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 work and entertainment. thanks to its 60Hz refresh rate With a Average 5000 mAh battery life, you can stay powered throughout the day without frequent charging. Price starting at $389 this device is Entry-level and it’s offers incredible value, blending performance, style, and affordability.
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 Sep, 2026
Realme C21 Pros & Cons
By Amit Dubey | on 13 September 2026
5
/ 10
TSI Score
Design
Display
Performance
Battery
Camera
Software
Sound
Usage
Pros
Large 5000mAh battery.
Low starting price in India and Europe.
6.5-inch screen is roomy for the class.
Cons
720p resolution is basic at this size.
Helio G35 is strictly entry-level silicon.
Only 3GB RAM on the listed variant.
32GB storage leaves little headroom.
No high-refresh-rate display.
Realme C21 Price and Full Specifications
Launch Date
| Announced Date | 05 Mar, 2021 |
| Released Date | 05 Mar, 2021 |
| Status | Available |
Network
| Technology | GSM / HSPA / LTE |
| 2G bands | GSM 850 / 900 / 1800 / 1900 |
| 3G bands | HSDPA 850 / 900 / 2100 |
| 4G bands | LTE |
| Speed | HSPA / LTE |
Display
Similar Display
| Screen Size | 6.5 inches, 102 cm² (~80.8% screen-to-body ratio) |
| Display Type | IPS LCD |
| Resolution | 720 × 1600 pixels (HD) |
| Aspect Ratio | 20:9 |
| PPI | 270 ppi |
| Refresh Rate | 60Hz |
| Brightness | 400 nits (typ) |
Performance
Similar Performance
| Processor (SoC) | MediaTek MT6765G Helio G35 (12 nm) |
| Fabrication process | 12nm |
| CPU | Octa-core: 4x2.3 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53 |
| CPU cores | 8 |
| GPU | PowerVR GE8320 |
Storage
| Memory | 3GB + 32GB, 4GB + 64GB |
| Storage type | eMMC 5.1 |
| Memory Card Slot | microSDXC (dedicated slot) |
Camera
Similar Camera
REAR CAMERA | |
| Type | Dual camera |
| Primary | 13 MP, f/2.2, 26mm (wide), 1/3.06", 1.12µm, PDAF |
| Secondary | 2 MP, f/2.4, (macro) |
| Tertiary | 2 MP, f/2.4, (depth) |
| Features | LED flash, HDR, panorama |
| Video Recording | 1080p @30fpsfps |
FRONT CAMERA | |
| Type | Single camera |
| Primary | 5 MP, f/2.2, (wide), 1.12µm |
| Features | HDR, panorama |
| Video Recording | 1080p @30fpsfps |
Battery
Similar Battery
| Battery Capacity | 5000mAh |
| Battery Removable | No |
| Charging | 10W wired Reverse wired |
Software & OS
| Operating System | Android 10 |
| OS UI | Realme UI |
Design
| Dimensions | 165.2 x 76.4 x 8.9 mm (3.01 x 0.35 in) |
| Weight | 190g (6.70 oz) |
| Color Options | Cross Black, Cross Blue |
| Build | Glass front, plastic back, plastic frame |
| Sim Card Types | Dual SIM (Nano-SIM, dual stand-by) |
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, OTG |
Sound
| Loudspeaker | Yes |
| Sound Jack | 3.5 |
Sensors & Features
| Sensors | Fingerprint (rear-mounted), accelerometer, proximity, compass |
Additional Info
| Models | RMX3201 |
| Pricing | $389 / R$ 1.985.96 / ₹7,999 / £199.99 / €119 / C$539.08 |
What's in the Box
| Realme C21 | Handset, USB-C cable, SIM ejector tool, and quick start guide |
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
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80% SPEC SCORE
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Frequently Asked Questions
Is the Realme C21 good for gaming?
The Realme C21 can handle light gaming, but it is not designed for demanding mobile games at high settings. Its MediaTek MT6765G Helio G35 processor and 3GB of RAM are better suited to casual titles and simpler 2D or low-intensity games. Buyers who mainly play graphics-heavy games should expect reduced settings and possible slowdowns on this entry-level hardware.
How long does the Realme C21 battery last?
The Realme C21 has a large 5000mAh battery, which is one of its strongest features for budget-phone buyers. Combined with a 720x1600 display and 60Hz refresh rate, the phone is built for long everyday use rather than high-performance power draw. Battery life will vary by usage, but the capacity is well suited for calls, messaging, video playback, and browsing throughout the day.
Is the Realme C21 display good for watching videos?
The Realme C21 offers a 6.5-inch display that gives enough screen space for watching videos, browsing, and social media. Its 720x1600 resolution is HD+ rather than Full HD, so it will not look as sharp as higher-resolution phones. The 60Hz refresh rate is standard for this price range and is adequate for video playback and everyday scrolling.
How much storage and RAM does the Realme C21 have?
The Realme C21 comes with 3GB of RAM and 32GB of internal storage. This configuration is suitable for essential Android use, but users who install many apps, save lots of videos, or download large games may find the storage limiting. For buyers comparing budget phones, the Realme C21 is best viewed as a practical entry-level device for core smartphone tasks.
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