Karbonn X21 vs Tecno Pop 8

Key Specs

Battery
3000 mAh	-
Display
5.45 inches (13.84 cm)	-
Front Camera
5 MP	-
Processor
Unisoc SC9863	-
RAM
2 GB	-
Rear Camera
8 MP	-

Audio

Audio Features
-	DTS Sound
Audio Jack
-	3.5 mm
Loudspeaker
-	Yes
Stereo Speakers
-	Yes

Battery

Capacity
3000 mAh	5000 mAh
Removable
Yes	No
Standby time
-	Up to 912 Hours(2G)
Type
Li-ion	Li-Polymer
USB Type-C
No	Yes

Camera

Autofocus
-	Yes, Phase Detection autofocus
Flash
-	Yes, Dual LED Flash
Front Camera
-	8 MP
Image Resolution
-	4000 x 3000 Pixels
Rear Camera
-	12 MP
Shooting Modes
-	Continuous Shooting High Dynamic Range mode (HDR)
Video Recording
-	1920x1080 @ 30 fps

Design

Build Material
-	Back: Plastic
Colours
Midnight Blue, Aqua Green	Mystery White, Alpenglow Gold, Gravity Black
Height
147.5 mm	-
Thickness
9.3 mm	-
Weight
160 grams	186 grams
Width
71.8 mm	-

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Dimensions

Height
-	163.69 mm
Thickness
-	8.55 mm
Width
-	75.6 mm

Display

Aspect Ratio
18:9	20.1:9
Bezel-less display
Yes	Yes with punch-hole display
Brightness
-	480 nits
Display Type
IPS LCD	IPS LCD
Pixel Density
295 ppi	269 ppi
Refresh Rate
-	90 Hz
Resolution
720x1440 px (HD+)	720x1612 px (HD+)
Screen Size
5.45 inches (13.84 cm)	6.56 inches (16.66 cm)
Screen to Body Ratio (calculated)
72.38 %	-
Screen to Body Ratio (claimed by the brand)
-	90.8 %
Touch Screen
Yes, Capacitive Touchscreen, Multi-touch	-

Front Camera

Resolution
5 MP, Primary Camera	-

General

Brand
Karbonn	Tecno
Custom UI
Android Go	HiOS
Launch Date
June 15, 2021 (Official)	January 9, 2024
Operating System
Android v10	Android v13

Main Camera

Camera Features
Digital Zoom	-
Camera Setup
Single	-
Flash
Yes, LED Flash	-
Image Resolution
3264 x 2448 Pixels	-
OIS
No	-
Resolution
8 MP, Primary Camera	-
Shooting Modes
Burst mode	-

Multimedia

Audio Jack
3.5 mm	-
Loudspeaker
Yes	-

Network & Connectivity

Bluetooth
Yes, v4.2	Yes, v5.0
GPS
Yes with A-GPS	Yes with A-GPS
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: 0.807 W/kg, Body: 1.152 W/kg	-
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
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
SIM1: Nano, SIM2: Nano	SIM1: Nano, SIM2: Nano
SIM Slot(s)
Dual SIM, GSM+GSM	Dual SIM, GSM+GSM, Dual VoLTE
USB Connectivity
Mass storage device, USB charging, microUSB 2.0	-
VoLTE
Yes	Yes
Wi-Fi
Yes, Wi-Fi 4 (802.11 a/b/g/n)	Yes, Wi-Fi 5 (802.11 b/g/n/ac) 5GHz
Wi-Fi Features
Mobile Hotspot	-

Performance

Architecture
64 bit	-
CPU
Octa core, 1.6 GHz, Cortex A55	-
Chipset
Unisoc SC9863	-
Graphics
PowerVR GE8322	Mali-G57
Processor
-	Unisoc T606
RAM
2 GB	4 GB
RAM Type
-	LPDDR4X

Sensors

Fingerprint Sensor
No	Yes
Other Sensors
Light sensor, Proximity sensor, Accelerometer	Light sensor, Proximity sensor, Accelerometer, Compass

Storage

Expandable Memory
Yes, Up to 256 GB	Yes, Up to 1 TB
Internal Memory
32 GB	64 GB
Storage Type
-	UFS 2.2