Side by side comparison and review of OPPO R11s and Xiaomi Redmi Note 9S. 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 R11s | Xiaomi Redmi Note 9S |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Form Factor | Touch | Touch | |
| Height | 155.1 mm | 165.75 mm | Xiaomi Redmi Note 9S has greater height than OPPO R11s. |
| Width | 75.5 mm | 76.68 mm | Xiaomi Redmi Note 9S has greater width than OPPO R11s. |
| Depth | 7.1 mm | 8.8 mm | OPPO R11s is narrower than OPPO R11s. |
| Weight | 153 g | 209 g | OPPO R11s is lighter than OPPO R11s. |
| Body Colour | Champagne | Aurora blue | |
| Body Material | Aluminium | Curved 3D glass, Gorilla glass 5 | |
| Protection | - | Dustproof, splashproof | |
| Waterproof (Water-resistant) | - | - | |
| SAR Value | - | 0.98 W/kg (body), 0.72 W/kg (head), 2.35 W/kg (limb) | |
| Integrated Components | - | Ultra-linear speakers | |
| Connector Type | 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 | Dual-SIM | Dual-SIM | |
| SIM Card Configuration Details | - | Nano SIM + nano SIM/microSD |
| DISPLAY | OPPO R11s | Xiaomi Redmi Note 9S |
|---|
| Display Type | OLED display | LCD display | |
|---|---|---|---|
| Display Technology | AMOLED | - | |
| Screen Size (Display Size) | 6.01" | 6.67" | Xiaomi Redmi Note 9S has larger screen size than OPPO R11s. |
| Screen Resolution (Display Resolution) | 2160 x 1080 pixels | 2400 x 1080 pixels | Xiaomi Redmi Note 9S has better screen resolution than OPPO R11s. |
| Display Format | - | Full HD+ | |
| Aspect Ratio | 18:9 | - | |
| Colour Depth | 16.7 million colours | - | |
| Contrast Ratio | - | 1500:1 | |
| HDR | - | Yes | Xiaomi Redmi Note 9S has HDR. |
| Display Features | - | Reading mode 2.0, Dot Display | |
| Display Protection (Screen Protector) | - | Corning Gorilla Glass 5 (scratch resistant glass) |
| PROCESSOR | OPPO R11s | Xiaomi Redmi Note 9S |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 660 | Qualcomm Snapdragon 720G | |
|---|---|---|---|
| Clock Speed | 2.2 GHz | 2.3 GHz | Xiaomi Redmi Note 9S has higher clock speed than OPPO R11s. |
| Processor Core Qty | 8-core | 8-core | Both phones have the same number of phone cores. |
| 64-bit Architecture | - | Yes | Xiaomi Redmi Note 9S has 64-bit architecture. |
| Graphics System (GPU) | Qualcomm ADRENO 512 | Qualcomm ADRENO 618 |
| MEMORY | OPPO R11s | Xiaomi Redmi Note 9S |
|---|
| RAM | 4 GB | 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 | microSDHC, microSDXC - up to 512 GB |
| CAMERA | OPPO R11s | Xiaomi Redmi Note 9S |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 2 | 4 | |
|---|---|---|---|
| Sensor Resolution | 20 Megapixel | 48 Megapixel | Xiaomi Redmi Note 9S has better camera resolution than OPPO R11s. |
| Sensor Size | - | 1/2" | |
| Lens Aperture | F/1.7 | F/1.79 | OPPO R11s has better lens aperture than OPPO R11s. |
| Lens Construction | - | 6-element | |
| Field of View (FoV) | - | 79 degree(s) | |
| Pixel Size | - | 0.8 μm | |
| Focus Adjustment | Automatic | Automatic | |
| Special Effects | Bokeh effect | HDR, Kaleidoscope | |
| Camera Modes | - | Burst mode, Panorama, night mode, Smart ultra-wide angle mode, Photo timer, Custom watermark, Documents, Beautify, Levelling, Cinematic portraits | |
| Face Recognition (Face ID) | - | Face recognition | Xiaomi Redmi Note 9S has face detection. |
| Light Source | LED flash | Dual LED flash | |
| Still Image Resolutions | - | 8000 x 6000 | |
| Video Resolutions | - | 1920 x 1080 (1080p) at 30 fps, 1920 x 1080 (1080p) at 60 fps, 1280 x 720 (720p) at 30 fps, Slo-mo video 1920 x 1080 (1080p) at 120 fps, Slo-mo video 1280 x 720 (720p) at 240 fps, 3840 x 2160 (4K) at 30 fps, Slo-mo video 1280 x 720 (720p) at 120 fps, Slo-mo video 1280 x 720 (720p) at 960 fps | |
| Camera Features (Functions) | OPPO Portrait Lab | 4-in-1 Super Pixel, AI scene detection, Portrait mode with background blurring, Ultra wide-angle edge distortion correction, Steady handheld night photography, full screen frame, AI watermark |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | 16 Megapixel | 8 Megapixel | OPPO R11s has better second camera resolution than Xiaomi Redmi Note 9S. |
|---|---|---|---|
