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Realme C21 vs Xiaomi Redmi Note 9 vs Realme 3

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Last Updated: 
12th May 2021

Key Feature Comparison

Realme C21
₹8,599
Xiaomi Redmi Note 9
₹10,999
8/10
Realme 3
₹8,499
8/10
Realme C21
Realme C21
₹8,599
VS
Xiaomi Redmi Note 9
Xiaomi Redmi Note 9
8/10
₹10,999
8/10
VS
Realme 3
Realme 3
8/10
₹8,499
8/10
Display
Screen Size
6.5 inches
6.53 inches
6.2 inches
Screen Type
IPS LCD
IPS LCD
IPS LCD
Screen Resolution
720 x 1600 pixels
1080 x 2340 pixels
720 x 1520 pixels
Pixel Density
270 ppi
395 ppi
271 ppi
Aspect Ratio
20:09
19.5:9
19:09
Screen Protection
Corning Gorilla Glass 3
Corning Gorilla Glass v5
Corning Gorilla Glass v3
Screen to Body Ratio
89.50%
84.37%
88.30%
Screen Design
Waterdrop Notch
Punch-Hole Display
Waterdrop Notch
Screen Refresh Rate
60 Hz
60 Hz
-
Screen Quality
HD
FHD
HD
Peak Brightness
400 nits
450 nits
-
Performance
GPU
PowerVR GE8320
Mali-G52
Mali-G72 MP3
Operating System
Android v10 (Q)
Android v10 (Q)
Android v9.0 (Pie)
Chipset
MediaTek Helio G35
MediaTek Helio G85
MediaTek Helio P70
CPU
Octa core, 2.3 GHz, Cortex A53
Octa core (2 GHz, Dual core, Cortex A75 + 2 GHz, Hexa Core, Cortex A55)
Octa core (2.1 GHz, Quad core, Cortex A73 + 2 GHz, Quad core, Cortex A53)
Custom User Interface
Realme UI
MIUI
Realme UI
Clock Speed
2.3 GHz
2 GHz
2.1 GHz
Architecture
64 bit
64 bit
64 bit
Process Technology
12 nm
12 nm
12 nm
General
Announced On
8-Apr-2021
30-Apr-20
5-Mar-19
Market Status
Available
Available
Available
Brand
Realme
Xiaomi
Realme
Price Status
Confirmed
Confirmed
Confirmed
Price
Rs. 7,999
Rs. 10,999
Rs. 8,499
Miscellaneous Features
Sensors
Light sensor, Proximity sensor, Accelerometer
Light sensor, Proximity sensor, Accelerometer, Compass, Gyroscope
Light sensor, Proximity sensor, Accelerometer, Compass
Memory & Storage
Phone Variants
64GB 4GB RAM, 32GB 3GB RAM
64GB 4GB RAM, 128GB 4GB RAM, 128GB 6GB RAM
64 GB, 3/4 GB RAM, 32 GB, 3 GB RAM
Expandable Storage
Yes
Yes
Yes
RAM Type
LPDDR4X
LPDDR4X
LPDDR3
Storage Type
eMMC 5.1
eMMC 5.1
eMMC 5.1
Expandable Storage Capacity
Yes, 256 GB
Yes, 512 GB
Yes, 256 GB
OTG Support
Yes
Yes
Yes
Battery
Battery Capacity
5000 mAh
5020 mAh
4230 mAh
Battery Removable
No
No
No
Battery Type
Li-ion
Li-ion
Li-ion
USB Type-C
No
Yes
No
Charger Type
-
Fast, 22.5W
-
Fast Charging
-
Yes
-
Network & Connectivity
GPS
Yes A-GPS, Glonass
Yes A-GPS, Glonass
Yes A-GPS, Glonass
NFC
No
Yes
No
Bluetooth
Yes
Yes
Yes
3.5mm Audio Jack
Yes
Yes
Yes
Bluetooth Type
v5.0
v5.0
v4.2
Audio Jack
3.5 mm
3.5 mm
3.5 mm
Front Camera
Front Video Recording
1920x1080 @ 30 fps
1920x1080 @ 30 fps
1920x1080 @ 30 fps
Front Camera Features
Fixed Focus
HDR, panorama
HDR
Front Camera Setup
Single, 5MP
Single, 13MP
Single, 13MP
Front Camera 1 Resolution
5 MP
13 MP
13 MP
Front Camera 1 Type
f/2.2, Wide Angle Primary Camera
f/2.25 Primary Camera
f/2.0, Wide Angle Primary Camera
Front Camera 1 Lens
5.0" sensor size, 1.12 micrometre pixel size
3" sensor size, 1.12 micrometre pixel size
3" sensor size, 1.12 micrometre pixel size
Front Aperture
f/2.2
f/2.25
f/2.0
Design
Weight
190 grams
200 grams
175 grams
Colors
Cross Blue, Cross Black
Pebble Grey, Arctic White, Aqua Green
Dynamic Black, Radiant Blue, Classic Black
Build
Back: Plastic
Glass front (Gorilla Glass 5), plastic frame
Back: Plastic
Dimensions
165.2 x 76.4 x 8.9 mm
161.4 x 76.7 x 8.7 mm
156.1 x 75.6 x 8.3 mm
IP Certification
-
Yes, Splash proof
-
SAR Value
-
Head: 0.853 W/kg, Body: 0.433 W/kg
-
Network
Network Support
