realme C21Y Specifications

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

Key Specs

RAM 3 GB
Processor Unisoc T610
Rear Camera 13 MP + 2 MP + 2 MP
Front Camera 5 MP
Battery 5000 mAh
Display 6.5 inches (16.51 cm)

General

Launch Date August 30, 2021 (Official)
Operating System Android v11
Custom UI Realme UI

Performance

Good
Chipset Unisoc T610
CPU Octa core (1.8 GHz, Dual core, Cortex A75 + 1.8 GHz, Hexa Core, Cortex A55)
Fabrication 12 nm
Graphics Mali-G52
RAM 3 GB
RAM Type LPDDR4X
Performance Test Results Tested by 91mobiles
AnTuTu Score 162,658
Bootup Time 30.0 s
Speed Test (Antutu Score)
The higher, the better
Average performance
Best 430,900
This Phone 162,658
Group Average 154,467
Worst 38,773
*Group: 4-10k Phones
See comparision with other phones
Performance Test Results Tested by 91mobiles
Speed Test (Antutu Score)
Average performance
The higher, the better
POCO M6 Pro 5G 128GB 430,900
Moto G24 Power 266,894
Infinix Hot 40i 266,030
Moto G04 258,102
realme C21Y 162,658
Infinix Smart 8 142,347
Samsung Galaxy M01 Core 32GB 38,773
*Group: 4-10k Phones
Bootup Time
Average bootup time
The lower, the better
Motorola One Action 16.0 s
Infinix Smart 8 21.0 s
Infinix Hot 40i 23.0 s
Moto G04 26.0 s
realme C21Y 30.0 s
Moto G24 Power 31.0 s
Infinix Smart 5 72.0 s
*Group: 4-10k Phones
Bootup Time
The lower, the better
Average bootup time
Best 16.0 s
Group Average 28.8 s
This Phone 30.0 s
Worst 72.0 s
*Group: 4-10k Phones
See comparision with other phones
Gaming Test Results Tested by 91mobiles
GFX Score 2,171.0
Battery Drain 2.0 %
Heating 44.5 %
* after 30 mins of gaming
GFX Score
The higher, the better
Average graphics performance
Best 4,508.0
This Phone 2,171.0
Group Average 1,442.2
Worst 299.4
*Group: 4-10k Phones
See comparision with other phones
Gaming Test Results Tested by 91mobiles
* after 30 mins of gaming
GFX Score
Average graphics performance
The higher, the better
Itel P55 5G 4,508.0
realme C21Y 2,171.0
Moto G24 Power 1,797.0
Infinix Hot 40i 1,614.0
Moto G04 1,601.0
Infinix Smart 8 1,148.0
Itel A60 299.4
*Group: 4-10k Phones
Battery Drain
Good battery backup while gaming
The lower, the better
Itel P55 1.0 %
realme C21Y 2.0 %
POCO C65 3.0 %
Moto G24 Power 3.0 %
Moto G24 Power 8GB RAM 3.0 %
Infinix Smart 8 4.0 %
Nokia 5.4 10.0 %
*Group: 4-10k Phones
Heating
Considerable heating while gaming
The lower, the better
POCO C65 2.4 %
Infinix Smart 8 HD 7.4 %
Infinix Smart 8 12.5 %
realme C51 37.5 %
POCO M6 Pro 5G 4GB RAM 39.3 %
realme C21Y 44.5 %
Nokia 5.4 70.1 %
*Group: 4-10k Phones
Battery Drain
The lower, the better
Good battery backup while gaming
Best 1.0 %
This Phone 2.0 %
Group Average 4.8 %
Worst 10.0 %
*Group: 4-10k Phones
See comparision with other phones
Heating
The lower, the better
Considerable heating while gaming
Best 2.4 %
Group Average 25.1 %
This Phone 44.5 %
Worst 70.1 %
*Group: 4-10k Phones
See comparision with other phones
Benchmark Screenshots
Benchmarks
AnTuTu Benchmark
Benchmarks
Graphics Benchmark
Benchmarks
Geekbench5 Benchmark

Display

Average  
Display Type IPS LCD
Screen Size 6.5 inches (16.51 cm)
Resolution 720x1600 px (HD+)
Aspect Ratio 20:9
Pixel Density 270 ppi
Screen to Body Ratio (calculated) 81.59 %
Bezel-less display Yes with waterdrop notch
Touch Screen Yes, Capacitive Touchscreen, Multi-touch
Brightness 420 nits
Refresh Rate 60 Hz
Screen to Body Ratio (claimed by the brand) 88.7 %
UI Screenshots
UI Screenshot
Lock Screen
UI Screenshot
Home Screen
UI Screenshot
Screen With Widgets
UI Screenshot
Dialer Screen
UI Screenshot
App Drawer
UI Screenshot
Notification Panel
UI Screenshot
Quick Settings Panel
UI Screenshot
Settings Screen
UI Screenshot
OS Version
UI Screenshot
Storage
UI Screenshot
Battery
UI Screenshot
Camera On
UI Screenshot
Camera Options
UI Screenshot
Camera Modes
UI Screenshot
Camera Settings
UI Screenshot
Picture Size Options
UI Screenshot
Video Size Options

Design

Height 164.5 mm
Width 76 mm
Thickness 9.1 mm
Weight 200 grams
Colours Cross Blue, Cross Black
360° View

