View the manual for the Realme C21 here, for free. This manual comes under the category phones and has been rated by 37 people with an average of a 8.4. This manual is available in the following languages: English. Do you have a question about the Realme C21 or do you need help? Ask your question here




The Realme C21 is a phone available in the color Cross Black. It features a 6.5-inch display with a resolution of 1600 x 720 pixels, providing a clear and detailed visual experience. The display is also equipped with a capacitive touchscreen, allowing for easy and responsive navigation. With a brightness of 400 cd/m², the screen offers good visibility even in bright lighting conditions. The phone has rounded display corners, adding a sleek and modern touch to its design. Powered by a MediaTek Helio G35 processor, the Realme C21 offers reliable performance. With 8 processor cores and a boost frequency of 2.3 GHz, it can handle various tasks efficiently. The phone is equipped with 4 GB of RAM, ensuring smooth multitasking and speedy performance. Additionally, it provides ample storage capacity with its 64 GB internal storage, allowing users to store their files, apps, and media without any hassle. The Realme C21 features LPDDR4X RAM, which provides improved power efficiency and faster data transfer rates compared to previous generations. This enhances the overall performance and responsiveness of the device. The phone also boasts a long-lasting battery life, ensuring extended usage without the need for frequent charging. Overall, the Realme C21 is a reliable and efficient phone that offers a smooth user experience. With its vibrant display, powerful processor, ample storage, and durable construction, it provides a solid option for those seeking a budget-friendly yet capable device.


| Brand | Realme |
| Model | C21 | 6941399038011 |
| Product | phone |
| EAN | 6941399038011 |
| Language | English |
| Filetype | User manual (PDF) |
| Color name | Cross Black |
| Form factor | Bar |
| Product color | Black |
| Display diagonal | 6.5 " |
| Display resolution | 1600 x 720 pixels |
| Display brightness | 400 cd/m² |
| Touchscreen type | Capacitive |
| Rounded display corners | Yes |
| Screen shape | Flat |
| Panel type | IPS |
| Touchscreen | Yes |
| Processor frequency | - GHz |
| Processor family | MediaTek |
| Processor model | Helio G35 |
| Processor cores | 8 |
| Processor boost frequency | 2.3 GHz |
| RAM capacity | 4 GB |
| Internal storage capacity | 64 GB |
| RAM type | LPDDR4X |
| Compatible memory cards | MicroSD (TransFlash) |
| Rear camera type | Triple camera |
| Rear camera resolution (numeric) | 13 MP |
| Second rear camera resolution (numeric) | 2 MP |
| Third rear camera resolution (numeric) | 2 MP |
| Rear camera aperture number | 2.2 |
| Second rear camera aperture number | 2.4 |
| Third rear camera aperture number | 2.4 |
| Digital zoom | 4 x |
| Front camera type | Single camera |
| Front camera resolution (numeric) | 5 MP |
| Front camera aperture number | 2.2 |
| Rear camera flash | Yes |
| Flash type | LED |
| Resolution at capture speed | 1920x1080@30fps |
| Video recording modes | 1080p |
| Auto focus | Yes |
| Time lapse mode | Yes |
| SIM card capability | Dual SIM |
| Mobile network generation | 4G |
| SIM card type | NanoSIM |
| 3G standards | WCDMA |
| 4G standard | TD-LTE & FDD-LTE |
| Wi-Fi | Yes |
| Wi-Fi standards | 802.11b, 802.11g, Wi-Fi 4 (802.11n) |
| Bluetooth | Yes |
| Bluetooth version | 5.0 |
| Subscription type | - |
| USB port | Yes |
| USB connector type | Micro-USB |
| Headphone connectivity | 3.5 mm |
| Short Message Service (SMS) | Yes |
| Multimedia Messaging Service (MMS) | Yes |
| Yes |
| Fingerprint reader | Yes |
| Speakerphone | Yes |
| Position location | Yes |
| GPS (satellite) | Yes |
| GLONASS | Yes |
| BeiDou | Yes |
| Platform | Android |
| Operating system installed | Android 10.0 |
| Battery capacity | 5000 mAh |
| Talk time (3G) | - h |
| Standby time (3G) | - h |
| Proximity sensor | Yes |
| Accelerometer | Yes |
| Ambient light sensor | Yes |
| Magnetic sensor | Yes |
| Weight | 190 g |
| Width | 76.4 mm |
| Depth | 8.9 mm |
| Height | 165.2 mm |
| AC adapter included | Yes |
| Quick start guide | Yes |
| Cables included | Micro-USB |
| SIM card ejector pin | Yes |
Can't find the answer to your question in the manual? You may find the answer to your question in the FAQs about the Realme C21 below.
The Realme C21 uses Android as the operating system.
The Realme C21 has a weight of 190 g.
The screen size of the Realme C21 is 6.5 ".
The Realme C21 has a height of 165.2 mm.
The screen resolution of the Realme C21 is 1600 x 720 pixels.
The Realme C21 has a width of 76.4 mm.
The Realme C21 has a depth of 8.9 mm.
The Realme C21 has a Micro-USB connection.
The Realme C21 has 64 GB storage capacity.
To set up the fingerprint sensor on your Realme C21, go to "Settings," then "Security," and select "Fingerprint." Follow the on-screen instructions to register your fingerprint and set it up for unlocking your phone.
To capture a screenshot on your Realme C21, simultaneously press the power button and the volume down button for a moment. The screenshot will be saved in your phone's gallery.
To enable battery percentage display on your Realme C21, swipe down from the top of the screen to access the notification panel. Then, swipe down again to access the Quick Settings panel. Tap the battery icon and enable the "Battery Percentage" option.
To transfer files between your Realme C21 and a computer, connect your phone to the computer using a USB cable. On your phone, when prompted, select "File Transfer" or "Media transfer" mode. Your phone will appear as a removable storage device on your computer, allowing you to transfer files.
To reset your Realme C21 to its factory settings, go to "Settings," then "Additional Settings," and select "Backup & Reset." Tap on "Erase All Data" or "Factory Data Reset," and follow the on-screen instructions. Remember to back up any important data before performing a factory reset.
Yes, the Realme C21 has a 6.5-inch display. This large display size will provide users with a spacious and immersive viewing experience.
Yes, the Realme C21 features a capacitive touchscreen, allowing for smooth and responsive multitouch functionality. Users will be able to easily navigate through the device's interface and use gestures for various commands.
The Realme C21's display has a brightness of 400 cd/m². This means that the screen can produce bright and vivid visuals even in well-lit environments, ensuring better visibility and readability for users.
The Realme C21 is equipped with a MediaTek Helio G35 processor, which features 8 cores and a boost frequency of 2.3 GHz. This processor offers smooth performance for everyday tasks and some light gaming, providing users with a decent level of speed and responsiveness.
Yes, the Realme C21 supports expandable storage through a MicroSD (TransFlash) card. With this capability, users can easily increase the device's storage capacity to accommodate more apps, photos, videos, and other data.
Yes, the manual of the Realme C21 is available in English .
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Number of questions: 6I want to open the case of the C21 without damaging anything. What should I pay particular attention to here?
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