Network
The Realme C21 supports a variety of network technologies including GSM, HSPA, and LTE. It provides a comprehensive band support for 2G, 3G, and 4G networks, making it versatile and usable in many regions across the world.
- 2G bands: GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
- 3G bands: HSDPA 850 / 900 / 2100
- 4G bands: 1, 3, 5, 7, 8, 20, 28, 38, 40, 41 - International
- Speed: HSPA, LTE
Launch
The Realme C21 was announced and released on March 5, 2021, capturing the attention of budget smartphone seekers looking for reliable performance at an affordable price.
Body
The Realme C21 has a robust build with dimensions of 165.2 x 76.4 x 8.9 mm and weighs 190 grams, making it a manageable size for comfortable handheld use. It features a glass front, with a plastic back and frame, ensuring durability.
- Dimensions: 165.2 x 76.4 x 8.9 mm
- Weight: 190 g
- SIM: Dual SIM (Nano-SIM, dual stand-by)
Display
The device sports a 6.5-inch IPS LCD display, which offers decent brightness levels of 400 nits and a moderate resolution of 720 x 1600 pixels, ensuring vivid and clear visuals for everyday use.
- Type: IPS LCD, 400 nits (typ)
- Size: 6.5 inches (~80.8% screen-to-body ratio)
- Resolution: 720 x 1600 pixels, 20:9 ratio (~270 ppi density)
Platform
Realme C21 operates on the Android 10 system, with Realme UI for customization and personalization. It is powered by the MediaTek Helio G35 chipset featuring an octa-core CPU configuration for efficient handling of tasks.
- OS: Android 10, Realme UI
- Chipset: Mediatek MT6765G Helio G35 (12 nm)
- CPU: Octa-core (4x2.3 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53)
- GPU: PowerVR GE8320
Memory
The device comes with different memory configurations of 32GB with 3GB RAM or 64GB with 4GB RAM. Additionally, it offers a dedicated microSDXC card slot for expandable storage, contributing to flexible data management
- Internal: 32GB 3GB RAM, 64GB 4GB RAM
- Card slot: microSDXC (dedicated slot)
Main Camera
The Realme C21 is equipped with a triple camera setup including a 13 MP main camera, a 2 MP macro lens, and a 2 MP depth sensor. It features LED flash, HDR and panorama modes, and can record videos at 1080p@30fps.
- 13 MP, f/2.2, 26mm (wide), PDAF
- 2 MP, f/2.4 (macro)
- 2 MP, f/2.4 (depth)
- Features: LED flash, HDR, panorama
- Video: 1080p@30fps
Selfie Camera
On the front, the device houses a 5 MP selfie camera that comes with HDR and panorama features. It also supports video recording at 1080p@30fps, allowing for decent quality video calls and self-portraits.
- 5 MP, f/2.2, (wide)
- Features: HDR, panorama
- Video: 1080p@30fps
Sound
The Realme C21 comes with a standard loudspeaker and a 3.5mm headphone jack, ensuring compatibility with a wide range of audio accessories.
- Loudspeaker: Yes
- 3.5mm jack: Yes
Communication
The device supports Wi-Fi, Bluetooth 5.0 for robust connectivity, and has GPS, GLONASS, and BDS for accurate location tracking. It also includes FM radio and a microUSB 2.0 port with OTG support for added versatility.
- WLAN: Wi-Fi 802.11 b/g/n
- Bluetooth: 5.0, A2DP, LE
- Positioning: GPS, GLONASS, BDS
- NFC: No
- Radio: FM radio
- USB: microUSB 2.0, OTG
Features
The Realme C21 integrates a variety of sensors including a rear-mounted fingerprint sensor, accelerometer, proximity sensor, and compass, equipping it with the ability to handle multiple functions and applications.
- Sensors: Fingerprint (rear-mounted), accelerometer, proximity, compass
Battery
The smartphone is powered by a substantial 5000 mAh battery providing extended usage time. It supports 10W wired charging and is also capable of reverse wired charging, which can be practical for sharing power with other devices.
- Type: 5000 mAh, non-removable
- Charging: 10W wired, Reverse wired
Miscellaneous
The Realme C21 is available in two color variants: Cross Black and Cross Blue. It provides an attractive budget-friendly choice with prices starting around ₹8,999.
- Colors: Cross Black, Cross Blue
- Models: RMX3201
- Price: ₹8,999
Main Features of Realme C21
- Supports GSM / HSPA / LTE network technologies.
- Released and available since March 2021.
- Compact design with dimensions: 165.2 x 76.4 x 8.9 mm and lightweight at 190g.
- 6.5-inch IPS LCD display with 400 nits brightness.
- Powered by Android 10 with Realme UI and Mediatek Helio G35 chipset.
- Expandable storage via microSDXC with a dedicated slot.
- Triple rear camera setup featuring a 13 MP main sensor, including macro and depth sensors.
- 5 MP wide selfie camera with HDR and panorama support.
- Equipped with a loudspeaker and a 3.5mm headphone jack.
- Connectivity includes Wi-Fi, Bluetooth 5.0, GPS, GLONASS, and FM radio.
- Includes fingerprint sensor, accelerometer, proximity, and compass sensors.
- Long-lasting 5000 mAh battery with reverse charging support.
Disadvantages of Realme C21
- The display resolution is relatively low at 720 x 1600 pixels, which may result in less sharp images and text compared to higher-resolution screens.
- Runs on Android 10, which is outdated as newer versions of Android are available.
- The Mediatek MT6765G Helio G35 processor is an entry-level chipset and may not handle intensive tasks or gaming smoothly.
- The base model offers only 3GB of RAM which might be insufficient for heavy multitasking.
- Internal storage is limited to 32GB in the base model, potentially requiring frequent management or use of a microSD card for more space.
- Selfie camera is only 5 MP, which may not satisfy users looking for high-quality front camera performance.
- The device lacks NFC support, limiting its ability to perform contactless payments and other NFC-based functions.
- Uses microUSB 2.0 which is an older standard compared to the newer USB-C found on more recent devices.
- Charging speed is limited to 10W, resulting in longer charging times for the 5000 mAh battery.
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