Release Date: 05 Mar, 2021
80% SPEC SCORE
$389
The Realme C21 comes with Android 10, ensuring enhanced functionality and smooth multitasking. It features a large 6.5-inches HD+ display, perfect for both... Read More
Realme C21 Key Features
Display
6.5 inches (720x1600 pixels) HD
60Hz Refresh rate
Camera
13+2+2 MP (Dual Camera)
5 MP Selfie 1080P Video
Hardware
MediaTek MT6765G Helio G35 (12 nm)
OS
Android 10
Realme UI
Ram & Storage
3GB + 32GB
4GB + 64GB
Battery
5000mAh
wired, 10W
Data Updated on: 01 Jun, 2026
Realme C21 Price and Full Specifications
Display
| Screen Size | 6.5 inches, 102 cm² (~80.8% screen-to-body ratio) |
| Display Type | IPS LCD |
| Aspect Ratio | 20:9 |
| PPI | 270 ppi |
| Refresh Rate | 60Hz |
| Brightness | 400 nits (typ) |
Performance
| Processor (SoC) | MediaTek MT6765G Helio G35 (12 nm) |
| Fabrication process | 12nm |
| CPU | PowerVR (4x2.3 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53) |
| CPU cores | Octa-core |
| GPU | PowerVR GE8320 |
Storage
| Memory | 3GB + 32GB, 4GB + 64GB |
| Storage type | eMMC 5.1 |
Camera
REAR CAMERA | |
| Type | Dual camera |
| Primary | 13 MP, 26mm (wide), 1.12µm, PDAF, (1/3.06") Aperture size: f/2.2 Focal length: 1.12µm |
| Secondary | 2 MP, (macro) Aperture size: f/2.4 |
| Tertiary | 2 MP, (depth) Aperture size: f/2.4 |
| Features | LED flash, HDR, panorama |
| Video Recording | 1080p @30fps |
| Autofocus | Yes |
| OIS | No |
FRONT CAMERA | |
| Primary | 5 MP, (wide), 1.12µm Aperture size: f/2.2 Focal length: 1.12µm |
| Features | HDR, panorama |
| Video Recording | 1080p @30fps, |
Battery
| Battery Capacity | 5000mAh |
| Charging | 10W wired, Reverse wired |
Sound
| Loudspeaker | Yes |
| Sound Jack | 3.5 |
Software & OS
| Operating System | Android 10 |
| OS UI | Realme UI |
Design
| Dimensions | 165.2 x 76.4 x 8.9 mm (6.50 x 3.01 x 0.35 in) |
| Weight | 190g |
| Color Options | Cross Black, Cross Blue |
| Build | Glass front, plastic frame plastic back |
| Sim Card Types | Dual SIM (Nano-SIM, dual stand-by) |
Network
| Technology | GSM / HSPA / LTE |
| 2G bands | GSM 850 / 900 / 1800 / 1900 |
| 3G bands | HSDPA 850 / 900 / 2100 |
| 4G bands | LTE 1 3 5 7 8 20 28 38 40 41 1 3 5 8 38 40 41 |
| Speed | HSPA / LTE |
Connectivity
| WLAN | Wi-Fi 802.11 b/g/n |
| Bluetooth | 5.0, A2DP, LE |
| Positioning | GPS, GLONASS, BDS |
| NFC | No |
| Radio | Yes |
| Infrared-port | No |
| USB Version | microUSB 2.0 |
Sensors & Features
| Sensors | Fingerprint (rear-mounted), accelerometer, proximity, compass |
Additional Info
PRICING | |
| 3GB + 32GB | $389 |
| 4GB + 64GB | $415 |
| Models | RMX3201 |
Disclaimer: Information here may not be 100% accurate; please verify specs and prices on the retailer's website before buying. This page contains affiliate links. We may earn a commission if you make a purchase through them, at no extra cost to you. Thanks for your support!
Realme C21 Comparisons
Realme C21
$389
80% SPEC SCORE
6.5 inches (16.51 cm)
60Hz Display
13+2+2 MP (Dual)
5 MP (Single)
MediaTek
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5000 mAh
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6.5 inches (16.51 cm)
120Hz Display
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5 MP (Single)
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MT6765G Helio G35 (12 nm)
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Realme C25s
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6.5 inches (16.51 cm)
60Hz Display
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6.5 inches (16.51 cm)
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5 MP (Single)
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Realme C25Y
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8 MP (Single)
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6.5 inches (16.51 cm)
60Hz Display
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8 MP (Single)
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6000 mAh
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Realme C15
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6.5 inches (16.51 cm)
60Hz Display
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5 MP (Single)
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5000 mAh
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Realme C21Y
$119
80% SPEC SCORE
6.5 inches (16.51 cm)
60Hz Display
13+2+2 MP (Dual)
5 MP (Single)
Unisoc
T610 (12 nm)
Android 10
N/A
5000 mAh
N/A
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Realme C3i
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60Hz Display
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5 MP (Single)
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6.5 inches (16.51 cm)
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Realme C20
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6.5 inches (16.51 cm)
60Hz Display
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5 MP (Single)
MediaTek
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5000 mAh
10W wired
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Realme C11
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