Detailed comparison and review of Xiaomi Redmi Note 11 and OPPO A57s. With our comprehensive overview, you can simply compare sizes, functions, but also other key features of both phones and easily decide which one is the right choice for you. Our goal is to help you identify the main differences between products and find the phone that best fits your needs and expectations.
| DESIGN AND DIMENSIONS | Xiaomi Redmi Note 11 | OPPO A57s |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | - | CPH2385 | |
| Form Factor | Touch | Touch | |
| Height | 159.87 mm | 163.74 mm | OPPO A57s has greater height than Xiaomi Redmi Note 11. |
| Width | 73.87 mm | 75.03 mm | OPPO A57s has greater width than Xiaomi Redmi Note 11. |
| Depth | 8.09 mm | 7.99 mm | OPPO A57s is narrower than Xiaomi Redmi Note 11. |
| Weight | 179 g | 187 g | Xiaomi Redmi Note 11 is lighter than Xiaomi Redmi Note 11. |
| Body Colour | Twilight blue | Blue star | Graphite grey | Starry black | |
| Body Material | - | Composite polymer | |
| Protection | Dustproof, splashproof | - | |
| Waterproof (Water-resistant) | - | - | OPPO A57s is waterproof. |
| IP rating | IP53 | IPX4 | |
| SAR Value | 0.989 W/kg (body), 0.596 W/kg (head), 1.996 W/kg (limb) | 1.015 W/kg (body), 0.957 W/kg (head), 2.399 W/kg (limb) | |
| Connector Type | USB Type-C - 24 pin USB-C Headset jack - mini-phone 3.5mm |
Headset jack - mini-phone 3.5mm USB Type-C - 24 pin USB-C |
|
| SIM Card Type (Size) | - | Nano SIM | |
| SIM Card Qty | Dual-SIM | Dual-SIM | |
| SIM Card Configuration Details | - | Nano SIM + nano SIM/microSD |
| DISPLAY | Xiaomi Redmi Note 11 | OPPO A57s |
|---|
| Display Type | OLED display | LCD display | |
|---|---|---|---|
| Display Technology | AMOLED | LCD | |
| Screen Size (Display Size) | 6.43" | 6.56" | OPPO A57s has larger screen size than Xiaomi Redmi Note 11. |
| Screen Resolution (Display Resolution) | 2400 x 1080 pixels | 1612 x 720 pixels | Xiaomi Redmi Note 11 has better screen resolution than OPPO A57s. |
| Display Format | Full HD+ | HD+ | |
| Pixel Density | 409 ppi | 269 ppi | Xiaomi Redmi Note 11 has better pixel density than OPPO A57s. |
| Aspect Ratio | - | 20.1:9 | |
| Max Brightness | 1000 cd/m² | 600 cd/m² | Xiaomi Redmi Note 11 has better display brightness than OPPO A57s. |
| Colour Depth | - | 16.7 million colours | |
| Contrast Ratio | 4500000:1 | 1500:1 | Xiaomi Redmi Note 11 has better display contrast ratio than OPPO A57s. |
| Display Enhancement Technology | Sunlight mode, Reading mode 3.0 | - | |
| Display Refresh Rate | 90 Hz | 60 Hz | Xiaomi Redmi Note 11 has better refresh rate than OPPO A57s. |
| Touch Sampling Rate | 180 Hz | 60 Hz | |
| Display Features | DCI-P3 Wide colour gamut, Dot Display | Night mode, Eye comfort mode, 96% NTSC | |
| Display Protection (Screen Protector) | - | Panda Glass MN228 |
| PROCESSOR | Xiaomi Redmi Note 11 | OPPO A57s |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 680 | MediaTek Helio G35 | |
|---|---|---|---|
| Clock Speed | 2.4 GHz | 2.3 GHz | Xiaomi Redmi Note 11 has higher clock speed than OPPO A57s. |
| Processor Core Qty | 8-core | 8-core | Both phones have the same number of phone cores. |
| Graphics System (GPU) | Qualcomm ADRENO 610 | IMG GE8320 |
