In depth comparison and review of Xiaomi MI 11 and Realme C21. 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 11 | Realme C21 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Form Factor | Touch | Touch | |
| Height | 164.3 mm | 165.2 mm | Realme C21 has greater height than Xiaomi MI 11. |
| Width | 74.6 mm | 76.4 mm | Realme C21 has greater width than Xiaomi MI 11. |
| Depth | 8.06 mm | 8.9 mm | Xiaomi MI 11 is narrower than Xiaomi MI 11. |
| Weight | 196 g | 190 g | Realme C21 is lighter than Xiaomi MI 11. |
| Body Colour | Midnight grey | Horizon blue | Cross black | Cross blue | |
| Waterproof (Water-resistant) | - | - | |
| SAR Value | 0.555 W/kg (head), 1.986 W/kg (limb), 0.982 W/kg (body) | - | |
| Connector Type | USB Type-C - 24 pin USB-C | Micro-USB Headset jack - mini-phone 3.5mm |
|
| SIM Card Type (Size) | - | Nano SIM | |
| SIM Card Qty | Dual-SIM | Dual-SIM |
| DISPLAY | Xiaomi MI 11 | Realme C21 |
|---|
| Display Type | OLED display | LCD display | |
|---|---|---|---|
| Display Technology | AMOLED | LCD | |
| Screen Size (Display Size) | 6.81" | 6.5" | Xiaomi MI 11 has larger screen size than Realme C21. |
| Screen Resolution (Display Resolution) | 3200 x 1440 pixels | 1600 x 720 pixels | Xiaomi MI 11 has better screen resolution than Realme C21. |
| Display Format | WQHD+ | HD+ | |
| Pixel Density | 515 ppi | - | |
| Aspect Ratio | 20:9 | 20:9 | |
| Max Brightness | 1500 cd/m² | 420 cd/m² | Xiaomi MI 11 has better display brightness than Realme C21. |
| Colour Depth | 1.07 billion colours | - | |
| Contrast Ratio | 5000000:1 | - | |
| HDR | Yes | - | Xiaomi MI 11 has HDR. |
| HDR Technology | HDR10+ | - | |
| Display Enhancement Technology | Sunlight mode 3.0 | - | |
| Display Refresh Rate | 120 Hz | - | |
| Touch Sampling Rate | 480 Hz | - | |
| Display Features | DCI-P3 Wide colour gamut, Dot Display, True Colour, Reading mode 3, AdaptiveSync technology, Quad-curved display, AI display, DisplayMate A+, hardware-level mistouch sensor, Super Resolution technology | Mini-drop display | |
| Display Protection (Screen Protector) | Corning Gorilla Glass Victus (scratch resistant glass) | - |
| PROCESSOR | Xiaomi MI 11 | Realme C21 |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 888 | MediaTek Helio G35 | |
|---|---|---|---|
| Clock Speed | 2.84 GHz | 2.3 GHz | Xiaomi MI 11 has higher clock speed than Realme C21. |
| Processor Core Qty | 8-core | 8-core | Both phones have the same number of phone cores. |
| Graphics System (GPU) | Qualcomm ADRENO 660 | PowerVR GE8320 |
| MEMORY | Xiaomi MI 11 | Realme C21 |
|---|
| RAM | LPDDR5 SDRAM - 8 GB | LPDDR4X SDRAM - 3 GB | Xiaomi MI 11 has more RAM than Realme C21. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 128 GB | 32 GB | Xiaomi MI 11 has more internal memory than Realme C21. |
| Memory Interface | UFS 3.1 | - | |
| Supported Flash Memory Cards (Expandable Memory) | - | microSD |
| CAMERA | Xiaomi MI 11 | Realme C21 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 4 | 3 | |
|---|---|---|---|
| Sensor Resolution | 108 Megapixel | 13 Megapixel | Xiaomi MI 11 has better camera resolution than Realme C21. |
| Sensor Size | 1/1.33" | - | |
| Lens Aperture | F/1.85 | F/2.2 | Xiaomi MI 11 has better lens aperture than Xiaomi MI 11. |
| Lens Construction | - | 5-element | |
| Pixel Size | 0.8 μm | - | |
| Optical Image Stabiliser (OIS) | Optical Image Stabiliser (OIS) | - | Xiaomi MI 11 has optical stabilisation. |
| Focus Adjustment | - | Automatic | |
| Digital Zoom | - | 4x | |
| Special Effects | Cinematic video filters | HDR | |
| HDR Mode | HDR10+ video | - | |
| Camera Modes | Slow Shutter, Night Mode 2.0, AI Erase 2.0, Ultra Night Video, One-Click AI Cinema, Magic Zoom, Time Freeze, Night Time-lapse, Parallel World, Freeze Frame Video, Pro Time-lapse | Panorama, Time-lapse mode, Slow motion mode, Beauty mode, Expert Mode, Nightscape capture mode, Portrait, Filter mode, Super nightscape | |
| Light Source | LED flash | LED flash | |
| 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, 3840 x 2160 (4K) at 60 fps, Slo-mo video 1920 x 1080 (1080p) at 240 fps, 7680 x 4320 (8K) at 24 fps, 7680 x 4320 (8K) at 30fps | 1920 x 1080 (1080p) at 30 fps | |
| Camera Features (Functions) | 4-in-1 Super Pixel | Phase Detect Auto-Focus (PDAF), AI Triple camera, Chroma boost |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | 13 Megapixel | 2 Megapixel | Xiaomi MI 11 has better second camera resolution than Realme C21. |
