Side by side comparison and review of OPPO AX7 and Xiaomi Redmi 9. 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 AX7 | Xiaomi Redmi 9 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Form Factor | Touch | Touch | |
| Height | 155.9 mm | 163.32 mm | Xiaomi Redmi 9 has greater height than OPPO AX7. |
| Width | 75.4 mm | 77.01 mm | Xiaomi Redmi 9 has greater width than OPPO AX7. |
| Depth | 8.1 mm | 9.1 mm | OPPO AX7 is narrower than OPPO AX7. |
| Weight | 168 g | 198 g | OPPO AX7 is lighter than OPPO AX7. |
| Body Colour | Glaze blue | Carbon grey | |
| Waterproof (Water-resistant) | - | - | |
| SAR Value | - | 1.065 W/kg (body), 0.789 W/kg (head), 2.309 W/kg (limb) | |
| Integrated Components | - | Ultra-linear speaker | |
| Connector Type | Headset jack - mini-phone 3.5mm Micro-USB - 5 pin Micro-USB Type B |
USB Type-C - 24 pin USB-C Headset jack - mini-phone 3.5mm |
|
| SIM Card Type (Size) | Nano SIM | Nano SIM | |
| SIM Card Qty | Single-SIM | Dual-SIM |
| DISPLAY | OPPO AX7 | Xiaomi Redmi 9 |
|---|
| Display Type | LCD display | - | |
|---|---|---|---|
| Display Technology | LTPS TFT | - | |
| Screen Size (Display Size) | 6.2" | 6.53" | Xiaomi Redmi 9 has larger screen size than OPPO AX7. |
| Screen Resolution (Display Resolution) | 1520 x 720 pixels | 2340 x 1080 pixels | Xiaomi Redmi 9 has better screen resolution than OPPO AX7. |
| Display Format | HD+ | Full HD+ | |
| Pixel Density | - | 394 ppi | |
| Aspect Ratio | - | 19.5:9 | |
| Max Brightness | - | 400 cd/m² | |
| Colour Depth | 16.7 million colours | - | |
| Contrast Ratio | - | 1500:1 | |
| Display Enhancement Technology | - | Sunlight mode | |
| Display Features | In-Cell Display Technology | Colour temperature adjustment, Dot Drop display, Reading mode 2.0 | |
| Display Protection (Screen Protector) | - | Corning Gorilla Glass 3 (scratch resistant glass) |
| PROCESSOR | OPPO AX7 | Xiaomi Redmi 9 |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 450 | MediaTek Helio G80 | |
|---|---|---|---|
| Clock Speed | - | 2 GHz | |
| Processor Core Qty | - | 8-core | |
| 64-bit Architecture | Yes | Yes | Both phones have 64-bit architecture. |
| Graphics System (GPU) | Qualcomm ADRENO 506 | Mali-G52 MC2 |
| MEMORY | OPPO AX7 | Xiaomi Redmi 9 |
|---|
| RAM | 4 GB | LPDDR4X SDRAM - 4 GB | Both phones have the same RAM size. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 64 GB | 64 GB | Both phones have the same internal memory capacity. |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 256 GB | microSD |
| CAMERA | OPPO AX7 | Xiaomi Redmi 9 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 2 | 4 | |
|---|---|---|---|
| Sensor Resolution | 13 Megapixel | 13 Megapixel | Both phones have the same camera resolution. |
| Lens Type | - | Wide-angle lens | |
| Lens Aperture | F/2.2 | F/2.2 | Both phones have the same camera lens aperture. |
| Lens Construction | 5-element | - | |
| Field of View (FoV) | - | 75.2 degree(s) | |
| Focus Adjustment | Automatic | Automatic | |
| Special Effects | HDR | HDR, Kaleidoscope | |
| Camera Modes | - | Portrait mode | |
| Light Source | LED light | Flash | |
| Video Resolutions | - | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps | |
| Camera Features (Functions) | Phase Detect Auto-Focus (PDAF), AR sticker, AI Beautify | - |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | 2 Megapixel | 8 Megapixel | Xiaomi Redmi 9 has better second camera resolution than OPPO AX7. |
|---|---|---|---|
| Lens Type (2nd Camera) | - | Ultra wide-angle lens | |
