Realme C51 vs Realme Narzo 20a

Key Specs

Battery
-	5000 mAh
Display
-	6.5 inches (16.51 cm)
Front Camera
-	8 MP
Processor
-	Qualcomm Snapdragon 665
RAM
-	3 GB
Rear Camera
-	12 MP + 2 MP + 2 MP

Audio

Audio Jack
3.5 mm	-
Loudspeaker
Yes	-

Battery

Capacity
5000 mAh	5000 mAh
Quick Charging
Yes, Super VOOC, 33W: 50 % in 28 minutes	-
Removable
No	No
Standby time
-	Up to 960 Hours(2G)
Type
Li-Polymer	Li-ion
USB Type-C
Yes	No

Camera

Autofocus
Yes, Phase Detection autofocus	-
Flash
Yes, LED Flash	-
Front Camera
5 MP	-
Image Resolution
8150 x 6150 Pixels	-
Rear Camera
50 MP + 0.08 MP	-
Shooting Modes
Continuous Shooting High Dynamic Range mode (HDR)	-
Video Recording
1280x720 @ 30 fps	-

Design

Colours
Mint Green, Carbon Black	Victory Blue, Glory Silver
Height
-	164.4 mm
Thickness
-	8.9 mm
Weight
186 grams	195 grams Below
Width
-	75.4 mm

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Dimensions

Height
167.2 mm	-
Thickness
7.9 mm	-
Width
76.7 mm	-

Display

Aspect Ratio
20:9	20:9
Bezel-less display
Yes with waterdrop notch	Yes with waterdrop notch
Brightness
560 nits	400 nits
Display Type
IPS LCD	IPS LCD
Pixel Density
260 ppi	270 ppi
Refresh Rate
90 Hz	60 Hz
Resolution
720x1600 px (HD+)	720x1600 px (HD+)
Screen Protection
-	Corning Gorilla Glass v3
Screen Size
6.74 inches (17.12 cm)	6.5 inches (16.51 cm)
Screen to Body Ratio (calculated)
-	82.29 %
Screen to Body Ratio (claimed by the brand)
90.3 %	89.8 %
Touch Screen
-	Yes, Capacitive Touchscreen, Multi-touch

Front Camera

Camera Features
-	Fixed Focus
Camera Setup
-	Single
Flash
-	Yes, Screen flash
Resolution
-	8 MP f/2.0, Wide Angle, Primary Camera(4.0" sensor size, 1.12µm pixel size)
Sensor
-	CMOS
Video Recording
-	1920x1080 @ 30 fps 1280x720 @ 30 fps

General

Brand
realme	realme
Custom UI
Realme UI	Realme UI
Launch Date
September 4, 2023	September 21, 2020
Operating System
Android v13	Android v10 (Q)
SAR Value
Head: 1.183 W/kg, Body: 0.775 W/kg	-

Main Camera

Autofocus
-	Yes, Phase Detection autofocus
Camera Features
-	Digital Zoom Auto Flash Face detection Touch to focus
Camera Setup
-	Triple
Flash
-	Yes, LED Flash
Image Resolution
-	4000 x 3000 Pixels
Resolution
-	12 MP f/1.8, Wide Angle (75° field-of-view), Primary Camera(28 mm focal length, 2.8" sensor size, 1.25µm pixel size)2 MP f/2.4, Depth Camera(22 mm focal length, 5.0" sensor size, 1.75µm pixel size)2 MP f/2.4, Macro Camera(22 mm focal length, 5.0" sensor size, 1.75µm pixel size)
Sensor
-	CMOS image sensor
Settings
-	Exposure compensation, ISO control
Shooting Modes
-	Continuous Shooting High Dynamic Range mode (HDR)
Video Recording
-	3840x2160 @ 30 fps 1920x1080 @ 30 fps

Multimedia

Audio Jack
-	3.5 mm
FM Radio
-	Yes
Loudspeaker
-	Yes

Network & Connectivity

Bluetooth
Yes, v5.0	Yes, v4.2
GPS
Yes with A-GPS, Glonass	Yes with A-GPS, Glonass
NFC
No	No
Network Support
5G Not Supported in India, 4G Supported in India, 3G, 2G	5G Not Supported in India, 4G Supported in India, 3G, 2G
SAR Value
-	Head: 1.18 W/kg, Body: 0.631 W/kg
SIM 1
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 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 GPRS: Available EDGE: Available
SIM 2
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 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 GPRS: Available EDGE: Available
SIM Size
SIM1: Nano, SIM2: Nano	SIM1: Nano, SIM2: Nano
SIM Slot(s)
Dual SIM, GSM+GSM	Dual SIM, GSM+GSM
USB Connectivity
-	Mass storage device, USB charging, microUSB 2.0
VoLTE
Yes	Yes
Wi-Fi
Yes, Wi-Fi 5 (802.11 a/b/g/n/ac) 5GHz, MIMO	Yes, Wi-Fi 4 (802.11 b/g/n)
Wi-Fi Features
-	Mobile Hotspot

Performance

Architecture
-	64 bit
CPU
-	Octa core (2 GHz, Quad core, Kryo 260 + 1.8 GHz, Quad core, Kryo 260)
Chipset
-	Qualcomm Snapdragon 665
Fabrication
-	11 nm
Graphics
Mali-G57	Adreno 610
Processor
Unisoc T612	-

Sensors

Fingerprint Sensor
Yes	Yes
Fingerprint Sensor Position
-	Rear
Other Sensors
Light sensor, Proximity sensor, Accelerometer, Compass, Gyroscope	Light sensor, Proximity sensor, Accelerometer, Gyroscope

Storage

Expandable Memory
Yes, Up to 2 TB	Yes, Up to 256 GB
Internal Memory
64 GB	32 GB
Storage Type
-	eMMC 5.1
USB OTG
-	Yes