Mobile Phones

Latest Realme C21 with Big Display, 3 AI Triple Cameras and G35 processor

Review of Realme C21, the newest small model in the C Series of Realme that stands out for the value of the specification for the price by Realme C21 with a modern specification upgrade from the previous model There is an option to add 4GB / 64GB ROM RAM, but still the same concept about a big battery. As for the usage, it will be like that Scroll down to read the Realme C21 review.


Realme C21 comes with a 6.5-inch water drop screen, HD + resolution, has a screen ratio of 20: 9, the screen-to-area ratio of the entire front is 89.5% due to the design of the screen with a stacking process, therefore in viewing Video Or the gameplay will feel more vivid, with Notch taking up very little space in front of you. It is a small smartphone with a large screen ever.

In terms of HD + resolution with a 6.5 inch screen, I can personally get it with such a resolution. Although not as sharp as the same size Full HD + resolution screen But I didn’t see that pixelated pixel. In general use Watching gaming videos shouldn’t be a problem. But if you open to read a lot of text, such as reading Ebook for a long time, it may cause eye strain as well.

Overall for the realme C21’s screen is at a good level. When compared with the price Bright colors to a certain extent But personally, I think the screen will look a little bluish. And then there is an eye care mode That adjusts the screen to a warm color Suitable for use in low light conditions.

Realme C21 device details start from below. It includes a 3.5 mm headphone port, a micro USB charging port and a microphone for phone calls. On the left side is a 3-slot SIM card slot (2 Nano SIM + 1 micro SD Card) and the right side is the Power button for turning on-off the device and the volume buttons The slimness of this model is 8.9 mm and weighs 190 g.

The back of the device, realme C21 review comes with a geometric design, inspired by the geometry of the hourglass. Designed with bold cross-hatch technique, it creates a modern silhouette with a strong feel. Can prevent fingerprints It is available in 2 colors: Cross Blue and Cross Black. The surface of the back cover is made of precision radium engraver from Germany. With 300 minutes of polishing, it is carved into more than 450 curves in the back to create a special glare effect.

Lower left corner of the back cover There is a speaker at the back, paired with the logo. realme The camera is designed to be a square shape, which is now popular. It consists of 3 rear cameras, Triple Camera, 13MP + 2MP + 2MP resolution, 1 LED flash and fingerprint scanning sensor in the middle of the back cover.

For unlocking the device, realme C21 can be used to unlock the device with the fingerprint sensor on the back. Or to use face scanning to increase the ease of use It can be done as well. The format of the password. Choose both PIN, Password and Pattern.

Another interesting feature of the realme C21, including all realme smartphones, is the standard that has been certified by TUV Rheinland, an independent global organization. In the field of inspection and certification of industry standards All realme smartphones undergo rigorous quality testing in accordance with TÜV Rheinland Smartphone High Reliability standards to provide the best user experience.


In terms of photography, realme C21 comes with 3 AI rear cameras, Triple Camera, consisting of a 13MP + 2MP Macro and 2MP B&W main camera, PDAF focus system, providing speed and accuracy to a certain extent and has a built-in number of LED flashes

Interesting shooting modes in realme C21 besides picture mode Will be a person shooting mode That can melt the background Or it will be a highlight like Super Nightscape night mode without a tripod. Allows for bright night photography. And more sharp The night mode is rarely found in smartphones, the price is similar to the realme C21, which is another strength of this smartphone.

Overview for the rear camera of realme C21 is also within the acceptable criteria for entry-level smartphones. At the very least, it has a higher resolution camera than many brands. And coming with up to 3 cameras together, taking close by macro Or to shoot people with filters with B&W lenses, but unfortunately there are no ultra wide-angle lenses available

The images obtained from the rear camera of realme C21 are considered good details in sufficient light. Focusing is quite accurate and fast. With the PDAF focus system, although not very versatile shooting mode. But considered to be sufficient for use As for people or Portrait mode, the background melting is quite smooth.

For the front camera of realme C21 has a resolution of 5 megapixels f / 2.4, supports AI Beauty mode with HDR and also supports face unlocking.

The front camera of realme C21 gives a wide view. Selfie snapshots If it’s well lit I think this model is considered to be good to some extent. The presence of a portrait mode Helps to melt the background Despite having found some miss-cutting edges But considered acceptable compared to the price As for selfies in low light Will cause the image quality to drop considerably.

Another feature available in the realme C21 front camera is the Palm Selfie or just raise the hand to show the camera. Instead of pressing the shutter button When the camera is caught that a hand is raised A 2-second countdown will be performed, making the selfie more convenient. Because you don’t have to keep your fingers bent to press the shutter When taking a selfie, you can extend your hand to the fullest arm. Resulting in a wider perspective.

Processor and Performance

Performance The model continues to opt for the MediaTek Helio G35 processor, a MediaTek chipset positioned as an entry-level smartphone gaming chip. And I have reported test results in realme C12 reviews using this chip already. That it can play some games But because this model A 4GB RAM variant has been added, making the processing performance a bit higher. Compared to the previous generation

To play this version of the game, I tested it with Free Fire game enough to play the game. But it needs to be adjusted to suit the game as well, as with the RoV game, I tried playing with a low level graphics mode in 30fps mode, it was enough to play as well.

General use part Since this model provides 4GB of RAM, it makes general usage a certain level of fluidity. But if you open multiple apps at the same time and switch apps back and forth frequently, there will be some lag. However, the overall picture is acceptable. When compared with the price of the body Especially use it to open the app, I won, or various banking applications.


realme C21 comes with the latest Android operating system, Android 10, with realme UI that focuses on bright colors. High-saturation, icons, backgrounds and UI animation animation, user can customize icons by themselves. Using the home page is an App Drawer to separate the application page from the home page.


In terms of power management, realme C21 comes with a battery of up to 5000 mAh, able to standby the device for up to 47 days. If I have not played the game continuously for a long time, I think 1 day and a half – 2 days can still charge one time. Is to be assured that the battery is too long to be used in 1 day for sure And not only the battery is durable, but the realme C21 also does a Reverse Charge, changing itself to a Powerbank to charge other smartphones via a USB OTG cable as well (must be purchased separately).

I tested it by charging to 100% from 9:00 a.m. to 4:00 p.m., having played two ROV games together, found that the battery was about 89% left. Power management is quite good. But the observation is in reverse charging. With a 10W power adapter in the box, charging takes about 2 hours.

Power Management Usually the battery is very durable, realme C21 also comes with the super power saving mode, Super Power Saving Mode, which allows the user to select 6 main active applications on the screen. Special standby It’s a screen that mostly focuses on black. To be able to use the battery for a longer time. Even with only 5% battery remaining, it is still able to watch Youtube continuously for 1.36 hours.

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