In depth comparison and review of Xiaomi MI Note 10 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 Note 10 | Realme C21 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Form Factor | Touch | Touch | |
| Height | 157.8 mm | 165.2 mm | Realme C21 has greater height than Xiaomi MI Note 10. |
| Width | 74.2 mm | 76.4 mm | Realme C21 has greater width than Xiaomi MI Note 10. |
| Depth | 9.67 mm | 8.9 mm | Realme C21 is narrower than Xiaomi MI Note 10. |
| Weight | 208 g | 190 g | Realme C21 is lighter than Xiaomi MI Note 10. |
| Body Colour | Midnight black | Glacier White | Aurora green | Cross black | Cross blue | |
| Waterproof (Water-resistant) | - | - | |
| SAR Value | 1.392 W/kg (body), 1.107 W/kg (head), 2.304 W/kg (limb) | - | |
| Connector Type | USB Type-C - 24 pin USB-C Headset jack - mini-phone 3.5mm |
Micro-USB Headset jack - mini-phone 3.5mm |
|
| SIM Card Type (Size) | Nano SIM | Nano SIM | |
| SIM Card Qty | Dual-SIM | Dual-SIM |
| DISPLAY | Xiaomi MI Note 10 | Realme C21 |
|---|
| Display Type | OLED display | LCD display | |
|---|---|---|---|
| Display Technology | AMOLED | LCD | |
| Screen Size (Display Size) | 6.47" | 6.5" | Realme C21 has larger screen size than Xiaomi MI Note 10. |
| Screen Resolution (Display Resolution) | 2340 x 1080 pixels | 1600 x 720 pixels | Xiaomi MI Note 10 has better screen resolution than Realme C21. |
| Display Format | Full HD+ | HD+ | |
| Pixel Density | 398 ppi | - | |
| Aspect Ratio | - | 20:9 | |
| Max Brightness | 600 cd/m² | 420 cd/m² | Xiaomi MI Note 10 has better display brightness than Realme C21. |
| Contrast Ratio | 400000:1 | - | |
| HDR | Yes | - | Xiaomi MI Note 10 has HDR. |
| HDR Technology | HDR10 | - | |
| Display Enhancement Technology | Sunshine mode 2.0 | - | |
| Display Features | 3D curved glass, Colour temperature adjustment, night mode, DCI-P3 Wide colour gamut, Reading mode 2.0 | Mini-drop display | |
| Display Protection (Screen Protector) | Corning Gorilla Glass 5 (scratch resistant glass) | - |
| PROCESSOR | Xiaomi MI Note 10 | Realme C21 |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 730G | MediaTek Helio G35 | |
|---|---|---|---|
| Clock Speed | 2.2 GHz | 2.3 GHz | Realme C21 has higher clock speed than Xiaomi MI Note 10. |
| Processor Core Qty | 8-core | 8-core | Both phones have the same number of phone cores. |
| 64-bit Architecture | Yes | - | Xiaomi MI Note 10 has 64-bit architecture. |
| Graphics System (GPU) | Qualcomm ADRENO 618 | PowerVR GE8320 |
| MEMORY | Xiaomi MI Note 10 | Realme C21 |
|---|
| RAM | LPDDR4X SDRAM - 6 GB | LPDDR4X SDRAM - 3 GB | Xiaomi MI Note 10 has more RAM than Realme C21. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 128 GB | 32 GB | Xiaomi MI Note 10 has more internal memory than Realme C21. |
| Supported Flash Memory Cards (Expandable Memory) | - | microSD |
| CAMERA | Xiaomi MI Note 10 | Realme C21 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 5 | 3 | |
|---|---|---|---|
| Sensor Resolution | 108 Megapixel | 13 Megapixel | Xiaomi MI Note 10 has better camera resolution than Realme C21. |
| Sensor Size | 1/1.33" | - | |
| Lens Aperture | F/1.69 | F/2.2 | Xiaomi MI Note 10 has better lens aperture than Xiaomi MI Note 10. |
| Lens Construction | - | 5-element | |
| Field of View (FoV) | 82 degree(s) | - | |
| Pixel Size | 0.8 μm | - | |
