In depth comparison and review of Xiaomi Redmi 9 and OPPO A15. 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 Redmi 9 | OPPO A15 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | - | CPH2185 | |
| Form Factor | Touch | Touch | |
| Height | 163.32 mm | 164 mm | OPPO A15 has greater height than Xiaomi Redmi 9. |
| Width | 77.01 mm | 75.4 mm | Xiaomi Redmi 9 has greater width than OPPO A15. |
| Depth | 9.1 mm | 7.9 mm | OPPO A15 is narrower than Xiaomi Redmi 9. |
| Weight | 198 g | 175 g | OPPO A15 is lighter than Xiaomi Redmi 9. |
| Body Colour | Carbon grey | Dynamic black | |
| Waterproof (Water-resistant) | - | - | |
| SAR Value | 1.065 W/kg (body), 0.789 W/kg (head), 2.309 W/kg (limb) | 1.16 W/kg (body), 2.77 W/kg (limb), 0.92 W/kg (head) | |
| Integrated Components | Ultra-linear speaker | - | |
| Connector Type | USB Type-C - 24 pin USB-C Headset jack - mini-phone 3.5mm |
Micro-USB Handset jack - mini-phone 3.5mm |
|
| SIM Card Type (Size) | Nano SIM | Nano SIM | |
| SIM Card Qty | Dual-SIM | Dual-SIM |
| DISPLAY | Xiaomi Redmi 9 | OPPO A15 |
|---|
| Display Type | - | LCD display | |
|---|---|---|---|
| Display Technology | - | LCD | |
| Screen Size (Display Size) | 6.53" | 6.52" | Xiaomi Redmi 9 has larger screen size than OPPO A15. |
| Screen Resolution (Display Resolution) | 2340 x 1080 pixels | 1600 x 720 pixels | Xiaomi Redmi 9 has better screen resolution than OPPO A15. |
| Display Format | Full HD+ | HD+ | |
| Pixel Density | 394 ppi | 269 ppi | Xiaomi Redmi 9 has better pixel density than OPPO A15. |
| Aspect Ratio | 19.5:9 | - | |
| Max Brightness | 400 cd/m² | 480 cd/m² | OPPO A15 has better display brightness than Xiaomi Redmi 9. |
| Contrast Ratio | 1500:1 | 1500:1 | Both phones have the same display contrast ratio. |
| Display Enhancement Technology | Sunlight mode | - | |
| Display Refresh Rate | - | 60 Hz | |
| Display Features | Colour temperature adjustment, Dot Drop display, Reading mode 2.0 | Dark mode, Waterdrop Screen | |
| Display Protection (Screen Protector) | Corning Gorilla Glass 3 (scratch resistant glass) | - |
| PROCESSOR | Xiaomi Redmi 9 | OPPO A15 |
|---|
| Processor Type (CPU) | MediaTek Helio G80 | MediaTek Helio P35 | |
|---|---|---|---|
| Processor Number | - | MT6765 | |
| Clock Speed | 2 GHz | 2.3 GHz | OPPO A15 has higher clock speed than Xiaomi Redmi 9. |
| Processor Core Qty | 8-core | - | |
| 64-bit Architecture | Yes | - | Xiaomi Redmi 9 has 64-bit architecture. |
| Graphics System (GPU) | Mali-G52 MC2 | IMG GE8320 |
| MEMORY | Xiaomi Redmi 9 | OPPO A15 |
|---|
| RAM | LPDDR4X SDRAM - 4 GB | LPDDR4X SDRAM - 3 GB | Xiaomi Redmi 9 has more RAM than OPPO A15. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 64 GB | 32 GB | Xiaomi Redmi 9 has more internal memory than OPPO A15. |
| Supported Flash Memory Cards (Expandable Memory) | microSD | microSDHC, microSD, microSDXC - up to 256 GB |
| CAMERA | Xiaomi Redmi 9 | OPPO A15 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 4 | 3 | |
|---|---|---|---|
| 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, Kaleidoscope | HDR, Portrait bokeh | |
| Camera Modes | Portrait mode | Panorama, Time-lapse mode, Slow motion mode, Expert Mode, Portrait, Night | |
| Light Source | Flash | LED flash | |
| Video Resolutions | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps | - | |
| Camera Features (Functions) | - | AI Triple camera, AI Scene Enhancement |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | 8 Megapixel | 2 Megapixel | Xiaomi Redmi 9 has better second camera resolution than OPPO A15. |