| Lens Aperture (2nd Camera) | F/2.4 | F/2.2 | Xiaomi Redmi 9 has better second camera lens aperture than OPPO AX7. |
| Field of View (2nd Camera) | - | 118 degree(s) |
| THIRD CAMERA |
|---|
| Sensor Resolution (3rd Camera) | - | 5 Megapixel | |
|---|---|---|---|
| Lens Aperture (3rd Camera) | - | F/2.4 | |
| Camera Functions (3rd Camera) | - | Macro camera |
| FOURTH CAMERA |
|---|
| Sensor Resolution (4th Camera) | - | 2 Megapixel | |
|---|---|---|---|
| Camera Functions (4th Camera) | - | Depth camera |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 16 Megapixel | 8 Megapixel | OPPO AX7 has better front camera resolution than Xiaomi Redmi 9. |
| Lens Aperture (Front) | F/2.0 | F/2.0 | Both phones have the same front camera lens aperture. |
| Field of View (Front) | - | 77.8 degree(s) | |
| Focus Adjustment | - | Focus free | |
| Special Effects (Front) | HDR, Bokeh effect | HDR | |
| Camera Modes (Front) | - | Portrait mode | |
| Light Source (Front) | - | Display flash | |
| Camera Features (Front) | - | Self-timer, Palm shutter |
| BATTERY AND CHARGING | OPPO AX7 | Xiaomi Redmi 9 |
|---|
| Battery Capacity (Battery Size) | 4230 mAh | 5020 mAh | Xiaomi Redmi 9 has larger battery capacity than OPPO AX7. |
|---|---|---|---|
| Talk Time | - | 1860 minutes | |
| Run Time Details | - | Talk: up to 1860 min Continuous navigation: up to 19 hrs Playback (video): up to 19 hrs Playback (Music): up to 185 hrs |
| CELLULAR | OPPO AX7 | Xiaomi Redmi 9 |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
| Operating System | ColorOS 5.2 (based on Android 8.1) | - | |
| Navigation | GPS, A-GPS, GLONASS, BeiDou, Galileo | GPS, A-GPS, GLONASS, BeiDou |
| COMMUNICATIONS | OPPO AX7 | Xiaomi Redmi 9 |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE | GPRS, EDGE, HSDPA, HSUPA, HSPA+, VoLTE, FDD-LTE, TDD-LTE | |
|---|---|---|---|
| 2G Band | 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 | Band 1, Band 2, Band 4, Band 5, Band 8 | |
| 3G UMTS Frequency | 2100, 1900, 1700, 850, 800, 900, 800 | 2100, 1900, 1700, 850, 900 | |
| 4G LTE Band | 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 | Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 20, Band 28, Band 38, Band 40, Band 41 | |
| 4G LTE Frequency | 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 | FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 800 DD, FDD 700 APT, TDD 2600, TDD 2300, TDD 2500 | |
| Wireless Interface | IEEE 802.11b/g/n | IEEE 802.11b/g/n | |
| Bluetooth | Bluetooth 4.2 | Bluetooth 5.0 | |
| Messaging Services | SMS, MMS | SMS, MMS |
| MEDIA | OPPO AX7 | Xiaomi Redmi 9 |
|---|
| Supported Digital Audio Standards | - | AAC, PCM, MP3, FLAC, AAC +, eAAC+, APE (Monkey's Audio), AMR-WB, AMR-NB | |
|---|---|---|---|
| Supported Digital Video Standards | - | MKV, H.264, ASP, MP4 |
| FEATURES | OPPO AX7 | Xiaomi Redmi 9 |
|---|
| Phone Functions | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | |
|---|---|---|---|
| Sensors | Accelerometer, ambient light sensor, proximity sensor, digital compass, G-sensor | Accelerometer, ambient light sensor, digital compass, distance sensor, infrared (IR) sensor | |
| Security Devices | Fingerprint reader | Face recognition, fingerprint reader | |
| Additional Phone Features | - | Fast Charging, AI face unlock |
| OTHERS | OPPO AX7 | Xiaomi Redmi 9 |
|---|
| Included Accessories | Headset, screen protection film, USB cable, power adapter, SIM card removal tool, protective case | SIM card removal tool, USB-C cable, TPU case, 10W charger |
|---|
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