Category Breakdown
Realme C21
Realme C3
Performance
68.168.5
Camera
29.929.9
Display
67.569.8
Battery
33.733.7
Build
67.971.8
Connectivity
48.052.7
Audio
8.98.9
Overall
46.246.4
Summary
- The Realme C21 and Realme C3 both feature a 6.5-inch IPS LCD display with a resolution of 720 x 1600 pixels, but the C3 has a slightly brighter display at 480 nits compared to the C21's 400 nits.
- In terms of performance, the C21 is powered by the Helio G35 chipset, while the C3 uses the more capable Helio G70, which may provide better overall performance.
- The C21 has a 13 MP main camera, whereas the C3 has a 12 MP main camera, but the C21's wider aperture of f/2.2 may allow for better low-light performance.
- Both models have a 5000 mAh battery with 10W charging, ensuring similar longevity.
- The C21's build includes Gorilla Glass on the front, offering better durability than the C3's standard glass.
- Both phones run on Android 10 with Realme UI, providing a similar software experience.
Side-by-side Specification Comparison
Realme C21
Realme C3
General
Release Date
2021, March 05
2020, February 05
Announced
2021, March 05
2020, February 05
Description
N/A
N/A
Display
Size
6.5"
6.5"
Type
IPS LCD, 400 nits (typ)
IPS LCD, 480 nits (typ)
Resolution
720 x 1600 pixels, 20:9 ratio (~270 ppi density)
720 x 1600 pixels, 20:9 ratio (~270 ppi density)
PPI
720
720
Refresh Rate
60Hz
60Hz
HDR Support
✗
✗
Protection
N/A
Corning Gorilla Glass 3
Performance
Chipset
Mediatek MT6765G Helio G35 (12 nm)
Mediatek MT6769V/CB Helio G70 (12 nm)
CPU
Octa-core (4x2.3 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53)
Octa-core (2x2.0 GHz Cortex-A75 & 6x1.7 GHz Cortex-A55)
GPU
PowerVR GE8320
Mali-G52 2EEMC2
Memory
32GB 3GB RAM, 64GB 4GB RAM
32GB 2GB RAM, 32GB 3GB RAM, 64GB 3GB RAM, 64GB 4GB RAM
Expandable Storage
✗
✗
Card Slot
microSDXC (dedicated slot)
microSDXC (dedicated slot)
Camera
Main Camera
13 MP, f/2.2, 26mm (wide), 1/3.06", 1.12µm, PDAF2 MP, f/2.4, (macro)2 MP, f/2.4, (depth)
12 MP, f/1.8, 28mm (wide), 1/2.8", 1.25µm, PDAF2 MP, f/2.4, (depth)
Main Camera Features
LED flash, HDR, panorama
LED flash, HDR, panorama
Front Camera
5 MP, f/2.2, (wide), 1/5.0", 1.12µm
5 MP, f/2.4, 27mm (wide), 1/5.0", 1.12µm
Front Camera Features
HDR, panorama
HDR, panorama
Video Recording
1080p@30fps
1080p@30fps
Selfie Video
1080p@30fps
1080p@30fps
Optical Stabilization
✗
✗
Night Mode
✗
✗
Raw Photo Support
✗
✗
Battery
Capacity
5000 mAh
5000 mAh
Battery Details
5000 mAh
5000 mAh
Charging Details
10W wiredReverse wired
10W wired
Fast Charging
✗
✗
Wireless Charging
✗
✗
Build & Safety
Dimensions
165.2 x 76.4 x 8.9 mm (6.50 x 3.01 x 0.35 in)
164.4 x 75 x 9 mm (6.47 x 2.95 x 0.35 in)
Weight
190 g
195 g
Materials
Glass front, plastic back, plastic frame
Glass front (Gorilla Glass 3), plastic back, plastic frame
Colors
Cross Black, Cross Blue
Frozen Blue, Blazing Red, Volcano Grey shade
Foldable
✗
✗
SAR
N/A
N/A
Connectivity
SIM
Nano-SIM + Nano-SIM
Nano-SIM + Nano-SIM
Network
GSM / HSPA / LTE
GSM / HSPA / LTE
Network Speed
HSPA, LTE
HSPA 42.2/11.5 Mbps, LTE (2CA) Cat6 300/75 Mbps
5G
✗
✗
4G
✓
✓
WiFi
Wi-Fi 802.11 b/g/n
Wi-Fi 802.11 b/g/n
Bluetooth
5.0, A2DP, LE
5.0, A2DP, LE, aptX
NFC
✗
✗
USB
microUSB 2.0, OTG
microUSB 2.0, OTG
IR Blaster
✗
✗
Headphone Jack
✓
✓
Radio
✗
✗
Positioning
GPS, GLONASS, BDS
GPS, GLONASS, BDS
Audio
Stereo Speakers
✗
✗
Loudspeaker
Yes
Yes
Audio Jack
Yes
Yes
Software & Security
Operating System
Android 10, Realme UI
Android 10, Realme UI
Fingerprint
✓
✗
Face Unlock
✗
✗
Sensors
Fingerprint (rear-mounted), accelerometer, proximity, compass
Accelerometer, proximity, compass