Rear Camera

Good
Camera Setup Triple
Resolution
CameraMPApertureLens FeaturesFocal LengthSensor SizePixel SizeZoom
Primary13 MPf/2.2Wide Angle(80° field-of-view)25.5 mm3" 1.12µmupto 4x Digital Zoom
Secondary2 MPf/2.4Macro21.8 mm 5.0" 1.75µm
Tertiary2 MPf/2.421.8 mm5.0" 1.75µm
Sensor CMOS image sensor
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 1920x1080 @ 30 fps
Rear Camera Samples
Rear Camera
Daylight Auto / HDR OFF
Rear Camera
Daylight / HDR ON
Rear Camera
Portrait Shot
Rear Camera
AI OFF
Rear Camera
AI ON
Rear Camera
Night Mode OFF
Rear Camera
Night Mode ON
Rear Camera
Close Up
Rear Camera
Macro
Rear Camera
Low Light
Rear Camera
Low Light With Flash
Rear Camera
Colour Variance
Compare Camera Samples
realme C21Y 13 MP
vs
realme C25Y 50 MP
realme Narzo 30A
realme Narzo 50A
Daylight Auto / HDR OFF
realme C25Y
realme C21Y
Daylight / HDR ON
realme C25Y
realme C21Y
Portrait Shot
realme C25Y
realme C21Y
AI OFF
realme C25Y
realme C21Y
AI ON
realme C25Y
realme C21Y
Night Mode OFF
realme C25Y
realme C21Y
Night Mode ON
realme C25Y
realme C21Y
Close Up
realme C25Y
realme C21Y
Macro
realme C25Y
realme C21Y
Low Light
realme C25Y
realme C21Y
Low Light With Flash
realme C25Y
realme C21Y
Selfie
realme C25Y
realme C21Y
Selfie Low Light
realme C25Y
realme C21Y
Selfie Low Light With Flash
realme C25Y
realme C21Y
Colour Variance
realme C25Y
realme C21Y

Front Camera

Average  
Camera Setup Single
Resolution
CameraMPApertureLens FeaturesSensor SizePixel Size
Primary5 MPf/2.2Wide Angle5.0"1.12µm
Sensor CMOS
Camera Features Fixed Focus
Video Recording 1280x720 @ 30 fps
Front Camera Samples
Front Camera
Selfie
Front Camera
Selfie Low Light
Front Camera
Selfie Low Light With Flash

Battery

Very Good
Capacity 5000 mAh
Type Li-ion
Removable No
USB Type-C No
Battery Test Results Tested by 91mobiles
Battery Life (PC Mark) 16h 53m
Charging Time (20% to 100%) 2h 52m 3s
Battery Life (PC Mark)
The higher, the better
Average battery backup
Best 25.4 hrs
This Phone 16.9 hrs
Group Average 15.5 hrs
Worst 7.7 hrs
*Group: 4-10k Phones
See comparision with other phones
Battery Test Results Tested by 91mobiles
Battery Life (PC Mark)
Average battery backup
The higher, the better
Moto G10 Power 25.4 hrs
Infinix Hot 40i 18.9 hrs
realme C21Y 16.9 hrs
Infinix Smart 8 15.4 hrs
Moto G24 Power 13.5 hrs
POCO M6 9.6 hrs
Coolpad Cool 3 Plus 7.7 hrs
*Group: 4-10k Phones
Charging Time (20% to 100%)
Average charging time
The lower, the better
Tecno Spark Go 2024 1.0 hrs
POCO M6 1.5 hrs
Infinix Smart 8 1.8 hrs
POCO C61 2.4 hrs
Moto G04 2.6 hrs
realme C21Y 2.9 hrs
Infinix Hot 10 Play 3GB RAM 5.2 hrs
*Group: 4-10k Phones
Charging Time (20% to 100%)
The lower, the better
Average charging time
Best 1.0 hrs
Group Average 2.6 hrs
This Phone 2.9 hrs
Worst 5.2 hrs
*Group: 4-10k Phones
See comparision with other phones

Storage

Best In Class
Internal Memory 32 GB
Expandable Memory Yes, Up to 256 GB
Storage Type eMMC 5.1
USB OTG Yes

Network & Connectivity

SIM Slot(s) Dual SIM, GSM+GSM
SIM Size SIM1: Nano, SIM2: Nano
Network Support 5G Not Supported in India, 4G Supported in India, 3G, 2G
VoLTE Yes
SIM 1 4G bands, 3G bands, 2G bands, GPRS, EDGE,
Expand
Bands Features
4G bandsTD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41)
FD-LTE 2100(band 1) / 1800(band 3) / 900(band 8) / 850(band 5)
3G bandsUMTS 1900 / 2100 / 850 / 900 MHz
2G Bands GSM 1800 / 1900 / 850 / 900 MHz
GPRSAvailable
EDGEAvailable
SIM 2 4G bands, 3G bands, 2G bands, GPRS, EDGE,
Expand
Bands Features
4G bandsTD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41)
FD-LTE 2100(band 1) / 1800(band 3) / 900(band 8) / 850(band 5)
3G bandsUMTS 1900 / 2100 / 850 / 900 MHz
2G Bands GSM 1800 / 1900 / 850 / 900 MHz
GPRSAvailable
EDGEAvailable
SAR Value Head: 0.855 W/kg, Body: 0.674 W/kg
Wi-Fi Yes, Wi-Fi 4 (802.11 b/g/n)
Wi-Fi Features Mobile Hotspot
Bluetooth Yes, v5.0
GPS Yes with A-GPS, Glonass
NFC No
USB Connectivity Mass storage device, USB charging, microUSB 2.0

Multimedia

Loudspeaker Yes
Audio Jack 3.5 mm

Sensors

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