|---|---|---|---|
| Lens Type (2nd Camera) | Ultra wide-angle lens | - | |
| Lens Aperture (2nd Camera) | F/2.2 | F/2.4 | Xiaomi Redmi 9 has better second camera lens aperture than Xiaomi Redmi 9. |
| Lens Element Qty (2nd Camera) | - | 3-element | |
| Field of View (2nd Camera) | 118 degree(s) | - | |
| Camera Functions (2nd Camera) | - | Macro camera | |
| Camera Features (2nd Camera) | - | 4cm macro photography |
| THIRD CAMERA |
|---|
| Sensor Resolution (3rd Camera) | 5 Megapixel | 2 Megapixel | Xiaomi Redmi 9 has higher resolution third camera than OPPO A15. |
|---|---|---|---|
| Lens Aperture (3rd Camera) | F/2.4 | F/2.4 | Both phones have the same lens aperture of the third camera. |
| Lens Element Qty (3rd Camera) | - | 3-element | |
| Camera Functions (3rd Camera) | Macro camera | Depth 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) | 8 Megapixel | 5 Megapixel | Xiaomi Redmi 9 has better front camera resolution than OPPO A15. |
| Lens Aperture (Front) | F/2.0 | F/2.4 | Xiaomi Redmi 9 has better front lens aperture than Xiaomi Redmi 9. |
| Lens Element Qty (Front) | - | 3-element | |
| Field of View (Front) | 77.8 degree(s) | - | |
| Focus Adjustment | Focus free | - | |
| Special Effects (Front) | HDR | - | |
| Camera Modes (Front) | Portrait mode | - | |
| Light Source (Front) | Display flash | - | |
| Camera Features (Front) | Self-timer, Palm shutter | AI beautification |
| BATTERY AND CHARGING | Xiaomi Redmi 9 | OPPO A15 |
|---|
| Battery Capacity (Battery Size) | 5020 mAh | 4230 mAh | Xiaomi Redmi 9 has larger battery capacity than OPPO A15. |
|---|---|---|---|
| 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 | Xiaomi Redmi 9 | OPPO A15 |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
| Operating System | - | ColorOS 7.2 (based on Android 10) | |
| Navigation | GPS, A-GPS, GLONASS, BeiDou | GPS, A-GPS, GLONASS, BeiDou, Galileo |
| COMMUNICATIONS | Xiaomi Redmi 9 | OPPO A15 |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, VoLTE, FDD-LTE, TDD-LTE | 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 8 | Band 1, Band 5, Band 8 | |
| 3G UMTS Frequency | 2100, 1900, 1700, 850, 900 | 2100, 850, 900 | |
| 4G LTE Band | Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 20, Band 28, Band 38, Band 40, Band 41 | Band 1, Band 3, 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 DD, FDD 700 APT, TDD 2600, TDD 2300, TDD 2500 | FDD 2100, FDD 1800+, 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 | Wi-Fi | |
| Bluetooth | Bluetooth 5.0 | Bluetooth 5.0 | |
| Messaging Services | SMS, MMS | - |
| MEDIA | Xiaomi Redmi 9 | OPPO A15 |
|---|
| Supported Digital Audio Standards | AAC, PCM, MP3, FLAC, AAC +, eAAC+, APE (Monkey's Audio), AMR-WB, AMR-NB | AAC, apt-X, LDAC, SBC | |
|---|---|---|---|
| Supported Digital Video Standards | MKV, H.264, ASP, MP4 | - |
| FEATURES | Xiaomi Redmi 9 | OPPO A15 |
|---|
| 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, digital compass, distance sensor, infrared (IR) sensor | - | |
| Security Devices | Face recognition, fingerprint reader | Face recognition, fingerprint reader | |
| Security Technology | - | AI face unlock | |
| Additional Phone Features | Fast Charging, AI face unlock | HyperBoost 2.1 |
| OTHERS | Xiaomi Redmi 9 | OPPO A15 |
|---|
| Included Accessories | SIM card removal tool, USB-C cable, TPU case, 10W charger | Protective cover, USB cable, power adapter, SIM card removal tool |
|---|
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