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Display 6.50-inch (720x1600)
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Processor Unisoc T610
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Front Camera 5MP
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Rear Camera 13MP + 2MP + 2MP
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RAM 3GB, 4GB
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Storage 32GB, 64GB
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Battery Capacity 5000mAh
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OS Android 11
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 4th October 2026, Realme C21Y price in India starts at Rs. 10,990.
Realme C21Y Price in India
Realme C21Y price in India starts from ₹ 10,990. The lowest price of Realme C21Y is ₹ 10,990 at Amazon on 4th October 2026.
Realme C21Y Full Specifications
| Brand | Realme |
| Model | C21Y |
| Price in India | ₹10,990 |
| 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 |
| Screen size (inches) | 6.50 |
| Touchscreen | Yes |
| Resolution | 720x1600 pixels |
| Aspect ratio | 20:9 |
| 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 |
| 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 |
| Operating system | Android 11 |
| Skin | Realme UI |
| 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 |
| Fingerprint sensor | Yes |
| Compass/ Magnetometer | Yes |
| Proximity sensor | Yes |
| Accelerometer | Yes |
| Ambient light sensor | Yes |
Realme C21Y User Review and Ratings
3,248 reviews
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Realme C21Y 4-64Tuntun Gupta (Dec 1, 2021) on Gadgets 360Realme 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,Is this review helpful?
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Just okayDipak Saha (Nov 30, 2021) on FlipkartNot 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..Is this review helpful?
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Just wow!Narendra Sharma (Dec 1, 2021) on FlipkartSuperIs this review helpful?
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Great productअंगेष कुमार गोंड (Dec 1, 2021) on FlipkartBestIs this review helpful?
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Simply awesomeSoni Seth (Dec 1, 2021) on FlipkartNice productIs this review helpful?
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