Realme C21Y

Name: Realme C21Y
Brand: Realme
SKU: SKU102680
Rating: 4.1 (3250 reviews)

Realme
3,250 User Ratings
Last Updated: 20th August 2026

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Key Specs

Display 6.50-inch (720x1600)
Processor Unisoc T610
Front Camera 5MP
Rear Camera 13MP + 2MP + 2MP
RAM 3GB, 4GB
Storage 32GB, 64GB
Battery Capacity 5000mAh
OS Android 11

Market Status Released

Release Date 14th July 2021

Realme C21Y Summary

Realme C21Y mobile was launched on 14th July 2021. The phone comes with a 6.50-inch touchscreen display offering a resolution of 720x1600 pixels and an aspect ratio of 20:9. Realme C21Y is powered by an octa-core Unisoc T610 processor. It comes with 3GB, 4GB of RAM. The Realme C21Y runs Android 11 and is powered by a 5000mAh battery. The Realme C21Y supports proprietary fast charging.

As far as the cameras are concerned, the Realme C21Y on the rear packs a triple camera setup featuring a 13-megapixel (f/2.2) primary camera; a 2-megapixel (f/2.4) camera, and a 2-megapixel (f/2.4) camera. The rear camera setup has autofocus. It has a single front camera setup for selfies, featuring a 5-megapixel sensor with an f/2.4 aperture.

The Realme C21Y runs Realme UI is based on Android 11 and packs 32GB, 64GB of inbuilt storage that can be expanded via microSD card (up to 256GB) with a dedicated slot. The Realme C21Y is a dual-SIM (GSM and GSM) mobile that accepts Nano-SIM and Nano-SIM cards. The Realme C21Y measures 164.50 x 76.00 x 9.10mm (height x width x thickness) and weighs 200.00 grams. It was launched in Cross Black and Cross Blue colours.

Connectivity options on the Realme C21Y include Wi-Fi, GPS, Bluetooth v5.00, Micro-USB, 3G, and 4G (with support for Band 40 used by some LTE networks in India). Sensors on the phone include accelerometer, ambient light sensor, compass/ magnetometer, proximity sensor, and fingerprint sensor.

As of 20th August 2026, Realme C21Y price in India starts at Rs. 4,559.

Realme C21Y Price in India

Realme C21Y price in India starts from ₹ 4,559. The lowest price of Realme C21Y is ₹ 4,559 at Croma on 20th August 2026.

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Available Variants

3GB RAM

32GB STORAGE

Realme C21Y (3GB,32GB)

4GB RAM

64GB STORAGE

Realme C21Y (4GB,64GB)

Realme C21Y Full Specifications

General

Brand	Realme
Model	C21Y
Price in India	₹4,559
Release date	14th July 2021
Launched in India	Yes
Form factor	Touchscreen
Dimensions (mm)	164.50 x 76.00 x 9.10
Weight (g)	200.00
Battery capacity (mAh)	5000
Fast charging	Proprietary
Colours	Cross Black, Cross Blue

Display

Screen size (inches)	6.50
Touchscreen	Yes
Resolution	720x1600 pixels
Aspect ratio	20:9

Hardware

Processor	octa-core
Processor make	Unisoc T610
RAM	3GB, 4GB
Internal storage	32GB, 64GB
Expandable storage	Yes
Expandable storage type	microSD
Expandable storage up to (GB)	256
Dedicated microSD slot	Yes

Camera

Rear camera	13-megapixel (f/2.2) + 2-megapixel (f/2.4) + 2-megapixel (f/2.4)
No. of Rear Cameras	3
Rear autofocus	Yes
Rear flash	Yes
Front camera	5-megapixel (f/2.4)
No. of Front Cameras	1

Software

Operating system	Android 11
Skin	Realme UI

Connectivity

Wi-Fi	Yes
GPS	Yes
Bluetooth	Yes, v 5.00
Micro-USB	Yes
Headphones	3.5mm
Number of SIMs	2
SIM 1
SIM Type	Nano-SIM
GSM/CDMA	GSM
3G	Yes
4G/ LTE	Yes
Supports 4G in India (Band 40)	Yes
SIM 2
SIM Type	Nano-SIM
GSM/CDMA	GSM
3G	Yes
4G/ LTE	Yes
Supports 4G in India (Band 40)	Yes

Sensors

Fingerprint sensor	Yes
Compass/ Magnetometer	Yes
Proximity sensor	Yes
Accelerometer	Yes
Ambient light sensor	Yes

! Error or missing information? Please let us know

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Realme C21Y User Review and Ratings

4.1★ 3,250 ratings &
3,248 reviews

5 ★

1,966
4 ★

560
3 ★

271
2 ★

115
1 ★

338

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Realme C21Y 4-64

Tuntun Gupta (Dec 1, 2021) on Gadgets 360

Realme C21Y 4-64 Not Good Mobile My Waste Money Rs.10,000 Esame Google Dialer Hai, No Call Recording, No Block Number Notification, No Three Finger Screenshot, No App Lock, No Internet Speed Indicator,

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Just okay

Dipak Saha (Nov 30, 2021) on Flipkart

Not mark the expectation label.. redmi and poco better than realme.. I'm suggested you to don't buy this phone,same price redmi or poco is to much value for money..

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(1) Reply
Just wow!

Narendra Sharma (Dec 1, 2021) on Flipkart

Super

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Great product

अंगेष कुमार गोंड (Dec 1, 2021) on Flipkart

Best

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Simply awesome

Soni Seth (Dec 1, 2021) on Flipkart

Nice product

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