|---|---|---|---|
| Lens Type (2nd Camera) | Ultra wide-angle lens | - | |
| Lens Aperture (2nd Camera) | F/2.4 | F/2.4 | Both phones have the same second camera lens aperture. |
| Lens Element Qty (2nd Camera) | - | 3-element | |
| Field of View (2nd Camera) | 123 degree(s) | - | |
| Camera Functions (2nd Camera) | - | B&W lens |
| THIRD CAMERA |
|---|
| Sensor Resolution (3rd Camera) | 5 Megapixel | 2 Megapixel | Xiaomi MI 11 has higher resolution third camera than Realme C21. |
|---|---|---|---|
| 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 | |
| Camera Features (3rd Camera) | AF (3cm-10cm) | 4cm macro photography |
| FOURTH CAMERA |
|---|
| Lens Type (4th Camera) | Tele-macro lens | - |
|---|
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 20 Megapixel | 5 Megapixel | Xiaomi MI 11 has better front camera resolution than Realme C21. |
| Lens Aperture (Front) | F/2.2 | F/2.2 | Both phones have the same front camera lens aperture. |
| Lens Element Qty (Front) | - | 3-element | |
| Pixel Size (Front) | 0.8 μm | - | |
| Special Effects (Front) | HDR | HDR | |
| Camera Modes (Front) | Night Selfie | Time-lapse mode, Beauty mode, portrait mode, AI Beauty, Filter mode, Panoramic mode | |
| Face Recognition (Face ID) | - | Face recognition | Realme C21 has face detection. |
| Video Resolutions (Front) | 1920 x 1080 (1080p) at 30 fps, 1920 x 1080 (1080p) at 60 fps, Slo-mo video 1280 x 720 (720p) at 120 fps | - | |
| Camera Features (Front) | 4-in-1 Super Pixel technology | - |
| BATTERY AND CHARGING | Xiaomi MI 11 | Realme C21 |
|---|
| Battery Capacity (Battery Size) | 4600 mAh | 5000 mAh | Realme C21 has larger battery capacity than Xiaomi MI 11. |
|---|---|---|---|
| Recharge Time (Charging Time) | 45 min | - | |
| Wireless Charging | Yes | - | Xiaomi MI 11 can be charged wirelessly. |
| CELLULAR | Xiaomi MI 11 | Realme C21 |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 5G | 4G | Xiaomi MI 11 has more advanced generation mobile network. |
| Operating System | Android 11 | Android 10 | |
| User Interface | MIUI 12 | Realme UI | |
| Payment Technology | Google Pay | - | |
| Navigation | GPS, GLONASS, BeiDou, Galileo | GPS, A-GPS, GLONASS, BeiDou |
| COMMUNICATIONS | Xiaomi MI 11 | Realme C21 |
|---|
| Data Transmission | FDD-LTE, TDD-LTE, 5G NR FR1 | 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 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 12, Band 17, Band 20, Band 28, Band 32, Band 38, Band 40, Band 41, Band 42, Band 66 | 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 700a, FDD 700b, FDD 800 DD, FDD 700 APT, FDD 1500 L, TDD 2600, TDD 2300, TDD 2500, TDD 3500, FDD 1700 - 2110 AWS-3 | FDD 2100, FDD 1800+, FDD 850, FDD 2600, FDD 900, FDD 800 DD, FDD 700 APT, TDD 2600, TDD 2300, TDD 2500 | |
| 5G NR Band | N1, n3, n5, n7, n8, n20, n28, n38, n41, n77, n78, n79 | - | |
| 5G NR Frequency | FDD 2100, FDD 1800, FDD 850, FDD 2600, FDD 900, FDD 800, FDD 700APT, TDD TD 2600, TDD TD 2500, TDD TD 3700, TDD TD 3500, TDD TD 4500 | - | |
| Wireless Interface | IEEE 802.11a/b/g/n/ac/ax, Infrared (IR) | IEEE 802.11b/g/n | |
| Bluetooth | Bluetooth 5.2 | Bluetooth 5.0 | |
| Modem | Snapdragon X60 5G | - |
| MEDIA | Xiaomi MI 11 | Realme C21 |
|---|
| Supported Digital Audio Standards | AAC, LDAC, LHDC | - | |
|---|---|---|---|
| Sound Enhancements | Hi-Res audio certified | - |
| FEATURES | Xiaomi MI 11 | Realme C21 |
|---|
| 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, proximity sensor, digital compass, gyroscope, 360° ambient light sensor 2.0 | Accelerometer, proximity sensor, magnetometer, light sensor | |
| Security Devices | Fingerprint reader (under display with heart rate monitoring), face recognition | Fingerprint reader | |
| Additional Phone Features | MIMO technology, AI face unlock, linear motor, 10W reverse wireless charging, dual stereo speakers tuned by Harman Kardon, X-axis linear vibration motor, Voice isolation, Qualcomm 6th generation AI Engine | Super power saving mode, HyperEngine technology, Reverse charging |
| OTHERS | Xiaomi MI 11 | Realme C21 |
|---|
| Included Accessories | SIM card removal tool, USB-C to 3.5 jack adapter, USB-C cable, soft case, 55W GaN power adapter | USB cable, power adapter, SIM card removal tool | |
|---|---|---|---|
| Compliant Standards | SGS Eye Care Display Certification | TUV Rheinland |
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