| Supported Digital Audio Standards | WAV, MP3, FLAC, eAAC+ | - | |
|---|---|---|---|
| Supported Digital Video Standards | XviD, MPEG-4, DivX, H.264 | - |
| FEATURES | Xiaomi MI 4i | OPPO AX7 |
|---|
| 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, ambient light sensor, proximity sensor, digital compass, gyro sensor, hall sensor | Accelerometer, ambient light sensor, proximity sensor, digital compass, G-sensor | |
| Security Devices | - | Fingerprint reader | |
| Additional Phone Features | MIMO technology, Active noise-cancellation | - |
| OTHERS | Xiaomi MI 4i | OPPO AX7 |
|---|
| Included Accessories | Power adapter | Headset, screen protection film, USB cable, power adapter, SIM card removal tool, protective case |
|---|
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