Realme P4 vs realme C21Y: Price, Specs & Features Comparison

Show Only Differences

Realme P4

Realme P4 ₹20,990

realme C21Y

Show Only Differences

Price Comparison −

PRICE & STORE OFFERS

Price & Store Offers

₹20,990

₹8,499 4GB + 64GB

General −

LAUNCH DATE

Launch Date

August 20, 2025 (Official)

August 30, 2021 (Official)

CUSTOM UI

Custom UI

Realme UI

Realme UI

OPERATING SYSTEM(OS)

Operating System(OS)

Android v15

Android v11

OS UPDATES

OS Updates

3 Years

-

SECURITY UPDATES

Security Updates

4 Years

-

BLUETOOTH

Bluetooth

-

Yes, v5.0

NEAR FIELD COMMUNICATION

Near Field Communication

-

No

Back Camera −

RESOLUTION

Resolution

1080x2392 px (FHD+)

-

AUTOFOCUS

Autofocus

Yes, Phase Detection Autofocus

Yes, Phase Detection Autofocus

OIS

OIS

No

-

FLASH

Flash

Yes, LED Flash

Yes, LED Flash

SHOOTING MODES

Shooting Modes

No

Continuous Shooting High Dynamic Range mode (HDR)

CAMERA FEATURES

Camera Features

No

4 x Digital Zoom Auto Flash Face detection Touch to focus

VIDEO RECORDING FEATURES

Video Recording Features

No

Full HD @30 fps

IMAGE RESOLUTION

Image Resolution

-

4128 x 3096 Pixels

SETTINGS

Settings

-

Exposure compensation, ISO control

CAMERA

Camera

-

13 MP + 2 MP + 2 MP

Front Camera −

RESOLUTION

Resolution

1080x2392 px (FHD+)

-

FLASH

Flash

Yes, LED Flash

-

VIDEO RECORDING

Video Recording

No

-

FRONT CAMERA

Front Camera

-

5 MP

Performance −

CHIPSET

Chipset

MediaTek Dimensity 7400 Ultra

Unisoc T610

ARCHITECTURE

Architecture

64 bit

-

FABRICATION

Fabrication

4 nm

12 nm

GRAPHICS (GPU)

Graphics (GPU)

Mali-G615 MC2

Mali-G52

RAM

RAM

6 GB / 8 GB

3 GB / 4 GB

RAM TYPE

RAM Type

LPDDR4X

LPDDR4X

CPU

CPU

-

Octa core (1.8 GHz, Dual core, Cortex A75 + 1.8 GHz, Hexa Core, Cortex A55)

Display −

DISPLAY TYPE

Display Type

Hyper Glow AMOLED

IPS LCD

SCREEN SIZE

Screen Size

6.77 inches (17.2 cm)

6.5 inches (16.51 cm)

RESOLUTION

Resolution

1080x2392 px (FHD+)

720x1600 px (HD+)

PEAK BRIGHTNESS

Peak Brightness

4500 nits

-

HBM BRIGHTNESS

HBM Brightness

1600 nits

-

REFRESH RATE

Refresh Rate

144 Hz

60 Hz

ASPECT RATIO

Aspect Ratio

19.9:9

20:9

PIXEL DENSITY

Pixel Density

387 ppi

270 ppi

SCREEN TO BODY RATIO (CALCULATED)

Screen to Body Ratio (calculated)

89.28 %

81.59 %

BEZEL-LESS DISPLAY

Bezel-less Display

Yes with punch-hole display

Yes with waterdrop notch

SCREEN TO BODY RATIO (CLAIMED BY THE BRAND)

Screen to Body Ratio (claimed by the brand)

94 %

88.7 %

BRIGHTNESS

Brightness

-

420 nits

TOUCH SAMPLING RATE

Touch Sampling Rate

-

120 Hz

Design & Body −

HEIGHT

Height

163.34 mm

164.5 mm

WIDTH

Width

75.88 mm

76 mm

THICKNESS

Thickness

7.58 mm

9.1 mm

WEIGHT

Weight

185 grams

200 grams

Network −

SIM SLOT(S)

SIM Slot(s)

Dual SIM

Dual SIM

SIM TYPE

SIM Type

SIM1: Nano, SIM2: Nano

SIM1: Nano, SIM2: Nano

NETWORK SUPPORT

Network Support

5G, 4G

5G Not Supported, 4G

VOLTE

VoLTE

Yes

Yes

SIM 1

SIM 1

Head: 0.981 W/kg, Body: 0.907 W/kg

4G bands Expand

SIM 2

SIM 2

Head: 0.981 W/kg, Body: 0.907 W/kg

4G bands Expand

WI-FI

Wi-Fi

Yes, Wi-Fi 6 (802.11 a/b/g/n/ac/ax) 5GHz

-

WI-FI FEATURES

Wi-Fi Features

Mobile Hotspot

Mobile Hotspot

BLUETOOTH

Bluetooth

Yes, v5.4

-

GPS

GPS

Yes with A-GPS, Glonass

Yes with A-GPS, Glonass

NFC

NFC

No

-

Battery −

CAPACITY

Capacity

7000 mAh

5000 mAh

QUICK CHARGING

Quick Charging

Yes, 80W Ultra Charging, 50% in 25 minutes

-

BATTERY TYPE

Battery Type

-

Li-ion

REVERSE CHARGING

Reverse Charging

-

Yes

Storage −

INTERNAL STORAGE

Internal Storage

128 GB / 256 GB

32 GB / 64 GB

STORAGE TYPE

Storage Type

UFS 3.1

eMMC 5.1

EXPANDABLE STORAGE

Expandable Storage

No

Yes, Up to 256 GB

Multimedia −

AUDIO JACK

Audio Jack

USB Type-C

3.5 mm

Sensors −

FINGERPRINT SENSOR

Fingerprint Sensor

Yes

Yes

FINGERPRINT SENSOR POSITION

Fingerprint Sensor Position

On-screen

Rear

FINGERPRINT SENSOR TYPE

Fingerprint Sensor Type

Optical

-

OTHER SENSORS

Other Sensors

Light sensor, Proximity sensor, Accelerometer, Compass, Gyroscope

Light sensor, Proximity sensor, Accelerometer

PROCESSOR

Processor

-

Unisoc T610

RAM & STORAGE

RAM & Storage

-

3 GB RAM + 32 GB 4 GB RAM + 64 GB

DISPLAY

Display

-

6.5", 720 x 1600 Resolution