4G (supports Indian bands), 3G, 2G
4G (supports Indian bands), 3G, 2G
4G (supports Indian bands), 3G, 2G
SIM Size
SIM1: Nano, SIM2: Nano
SIM1: Nano, SIM2: Nano
SIM1: Nano, SIM2: Nano
Wi-Fi
Yes, Wi-Fi 802.11, b/g/n, MIMO
Yes, Wi-Fi 802.11, a/b/g/n
Yes, Wi-Fi 802.11, b/g/n/n 5GHz
SIM Slot(s)
Dual SIM, GSM+GSM
Dual SIM, GSM+GSM
Dual SIM, GSM+GSM, Dual VoLTE
eSIM
No
No
No
Wi-Fi Features
Mobile Hotspot
Wi-Fi Direct, Mobile Hotspot
Mobile Hotspot
VoLTE
Yes
Yes
Yes
SIM 1 Bands
4G Bands: TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41), FD-LTE 2100(band 1) / 1800(band 3) / 2600(band 7) / 900(band 8) / 700(band 28) / 850(band 5) / 800(band 20), 3G Bands: UMTS 1900 / 2100 / 850 / 900 MHz, 2G Bands: GSM 1800 / 1900 / 850 /...
4G Bands: TD-LTE 2300(band 40) / 2500(band 41), FD-LTE 2100(band 1) / 1800(band 3) / 900(band 8) / 850(band 5), 3G Bands: UMTS 1900 / 2100 / 850 / 900 MHz, 2G Bands: GSM 1800 / 1900 / 850 / 900 MHz, GPRS: Available, EDGE: Available...
4G Bands: TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41), FD-LTE 2100(band 1) / 1800(band 3) / 900(band 8) / 850(band 5), 3G Bands: UMTS 1900 / 2100 / 850 / 900 MHz, 2G Bands: GSM 1800 / 1900 / 850 / 900 MHz, 4G Speed: 50 Mbit/s 150 Mbit/s (L...
SIM 2 Bands
4G Bands: TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41), FD-LTE 2100(band 1) / 1800(band 3) / 2600(band 7) / 900(band 8) / 700(band 28) / 850(band 5) / 800(band 20), 3G Bands: UMTS 1900 / 2100 / 850 / 900 MHz, 2G Bands: GSM 1800 / 1900 / 850 /...
4G Bands: TD-LTE 2300(band 40) / 2500(band 41), FD-LTE 2100(band 1) / 1800(band 3) / 900(band 8) / 1900(band 2) / 850(band 5), 3G Bands: UMTS 1900 / 2100 / 850 / 900 MHz, 2G Bands: GSM 1800 / 1900 / 850 / 900 MHz, GPRS: Available, EDGE: Available...
4G Bands: TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41), FD-LTE 2100(band 1) / 1800(band 3) / 900(band 8) / 850(band 5), 3G Bands: UMTS 1900 / 2100 / 850 / 900 MHz, 2G Bands: GSM 1800 / 1900 / 850 / 900 MHz, 4G Speed: 50 Mbit/s 150 Mbit/s , G...
Rear Camera
Rear Flash
Yes, LED Flash
Yes, LED Flash
Yes, LED Flash
Rear Video Recording
1920x1080 @ 30 fps
3840x2160 @ 30 fps
1920x1080 @ 30 fps
Rear Camera Features
4 x Digital Zoom, Auto Flash, Face detection, Touch to focus
Digital Zoom, Auto Flash, Face detection, Touch to focus
2 x Digital Zoom, Auto Flash, Face detection, Touch to focus
Rear Camera Setup
Triple, 13MP + 2MP + 2MP
Quad, 48MP + 8MP + 2MP + 2MP
Dual, 13MP + 2MP
Rear Camera 1 Resolution
13 MP
48 MP
13 MP
Rear Camera 1 Type
f/2.2 (upto 4x Digital Zoom), Wide Angle Primary Camera
f/1.79 Primary Camera
f/1.8 (upto 2x Digital Zoom) Primary Camera
Rear Camera 1 Lens
26 mm focal length, 3" sensor size, 1.12 micrometre pixel size
2" sensor size, 0.8 micrometre pixel size
3" sensor size, 1.12 micrometre pixel size
Rear Camera 2 Resolution
2 MP
8 MP
2 MP
Rear Camera 2 Type
f/2.4, Macro Camera
f/2.2, Wide Angle, Ultra-Wide Angle Camera
f/2.4, Depth Camera
Rear Camera 2 Lens
1.75 micrometre pixel size
4.0" sensor size
1.75 micrometre pixel size
Rear Camera 3 Resolution
2 MP
2 MP
-
Rear Camera 3 Type
f/2.4 Mono Camera
f/2.4, Macro Camera
-
Rear Camera 3 Lens
1.75 micrometre pixel size
1.75 micrometre pixel size
-
Rear Sensor
CMOS image sensor
ISOCELL Plus
CMOS image sensor
Rear Aperture
f/2.2
f/1.79
f/1.8
Rear Camera 4 Resolution
-
2 MP
-
Rear Camera 4 Type
-
f/2.4, Depth Camera
-
Rear Camera 4 Lens
-
5.0" sensor size
-
Sensors
Fingerprint Scanner
Yes
Yes
Yes
Fingerprint Scanner Position
Rear
Rear
Rear

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