| MEMORY | Xiaomi Redmi Note 11 | OPPO A57s |
|---|
| RAM | LPDDR4X SDRAM - 4 GB | LPDDR4X SDRAM - 4 GB | Both phones have the same RAM size. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 128 GB | 128 GB | Both phones have the same internal memory capacity. |
| Memory Interface | UFS 2.2 | eMMC 5.1 | |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSD, microSDXC - up to 1 TB | microSDHC, microSD, microSDXC - up to 1 TB |
| CAMERA | Xiaomi Redmi Note 11 | OPPO A57s |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 4 | 2 | |
|---|---|---|---|
| Sensor Resolution | 50 Megapixel | 50 Megapixel | Both phones have the same camera resolution. |
| Sensor Size | - | 1/2.76" | |
| Sensor Name | - | Samsung S5KJN1 | |
| Lens Aperture | F/1.8 | F/1.8 | Both phones have the same camera lens aperture. |
| Lens Construction | - | 5-element | |
| Field of View (FoV) | - | 77 degree(s) | |
| Pixel Size | - | 0.64 μm | |
| Focus Adjustment | Automatic | Automatic | |
| Minimum Focal Length (Focal Distance) | - | 27 mm | |
| Digital Zoom | - | 5x | |
| Special Effects | - | Stickers | |
| Camera Modes | - | Panorama, Time-lapse mode, Pro mode, Portrait, Night | |
| Light Source | LED flash | LED flash | |
| Video Resolutions | 1920 x 1080 (1080p) at 30 fps, 3840 x 2160 (4K) at 30 fps | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps | |
| Camera Features (Functions) | AI Quad camera | - |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | 8 Megapixel | 2 Megapixel | Xiaomi Redmi Note 11 has better second camera resolution than OPPO A57s. |
|---|---|---|---|
| Sensor Size (2nd Camera) | - | 1/5" | |
| Lens Type (2nd Camera) | Ultra wide-angle lens | - | |
| Lens Aperture (2nd Camera) | F/2.2 | F/2.4 | Xiaomi Redmi Note 11 has better second camera lens aperture than Xiaomi Redmi Note 11. |
| Lens Element Qty (2nd Camera) | - | 3-element | |
| Field of View (2nd Camera) | 118 degree(s) | 89 degree(s) | Xiaomi Redmi Note 11 has larger second camera lens field of view than OPPO A57s. |
| Pixel Size (2nd Camera) | - | 1.75 μm | |
| Minimum Focal Length (2nd Camera) | - | 21 mm | |
| Camera Functions (2nd Camera) | - | Monochrome |
| THIRD CAMERA |
|---|
| Sensor Resolution (3rd Camera) | 2 Megapixel | - | |
|---|---|---|---|
| Lens Aperture (3rd Camera) | F/2.4 | - | |
| Camera Functions (3rd Camera) | Macro camera | - |
| FOURTH CAMERA |
|---|
| Sensor Resolution (4th Camera) | 2 Megapixel | - | |
|---|---|---|---|
| Lens Aperture (4th Camera) | F/2.4 | - | |
| Camera Functions (4th Camera) | Depth camera | - |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 13 Megapixel | 8 Megapixel | Xiaomi Redmi Note 11 has better front camera resolution than OPPO A57s. |
| Sensor Size (Front) | - | 1/1.4" | |
| Sensor Name (Front) | - | Omnivision OV08D10 sensor | |
| Lens Aperture (Front) | F/2.4 | F/2.0 | OPPO A57s has better front lens aperture than Xiaomi Redmi Note 11. |
| Lens Element Qty (Front) | - | 5-element | |
| Field of View (Front) | - | 79 degree(s) | |
| Pixel Size (Front) | - | 1.12 μm | |
| Focus Adjustment | - | Focus free | |
| Min Focal Length (Front) | - | 26 mm | |
| Special Effects (Front) | - | Stickers | |