| Optical Image Stabiliser (OIS) | Optical Image Stabiliser (OIS) | - | Xiaomi MI Note 10 has optical stabilisation. |
| Focus Adjustment | Automatic | Automatic | |
| Laser Auto Focus | Yes | - | |
| Digital Zoom | - | 4x | |
| Special Effects | HDR | HDR | |
| Camera Modes | Burst mode, Panorama, Pro mode, AI Beautify, Smart ultra-wide angle mode, Photo timer, Custom watermark, Full body portrait mode, Moon mode, AI smart slimming, Night Mode 2.0, Vlog mode | Panorama, Time-lapse mode, Slow motion mode, Beauty mode, Expert Mode, Nightscape capture mode, Portrait, Filter mode, Super nightscape | |
| Face Recognition (Face ID) | Face recognition | - | Xiaomi MI Note 10 has face detection. |
| Light Source | Flash | LED flash | |
| Still Image Resolutions | 12032 x 9024 | - | |
| 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, Super slow motion video 1280 x 720 (720p) at 960 fps, Slo-mo video 1920 x 1080 (1080p) at 240 fps | 1920 x 1080 (1080p) at 30 fps | |
| Camera Features (Functions) | Phase Detect Auto-Focus (PDAF), Dynamic photos, 4-in-1 Super Pixel, AI scene detection, AI studio lighting, 960 fps Smart audio pairing, AI lens flare, Portrait mode background blur adjustment, Ultra wide-angle edge distortion correction, Group photo face correction, Portrait mode background blurring, Motion tracking, Steady handheld night photography, levelling, AI rear penta camera, AI high-resolution photos, short video editing, Contrast detection focus | Phase Detect Auto-Focus (PDAF), AI Triple camera, Chroma boost |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | 12 Megapixel | 2 Megapixel | Xiaomi MI Note 10 has better second camera resolution than Realme C21. |
|---|---|---|---|
| Lens Aperture (2nd Camera) | F/2.0 | F/2.4 | Xiaomi MI Note 10 has better second camera lens aperture than Xiaomi MI Note 10. |
| Lens Element Qty (2nd Camera) | - | 3-element | |
| Pixel Size (2nd Camera) | 1.4 μm | - | |
| Optical Zoom | 2x | - | |
| Camera Functions (2nd Camera) | Potrait camera | B&W lens |
| THIRD CAMERA |
|---|
| Sensor Resolution (3rd Camera) | 20 Megapixel | 2 Megapixel | Xiaomi MI Note 10 has higher resolution third camera than Realme C21. |
|---|---|---|---|
| Sensor Size (3rd Camera) | 1/3" | - | |
| Lens Type (3rd Camera) | Ultra wide-angle lens | - | |
| Lens Aperture (3rd Camera) | F/2.2 | F/2.4 | Xiaomi MI Note 10 has better third camera lens aperture than Xiaomi MI Note 10. |
| Lens Element Qty (3rd Camera) | 5-element | 3-element | |
| Field of View (3rd Camera) | 117 degree(s) | - | |
| Pixel Size (3rd Camera) | 1.12 μm | - | |
| Camera Functions (3rd Camera) | - | Macro camera | |
| Camera Features (3rd Camera) | Autofocus | 4cm macro photography |
| FOURTH CAMERA |
|---|
| Sensor Resolution (4th Camera) | 5 Megapixel | - | |
|---|---|---|---|
| Lens Type (4th Camera) | Telephoto lens | - | |
| Lens Aperture (4th Camera) | F/2.0 | - | |
| Optical Image Stabiliser (OIS) | Optical Image Stabiliser (OIS) | - | Xiaomi MI Note 10 has optical stabilisation of the fourth camera. |
| Digital Zoom | 50x | - | |
| Hybrid Zoom | 10x | - |
| FIFTH CAMERA |
|---|
| Sensor Resolution (5th Camera) | 2 Megapixel | - | |
|---|---|---|---|
| Pixel Size (5th Camera) | 1.75 μm | - | |
| Camera Functions (5th Camera) | Macro camera | - | |
| Camera Features (5th Camera) | Autofocus | - |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 32 Megapixel | 5 Megapixel | Xiaomi MI Note 10 has better front camera resolution than Realme C21. |
