realme C21

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67%
realme C21
realme C21
realme C21
realme C21
realme C21
realme C21
realme C21
realme C21
View All Photos (8)
₹9,999 (In Stock)
Available in 1 store
See Prices

Key Specs

Android v10 (Q)

Performance

(Avg)
  • MediaTek Helio G35
  • Octa Core, 2.3 GHz
  • 3 GB / 4 GB RAM, LPDDR4X

Display

(Very Good)
  • 6.5 inches (16.51 cm); IPS LCD
  • 720x1600 px (HD+)
  • 60 Hz Refresh Rate
  • Bezel-less with waterdrop notch

Rear Camera

(Good)
  • Triple Camera Setup
    • 13 MP (upto 4x Digital Zoom) Wide Angle Primary Camera
    • 2 MP Macro Camera
    • 2 MP Mono Camera
  • LED Flash
  • Full HD @30 fps Video Recording

Front Camera

(Good)
  • 5 MP Wide Angle Lens
  • Full HD @30 fps Video Recording

Battery

(Very Good)
  • 5000 mAh, Li-ion

General

  • SIM1: Nano, SIM2: Nano
  • 5G Not Supported
  • 32 GB / 64 GB Storage, Expandable upto 256 GB
Add To Compare See Full Specs

realme C21 Prices in India

3 GB + 32 GB
Flipkart Flipkart
₹9,999 Go To Store
4 GB + 64 GB
Starting at ₹10,999 View All
See All Prices

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Higher Rear Camera Resolution: 64 MP vs 13 MP
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Higher Battery Capacity: 6000 mAH vs 5000 mAH
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realme C21 Summary

realme C21 is available at ₹9,999 in the 3 GB RAM + 32 GB storage configuration and was launched on April 14, 2021. Other configurations include 4 GB RAM + 64 GB storage at ₹10,999. It runs on Android v10 Q with Realme UI.

On the performance front, realme C21 is powered by the MediaTek Helio G35 chipset with PowerVR GE8320 graphics and LPDDR4X RAM. In performance testing, realme C21 records an AnTuTu score of 131,494 and a Geekbench single-core score of 172.

On the display front, realme C21 gets a 6.5-inch IPS LCD display with 720x1600 px (HD+) resolution and a 60 Hz refresh rate. The display also supports a touch sampling rate of 120 Hz, and has an aspect ratio of 20:9.

In terms of design, realme C21 measures 165.2 mm × 76.4 mm × 8.9 mm (H x W x T) and weighs 190 grams.

On the battery front, realme C21 packs a 5000 mAh battery with Li-ion battery technology.

For storage, realme C21 comes with 32 GB / 64 GB of internal storage based on eMMC 5.1 storage with support for expandable storage up to 256 GB. It supports Dual SIM with SIM 1: Nano and SIM 2: Nano and is compatible with 4G networks.

For connectivity, realme C21 supports Wi-Fi 4 (802.11 b/g/n), MIMO, along with Bluetooth v5.0 and GPS with A-GPS and Glonass. On the audio front, it includes a 3.5 mm audio jack. A fingerprint sensor provides biometric security.

For photography, realme C21 features a triple rear camera setup with a 13 MP wide angle primary camera, a 2 MP macro secondary camera, and a 2 MP mono tertiary camera. The setup supports autofocus with phase detection autofocus. For video recording, the rear cameras support up to Full HD @30 fps. The primary camera supports up to 4x digital zoom.

For selfies and video calls, realme C21 features a single front camera with a 5 MP primary camera with a wide angle lens. For video recording, the front camera supports up to Full HD @30 fps.

