In depth comparison and review of Realme C21 and Realme 6i. 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 | Realme C21 | Realme 6i |
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Product Type | Smartphone | Smartphone | |
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Form Factor | Touch | Touch | |
Height | 165.2 mm | 164.4 mm | Realme C21 has greater height than Realme 6i. |
Width | 76.4 mm | 75.4 mm | Realme C21 has greater width than Realme 6i. |
Depth | 8.9 mm | 9 mm | Realme C21 is narrower than Realme C21. |
Weight | 190 g | 199 g | Realme C21 is lighter than Realme C21. |
Body Colour | Cross black | Cross blue | Milk white | |
Waterproof (Water-resistant) | - | - | |
SAR Value | - | 0.59 W/kg (body), 1.14 W/kg (head) | |
Connector Type | Micro-USB 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 |
DISPLAY | Realme C21 | Realme 6i |
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Display Type | LCD display | - | |
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Display Technology | LCD | - | |
Screen Size (Display Size) | 6.5" | 6.5" | Both phones have the same screen size. |
Screen Resolution (Display Resolution) | 1600 x 720 pixels | 1600 x 720 pixels | Both phones have the same screen resolution. |
Display Format | HD+ | HD+ | |
Aspect Ratio | 20:9 | 20:9 | |
Max Brightness | 420 cd/m² | - | |
Display Features | Mini-drop display | Eye Care, Mini-drop display | |
Display Protection (Screen Protector) | - | Corning Gorilla Glass 3 (scratch resistant glass) |
PROCESSOR | Realme C21 | Realme 6i |
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Processor Type (CPU) | MediaTek Helio G35 | MediaTek Helio G80 | |
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Clock Speed | 2.3 GHz | 2 GHz | Realme C21 has higher clock speed than Realme 6i. |
Processor Core Qty | 8-core | 8-core | Both phones have the same number of phone cores. |
Graphics System (GPU) | PowerVR GE8320 | Mali-G52 |
MEMORY | Realme C21 | Realme 6i |
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RAM | LPDDR4X SDRAM - 3 GB | LPDDR4X SDRAM - 4 GB | Realme 6i has more RAM than Realme C21. |
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Internal Memory Size (Storage Capacity) | 32 GB | 128 GB | Realme 6i has more internal memory than Realme C21. |
Supported Flash Memory Cards (Expandable Memory) | microSD | microSD |
CAMERA | Realme C21 | Realme 6i |
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MAIN CAMERA |
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Number of Main Cameras | 3 | 4 | |
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Sensor Resolution | 13 Megapixel | 48 Megapixel | Realme 6i has better camera resolution than Realme C21. |
Lens Aperture | F/2.2 | F/1.8 | Realme 6i has better lens aperture than Realme C21. |
Lens Construction | 5-element | - | |
Focus Adjustment | Automatic | Automatic | |
Digital Zoom | 4x | - | |
Special Effects | HDR | - | |
Camera Modes | 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 30 fps, 1280 x 720 (720p) at 30 fps | |
Camera Features (Functions) | Phase Detect Auto-Focus (PDAF), AI Triple camera, Chroma boost | AI Quad camera |
SECOND CAMERA |
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Sensor Resolution (2nd Camera) | 2 Megapixel | 8 Megapixel | Realme 6i has better second camera resolution than Realme C21. |
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Lens Type (2nd Camera) | - | Ultra wide-angle lens | |
Lens Aperture (2nd Camera) | F/2.4 | F/2.3 | Realme 6i has better second camera lens aperture than Realme C21. |
Lens Element Qty (2nd Camera) | 3-element | - | |
Field of View (2nd Camera) | - | 119 degree(s) | |
Camera Functions (2nd Camera) | B&W lens | - |
THIRD CAMERA |
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Sensor Resolution (3rd Camera) | 2 Megapixel | - | |
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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 | Potrait camera | |
Camera Features (3rd Camera) | 4cm macro photography | B&W Portrait lens |
FOURTH CAMERA |
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Sensor Resolution (4th Camera) | - | 2 Megapixel | |
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Lens Aperture (4th Camera) | - | F/2.4 | |
Camera Functions (4th Camera) | - | Macro camera | |
Camera Features (4th Camera) | - | 4cm macro photography |
FRONT CAMERA |
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Number of Front Cameras | 1 | 1 | |
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Sensor Resolution (Front) | 5 Megapixel | 16 Megapixel | Realme 6i has better front camera resolution than Realme C21. |
Lens Aperture (Front) | F/2.2 | F/2.0 | Realme 6i has better front lens aperture than Realme C21. |
Lens Element Qty (Front) | 3-element | - | |
Special Effects (Front) | HDR | - | |
Camera Modes (Front) | Time-lapse mode, Beauty mode, portrait mode, AI Beauty, Filter mode, Panoramic mode | AI Beauty | |
Face Recognition (Face ID) | Face recognition | Face recognition | Both phones have face detection. |
BATTERY AND CHARGING | Realme C21 | Realme 6i |
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Battery Capacity (Battery Size) | 5000 mAh | 5000 mAh | Both phones have the same battery capacity. |
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Standby Time | - | 936 hours | |
Talk Time | - | 1758 minutes | |
Run Time Details | - | Standby: up to 936 hrs Talk: up to 1758 min Playback (Music): up to 54.7 hrs Continuous viewing (YouTube): up to 20.6 hrs Continuous viewing (Instagram): up to 19.7 hrs |
CELLULAR | Realme C21 | Realme 6i |
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Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
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Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
Operating System | Android 10 | Android 10 | |
User Interface | Realme UI | Realme UI | |
Navigation | GPS, A-GPS, GLONASS, BeiDou | GPS, A-GPS, GLONASS, BeiDou |
COMMUNICATIONS | Realme C21 | Realme 6i |
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Data Transmission | FDD-LTE, TDD-LTE | FDD-LTE, TDD-LTE | |
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2G Band | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | |
3G UMTS Band | Band 1, Band 5, Band 8 | Band 1, Band 2, Band 4, Band 5, Band 8 | |
3G UMTS Frequency | 2100, 850, 900 | 2100, 1900, 1700, 850, 900 | |
4G LTE Band | Band 1, Band 3, Band 5, Band 7, Band 8, Band 20, Band 28, Band 38, 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, Band 41 | |
4G LTE Frequency | FDD 2100, FDD 1800+, FDD 850, FDD 2600, FDD 900, FDD 800 DD, FDD 700 APT, TDD 2600, 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, TDD 2500 | |
Wireless Interface | IEEE 802.11b/g/n | IEEE 802.11b/g/n | |
Bluetooth | Bluetooth 5.0 | Bluetooth 5.0 | |
NFC | - | Yes | Realme 6i has NFC reader for mobile payments. |
FEATURES | Realme C21 | Realme 6i |
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Phone Functions | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | - | |
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Sensors | Accelerometer, proximity sensor, magnetometer, light sensor | Accelerometer, ambient light sensor, proximity sensor, magnetometer, gyro sensor | |
Security Devices | Fingerprint reader | - | |
Additional Phone Features | Super power saving mode, HyperEngine technology, Reverse charging | - |
OTHERS | Realme C21 | Realme 6i |
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Included Accessories | USB cable, power adapter, SIM card removal tool | SIM card removal tool, USB-C cable, protective case, 18W charger, protective film | |
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Compliant Standards | TUV Rheinland | - |