| Camera Modes (Front) | - | Panorama, Time-lapse mode, Portrait | |
| Video Resolutions (Front) | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps |
| BATTERY AND CHARGING | Xiaomi Redmi Note 11 | OPPO A57s |
|---|
| Battery Capacity (Battery Size) | 5000 mAh | 5000 mAh | Both phones have the same battery capacity. |
|---|---|---|---|
| Fast Charging Technology | Pro fast charging | SuperVOOC Flash Charge technology | Both phones have fast charging technology. |
| Standby Time | - | 304 hours | |
| Talk Time | 2580 minutes | 1800 minutes | Xiaomi Redmi Note 11 has longer battery life when making calls than OPPO A57s. |
| Run Time Details | Talk: up to 2580 min Playback (video): up to 22 hrs Playback (audio): up to 215 hrs |
Talk: up to 1800 min Standby (4G): up to 304 hrs Playback (video): up to 13.4 hrs Playback (audio (via speakers, 50% volume)): up to 40 hrs |
| CELLULAR | Xiaomi Redmi Note 11 | OPPO A57s |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
| Operating System | Android 11 | ColorOS 12.1 (based on Android 12) | |
| User Interface | MIUI 13 | - | |
| Navigation | GPS, GLONASS, BeiDou, Galileo | GPS, A-GPS, GLONASS, BeiDou, Galileo, QZSS |
| COMMUNICATIONS | Xiaomi Redmi Note 11 | OPPO A57s |
|---|
| Data Transmission | FDD-LTE, TDD-LTE | VoLTE, FDD-LTE, TDD-LTE, VoWiFi | |
|---|---|---|---|
| 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 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 32, 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, FDD 1500 L, 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 802.11a/b/g/n/ac | IEEE 802.11a/b/g/n/ac | |
| Bluetooth | Bluetooth 5.0 | Bluetooth 5.3 BLE | |
| NFC | Yes | Yes | Both phones have an NFC reader for mobile payments. |
| MEDIA | Xiaomi Redmi Note 11 | OPPO A57s |
|---|
| Supported Digital Audio Standards | - | WAV, WMA, AAC, AMR, MP3, FLAC, AC-3, OGG, MIDI, APE (Monkey's Audio), LDAC, OPUS, MID, SBC, apt-X HD | |
|---|---|---|---|
| Supported Digital Video Standards | - | MKV, FLV, AVI, MOV, ASF, 3GP, M4V, TS, M2TS, WebM, MP4 | |
| Sound Enhancements | Hi-Res audio certified | Dirac sound technologies |
| FEATURES | Xiaomi Redmi Note 11 | OPPO A57s |
|---|
| Sensors | Accelerometer, ambient light sensor, proximity sensor, digital compass, gyroscope | Accelerometer, proximity sensor, magnetometer, gravity sensor, brightness sensor | |
|---|---|---|---|
| Security Devices | Face recognition, fingerprint reader (side) | Face recognition, fingerprint reader (side) | |
| Security Technology | AI face unlock | - | |
| Additional Phone Features | Z-axis linear vibration motor, dual stereo speakers, IR blaster, write booster | Noise reduction microphone, Fast Charging, 3 years of Security Updates, 2 years of OS upgrades, Cooling Graphite Thermal Pad, Reverse charging, super-linear dual speakers |
| OTHERS | Xiaomi Redmi Note 11 | OPPO A57s |
|---|
| Included Accessories | Power adapter, SIM card removal tool, USB-C cable, protective case | SIM card removal tool, USB-C charging cable, protective film, SuperVOOC 33W power adapter | |
|---|---|---|---|
| Compliant Standards | IP53, TUV SUD, SGS, IEC 60529 | IPX4 |
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