...read more

Popular Comparisons

realme C21 Specifications

General Performance Display Design Rear Camera Front Camera Battery Storage Network & Connectivity Multimedia Sensors

General
Launch Date April 14, 2021 (Official)
Operating System Android v10 (Q)
Custom UI Realme UI

Performance

(Avg)
Chipset MediaTek Helio G35 View Details
Processor Octa core, 2.3 GHz, Cortex A53
Architecture 64 bit
Fabrication 12 nm
Graphics (GPU) PowerVR GE8320
RAM 3 GB / 4 GB
RAM Type LPDDR4X
Performance Test Results icon View AnTuTu Score
AnTuTu Score 131,494
Speed Test (Antutu Score)
The higher, the better
boltt ACE 5G 699,449 
HMD Vibe 2 5G 511,972 
Itel Zeno 200 4G 381,574 
Tecno Spark Go 3 374,119 
Infinix Smart 20 4G 366,645 
realme C21 131,494 
*Group: 9-12k Phones
See comparison with other phones
Featured
realme C21
realme C21
₹9,999
Flipkart
Go To Store

Display

(Very Good)
Display Type IPS LCD
Screen Size 6.5 inches (16.51 cm)
Resolution 720x1600 px (HD+)
Brightness 400 nits
Refresh Rate 60 Hz
Touch Sampling Rate 120 Hz
Aspect Ratio 20:9
Pixel Density 270 ppi
Screen to Body Ratio (calculated) 80.82 %
Bezel-less Display Yes with waterdrop notch
Screen to Body Ratio (claimed by the brand) 89.5 %

Design
Height 165.2 mm
Width 76.4 mm
Thickness 8.9 mm
Weight 190 grams
Build Material Back: Plastic

Rear Camera

(Good)
Resolution
CameraMPLens FeaturesApertureSensor SizePixel SizeZoomFocal Length
Primary13 MPWide Anglef/2.21/3" 1.12µmupto 4x Digital Zoom26 mm
Secondary2 MPMacrof/2.41.75µm
Tertiary2 MPMonof/2.41.75µm
Autofocus Yes, Phase Detection Autofocus
Flash Yes, LED Flash
Image Resolution 4128 x 3096 Pixels
Settings Exposure compensation, ISO control
Shooting Modes Continuous Shooting
High Dynamic Range mode (HDR)
Camera Features 4 x Digital Zoom
Auto Flash
Face detection
Touch to focus
Video Recording Full HD @30 fps

Front Camera

(Good)
Resolution
CameraMPLens FeaturesApertureSensor SizePixel Size
Primary5 MPWide Anglef/2.21/5.0"1.12µm
Camera Features Fixed Focus
Video Recording Full HD @30 fps

Battery

(Very Good)
Capacity 5000 mAh
Battery Type Li-ion
Reverse Charging Yes

Storage
Internal Storage 32 GB / 64 GB
Storage Type eMMC 5.1
Expandable Storage Yes, Up to 256 GB

Network & Connectivity
SIM Slot(s) Dual SIM
SIM Type SIM1: Nano, SIM2: Nano
Network Support 5G Not Supported, 4G
VoLTE Yes
SIM 1 4G bands
Expand
Bands Features
4G bandsTD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41)
FD-LTE 2100(band 1) / 1800(band 3) / 2600(band 7) / 900(band 8) / 700(band 28) / 850(band 5) / 800(band 20)
SIM 2 4G bands
Expand
Bands Features
4G bandsTD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41)
FD-LTE 2100(band 1) / 1800(band 3) / 2600(band 7) / 900(band 8) / 700(band 28) / 850(band 5) / 800(band 20)
Wi-Fi Yes, Wi-Fi 4 (802.11 b/g/n), MIMO
Wi-Fi Features Mobile Hotspot
Bluetooth Yes, v5.0
GPS Yes with A-GPS, Glonass
NFC No

Multimedia
Audio Jack 3.5 mm

Sensors
Fingerprint Sensor Yes
Fingerprint Sensor Position Rear
Other Sensors Light sensor, Proximity sensor, Accelerometer

realme C21 User Reviews

4.4/5
Based on 72,845 ratings

realme C21 Key Highlights

Processor MediaTek Helio G35
RAM & Storage 3 GB RAM + 32 GB
4 GB RAM + 64 GB
Display 6.5", 720 x 1600 Resolution
Rear Camera 13 MP + 2 MP + 2 MP
Front Camera 5 MP
Battery 5000 mAh
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realme C21 Price In India

Product Name Store Price
realme C21 (3 GB + 32 GB) Flipkart ₹9,999
realme C21 (4 GB + 64 GB) Flipkart ₹5,999
Mobiles› realme Mobile Phones› realme C21
Updated on: October 30, 2026

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