I Kall Z7 vs Realme C31

Key Specs

Battery
Battery	4000 mAh	5000 mAh
Display
Display	6.26 inches (15.9 cm)	6.5 inches (16.51 cm)
Front Camera
Front Camera	8 MP	5 MP
Processor
Processor	-	Unisoc T612
RAM
RAM	3 GB	3 GB
Rear Camera
Rear Camera	13 MP	13 MP + 2 MP + 0.3 MP

Battery

Capacity
Capacity	4000 mAh	5000 mAh
Removable
Removable	No	No
Type
Type	Li-ion	Li-Polymer
USB Type-C
USB Type-C	No	No

Design

Build Material
Build Material	-	Back: Plastic
Colours
Colours	Blue	Dark Green, Light Silver
Height
Height	-	164.7 mm
Thickness
Thickness	-	8.4 mm
Weight
Weight	-	197 grams Below
Width
Width	-	76.1 mm

Display

Aspect Ratio
Aspect Ratio	-	20:9
Bezel-less display
Bezel-less display	Yes with notch	Yes with waterdrop notch
Brightness
Brightness	-	400 nits
Display Type
Display Type	IPS LCD	IPS LCD
Pixel Density
Pixel Density	269 ppi	270 ppi
Refresh Rate
Refresh Rate	-	60 Hz
Resolution
Resolution	720x1520 px (HD+)	720x1600 px (HD+)
Screen Size
Screen Size	6.26 inches (15.9 cm)	6.5 inches (16.51 cm)
Screen to Body Ratio (calculated)
Screen to Body Ratio (calculated)	-	81.38 %
Screen to Body Ratio (claimed by the brand)
Screen to Body Ratio (claimed by the brand)	-	88.7 %
Touch Screen
Touch Screen	Yes, Capacitive Touchscreen, Multi-touch	Yes, Capacitive Touchscreen, Multi-touch

Front Camera

Camera Features
Camera Features	-	Fixed Focus
Camera Setup
Camera Setup	-	Single
Flash
Flash	-	Yes, Screen flash
Resolution
Resolution	8 MP, Primary Camera	5 MP f/2.2, Wide Angle, Primary Camera(5.0" sensor size, 1.12µm pixel size)
Sensor
Sensor	-	CMOS
Video Recording
Video Recording	1920x1080 fps	1280x720 @ 30 fps

Not sure which
mobile to buy?

General

Brand
Brand	I Kall	realme
Custom UI
Custom UI	-	Realme UI
Launch Date
Launch Date	December 14, 2021 (Official)	April 6, 2022 (Official)
Operating System
Operating System	Android v10 (Q)	Android v11

Main Camera

Autofocus
Autofocus	Yes	Yes
Camera Features
Camera Features	Digital Zoom Auto Flash	4 x Digital Zoom Auto Flash Face detection Touch to focus
Camera Setup
Camera Setup	Single	Triple
Flash
Flash	Yes, LED Flash	Yes, LED Flash
Image Resolution
Image Resolution	4128 x 3096 Pixels	4128 x 3096 Pixels
Resolution
Resolution	13 MP, Primary Camera	13 MP f/2.2, Wide Angle (81° field-of-view), Primary Camera(24.85 mm focal length, 3" sensor size, 1.12µm pixel size)2 MP f/2.4, Macro Camera(21.88 mm focal length, 5.0" sensor size, 1.75µm pixel size)0.3 MP f/2.8, Depth Camera(36.14 mm focal length)
Sensor
Sensor	-	IMX258, Exmor-RS CMOS Sensor
Settings
Settings	-	Exposure compensation, ISO control
Shooting Modes
Shooting Modes	-	Continuous Shooting High Dynamic Range mode (HDR) Macro Mode
Video Recording
Video Recording	-	1920x1080 @ 30 fps 1280x720 @ 30 fps

Multimedia

Audio Jack
Audio Jack	3.5 mm	3.5 mm
FM Radio
FM Radio	-	No
Loudspeaker
Loudspeaker	Yes	Yes

Network & Connectivity

Bluetooth
Bluetooth	Yes	Yes, v5.0
GPS
GPS	Yes with A-GPS	Yes with A-GPS
NFC
NFC	-	No
Network Support
Network Support	5G Not Supported in India, 4G Supported in India, 3G, 2G	5G Not Supported in India, 4G Supported in India, 3G, 2G
SIM 1
SIM 1	4G Bands: TD-LTE 2300(band 40) FD-LTE 1800(band 3) 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
SIM 2	4G Bands: TD-LTE 2300(band 40) FD-LTE 1800(band 3) 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
SIM Size	-	SIM1: Nano, SIM2: Nano
SIM Slot(s)
SIM Slot(s)	Dual SIM, GSM+GSM	Dual SIM, GSM+GSM
USB Connectivity
USB Connectivity	Mass storage device, USB charging, microUSB	Mass storage device, USB charging, microUSB 2.0
VoLTE
VoLTE	Yes	Yes
Wi-Fi
Wi-Fi	Yes, Wi-Fi 4 (802.11 b/g/n)	Yes, Wi-Fi 4 (802.11 b/g/n) 5GHz, MIMO
Wi-Fi Features
Wi-Fi Features	Mobile Hotspot	Mobile Hotspot

Performance

Architecture
Architecture	-	64 bit
CPU
CPU	Quad core, 1.3 GHz	Octa core (1.82 GHz, Dual core, Cortex A75 + 1.8 GHz, Hexa Core, Cortex A55)
Chipset
Chipset	-	Unisoc T612
Fabrication
Fabrication	-	12 nm
Graphics
Graphics	-	Mali-G57 MP1
RAM type
RAM Type	-	LPDDR4X

Sensors

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

Storage

Expandable Memory
Expandable Memory	Yes, Up to 128 GB	Yes, Up to 1 TB
Internal Memory
Internal Memory	32 GB	32 GB
Storage Type
Storage Type	-	UFS 2.2
USB OTG
USB OTG	-	Yes