| Lens Aperture (Front) | F/2.0 | F/2.2 | Xiaomi MI Note 10 has better front lens aperture than Xiaomi MI Note 10. |
| Lens Element Qty (Front) | - | 3-element | |
| Pixel Size (Front) | 1.6 μm | - | |
| Special Effects (Front) | HDR, Magic mirror | HDR | |
| Camera Modes (Front) | Selfie panorama, AI Beautify | Time-lapse mode, Beauty mode, portrait mode, AI Beauty, Filter mode, Panoramic mode | |
| Face Recognition (Face ID) | Face recognition | Face recognition | Both phones have face detection. |
| Video Resolutions (Front) | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps | - | |
| Camera Features (Front) | AI portrait mode, age recognition, 4-in-1 Super Pixel technology, AI scene detection, AI studio lighting, Eye light, AI feature adjustment, Palm shutter, AI silhouette detection, wide-angle distortion correction, camera display brightness correction | - |
| BATTERY AND CHARGING | Xiaomi MI Note 10 | Realme C21 |
|---|
| Battery Capacity (Battery Size) | 5260 mAh | 5000 mAh | Xiaomi MI Note 10 has larger battery capacity than Realme C21. |
|---|---|---|---|
| Recharge Time (Charging Time) | 65 min | - | |
| Battery Technology | Lithium polymer | - |
| CELLULAR | Xiaomi MI Note 10 | Realme C21 |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
| Operating System | - | Android 10 | |
| User Interface | MIUI 11 | Realme UI | |
| Payment Technology | Google Pay | - | |
| Navigation | GPS, A-GPS, GLONASS, BeiDou, Galileo | GPS, A-GPS, GLONASS, BeiDou |
| COMMUNICATIONS | Xiaomi MI Note 10 | Realme C21 |
|---|
| 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 | 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 5, Band 8 | |
| 3G UMTS Frequency | 2100, 1900, 1700, 850, 800, 900, 800 | 2100, 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 40 | 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 lower, FDD 800 upper, FDD 800 DD, FDD 850+, FDD 700 APT, TDD 2600, TDD 2300 | 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 802.11b/g/n | |
| Bluetooth | Bluetooth 5.0 | Bluetooth 5.0 | |
| NFC | Yes | - | Xiaomi MI Note 10 has NFC reader for mobile payments. |
| Messaging Services | SMS, MMS | - |
| MEDIA | Xiaomi MI Note 10 | Realme C21 |
|---|
| Supported Digital Audio Standards | WAV, AAC, AMR, MP3, apt-X, LDAC, apt-X HD | - | |
|---|---|---|---|
| Supported Digital Video Standards | MKV, VC-1, XviD, MPEG-4, H.264, M4V, HEVC, VP8, VP9 | - | |
| Sound Enhancements | Hi-Fi Sound support, Hi-Res audio | - | |
| Audio Amplifier | Smart PA | - |
| FEATURES | Xiaomi MI Note 10 | 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, ambient light sensor, digital compass, gyro sensor | Accelerometer, proximity sensor, magnetometer, light sensor | |
| Security Devices | Fingerprint reader (under display), face recognition | Fingerprint reader | |
| Additional Phone Features | Infrared remote control, Fast Charging, Gaming Toolbox 2.0, Mi Share | Super power saving mode, HyperEngine technology, Reverse charging |
| OTHERS | Xiaomi MI Note 10 | Realme C21 |
|---|
| Included Accessories | Protective cover, SIM card removal tool, USB-C cable, 30W fast charger | USB cable, power adapter, SIM card removal tool | |
|---|---|---|---|
| Compliant Standards | TUV Rheinland Low Blue Light Certification | TUV Rheinland |
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