| Lens Type (2nd Camera) | - | Ultra wide-angle lens | |
| Lens Aperture (2nd Camera) | - | F/2.2 | |
| Field of View (2nd Camera) | - | 119 degree(s) | |
| Pixel Size (2nd Camera) | - | 1.12 μm |
| THIRD CAMERA |
|---|
| Sensor Resolution (3rd Camera) | - | 5 Megapixel | |
|---|---|---|---|
| Lens Aperture (3rd Camera) | - | F/2.4 | |
| Pixel Size (3rd Camera) | - | 1.12 μm | |
| Camera Functions (3rd Camera) | - | Macro camera | |
| Camera Features (3rd Camera) | - | AF (2cm-10cm) |
| FOURTH CAMERA |
|---|
| Sensor Resolution (4th Camera) | - | 2 Megapixel | |
|---|---|---|---|
| Lens Aperture (4th Camera) | - | F/2.4 | |
| Pixel Size (4th Camera) | - | 1.75 μm | |
| Camera Functions (4th Camera) | - | Depth camera |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 20 Megapixel | 16 Megapixel | OPPO R11s has better front camera resolution than Xiaomi Redmi Note 9S. |
| Lens Aperture (Front) | F/2.0 | F/2.48 | OPPO R11s has better front lens aperture than OPPO R11s. |
| Pixel Size (Front) | - | 1 μm | |
| Special Effects (Front) | - | HDR | |
| Camera Modes (Front) | - | Panoramic selfies, AI portrait mode, AI Beautify, Slo-mo Selfie | |
| Face Recognition (Face ID) | - | Face recognition | Xiaomi Redmi Note 9S has face detection. |
| Light Source (Front) | - | Display flash | |
| Camera Features (Front) | A.I. beauty recognition technology | AI scene detection, Palm shutter, AI silhouette detection |
| BATTERY AND CHARGING | OPPO R11s | Xiaomi Redmi Note 9S |
|---|
| Battery Capacity (Battery Size) | 3205 mAh | 5020 mAh | Xiaomi Redmi Note 9S has larger battery capacity than OPPO R11s. |
|---|---|---|---|
| Fast Charging Technology | VOOC Flash Charge technology | - | OPPO R11s has fast charging technology. |
| Talk Time | - | 1980 minutes | |
| Run Time Details | - | Talk: up to 1980 min Gaming: up to 13 hrs Playback (Music): up to 147 hrs Navigation: up to 16 hrs |
|
| Battery Technology | - | Lithium Ion |
| CELLULAR | OPPO R11s | Xiaomi Redmi Note 9S |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
| Operating System | ColorOS 3.2 (based on Android 7.1) | - | |
| User Interface | - | MIUI 10 | |
| Payment Technology | - | Google Pay | |
| Navigation | GPS | GPS, A-GPS, GLONASS, BeiDou, Galileo |
| COMMUNICATIONS | OPPO R11s | Xiaomi Redmi Note 9S |
|---|
| 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 | 850 GSM, 900 GSM, 1900 GSM, 2100 GSM | |
| 3G UMTS Band | - | Band 1, Band 2, Band 4, Band 5, Band 8 | |
| 3G UMTS Frequency | - | 2100, 1900, 1700, 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 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 | |
| 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 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 | |
| Wireless Interface | IEEE 802.11a/b/g/n/ac | IEEE 802.11a/b/g/n/ac | |
| Bluetooth | Bluetooth 4.2 | Bluetooth 5.0 | |
| Messaging Services | SMS, MMS | SMS, MMS |
| MEDIA | OPPO R11s | Xiaomi Redmi Note 9S |
|---|
| Supported Digital Audio Standards | - | WAV, AAC, AMR, MP3, FLAC, APE (Monkey's Audio), MP4 | |
|---|---|---|---|
| Supported Digital Video Standards | - | MKV, XviD, M4V, MP4 | |
| Audio Amplifier | - | Smart PA |
| FEATURES | OPPO R11s | Xiaomi Redmi Note 9S |
|---|
| 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 | Ambient light sensor, proximity sensor, digital compass, gyro sensor, G-sensor | Accelerometer, digital compass, gyro sensor, distance sensor, infrared (IR) sensor, In-screen ambient light sensor | |
| Security Devices | Face recognition | Face recognition, fingerprint reader (side) | |
| Security Technology | A.I. face recognition | A.I. face recognition | |
| Additional Phone Features | MIMO technology, Smart Power Saving Mode, Split Screen, OPPO Share | Infrared remote control, AI face unlock, Qualcomm 5th generation AI Engine, Z-axis linear vibration motor |
| OTHERS | OPPO R11s | Xiaomi Redmi Note 9S |
|---|
| Included Accessories | Headset, carrying case, USB cable, power adapter, SIM card removal tool | Protective cover, SIM card removal tool, USB-C cable, 18W charger | |
|---|---|---|---|
| Compliant Standards | - | TUV Rheinland |
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