Apple iPhone 15 Plus vs Karbonn X21

Key Specs

Battery
4383 mAh	3000 mAh
Display
6.7 inches (17.02 cm)	5.45 inches (13.84 cm)
Front Camera
12 MP	5 MP
Processor
Apple A16 Bionic	Unisoc SC9863
RAM
6 GB	2 GB
Rear Camera
48 MP + 12 MP	8 MP

Battery

Capacity
4383 mAh	3000 mAh
Quick Charging
Yes, Fast, 20W: 50 % in 30 minutes	-
Removable
No	Yes
Type
Li-ion	Li-ion
USB Type-C
Yes	No
Wireless Charging
Yes	-

Design

Build Material
Back: Gorilla Glass	-
Colours
Black, Blue, Green, Pink, Yellow	Midnight Blue, Aqua Green
Height
160.9 mm	147.5 mm
Ruggedness
Dust proof	-
Thickness
7.8 mm	9.3 mm
Waterproof
Yes, Water resistant (up to 30 minutes in a depth of 6 meter), IP68	-
Weight
201 grams Below	160 grams
Width
77.8 mm	71.8 mm

Display

Aspect Ratio
19.5:9	18:9
Bezel-less display
Yes with punch-hole display	Yes
Brightness
2000 nits	-
Display Type
OLED	IPS LCD
HDR 10 / HDR+ support
Yes	-
Pixel Density
460 ppi	295 ppi
Refresh Rate
60 Hz	-
Resolution
1290x2796 px (FHD+)	720x1440 px (HD+)
Screen Protection
Yes	-
Screen Size
6.7 inches (17.02 cm)	5.45 inches (13.84 cm)
Screen to Body Ratio (calculated)
87.84 %	72.38 %
Touch Screen
Yes, Capacitive Touchscreen, Multi-touch	Yes, Capacitive Touchscreen, Multi-touch

Front Camera

Autofocus
Yes	-
Camera Setup
Single	-
Flash
Yes, Retina Flash	-
Resolution
12 MP f/1.9, Wide Angle, Primary Camera(23 mm focal length)	5 MP, Primary Camera

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General

Brand
Apple	Karbonn
Custom UI
-	Android Go
Launch Date
September 13, 2023 (Official)	June 15, 2021 (Official)
Operating System
iOS v17	Android v10

Main Camera

Autofocus
Yes, Phase Detection autofocus, Dual Pixel autofocus	-
Camera Features
10 x Digital Zoom Auto Flash Face detection Touch to focus	Digital Zoom
Camera Setup
Dual	Single
Flash
Yes, Dual-color LED Flash	Yes, LED Flash
Image Resolution
8000 x 6000 Pixels	3264 x 2448 Pixels
OIS
Yes	No
Resolution
48 MP f/1.6, Wide Angle, Primary Camera(1µm pixel size)12 MP f/2.4, Ultra-Wide Angle Camera(13 mm focal length)	8 MP, Primary Camera
Sensor
Sensor-shift Image Stabilization	-
Settings
Exposure compensation, ISO control	-
Shooting Modes
Continuous Shooting High Dynamic Range mode (HDR) Burst mode	Burst mode
Video Recording
3840x2160 @ 24 fps 1920x1080 @ 30 fps	-
Video Recording Features
Slo-motion Video HDR Night Time-Lapse Action Mode ProRes Video Audio Zoom Stereo recording	-

Multimedia

Audio Features
Dolby Atmos, Dolby Digital, Dolby Digital Plus	-
Audio Jack
USB Type-C	3.5 mm
FM Radio
No	-
Loudspeaker
Yes	Yes
Stereo Speakers
Yes	-

Network & Connectivity

Bluetooth
Yes, v5.3	Yes, v4.2
GPS
Yes with A-GPS, Glonass	Yes with A-GPS
NFC
Yes	No
Network Support
5G Supported in India, 4G Supported in India, 3G, 2G	5G Not Supported in India, 4G Supported in India, 3G, 2G
SAR Value
Head: 1.01 W/kg, Body: 1.12 W/kg	Head: 0.807 W/kg, Body: 1.152 W/kg
SIM 1
5G Bands: FDD N1 / N2 / N3 / N5 / N7 / N8 / N12 / N20 / N25 / N26 / N28 / N30 TDD N38 / N40 / N41 / N48 / N53 / N70 / N77 / N78 / N79 4G Bands: TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41) / 2100(band 34) / 1900(band 39) / 3500(band 42) FD-LTE 2100(band 1) / 1800(band 3) / 2600(band 7) / 900(band 8) / 700(band 28) / 1900(band 2) / 1700(band 4) / 850(band 5) / 700(band 13) / 700(band 17) / 850(band 18) / 850(band 19) / 800(band 20) / 1900(band 25) / 850(band 26) / 2300(band 30) 3G Bands: UMTS 1900 / 2100 / 850 / 900 MHz 2G Bands: GSM 1800 / 1900 / 850 / 900 MHz GPRS: Available EDGE: Available	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
SIM 2
5G Bands: FDD N1 / N2 / N3 / N5 / N7 / N8 / N12 / N20 / N25 / N26 / N28 / N30 TDD N38 / N40 / N41 / N48 / N53 / N66 / N70 / N77 / N78 / N79 4G Bands: TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41) / 2100(band 34) / 1900(band 39) / 3500(band 42) FD-LTE 2100(band 1) / 1800(band 3) / 2600(band 7) / 900(band 8) / 700(band 28) / 1900(band 2) / 1700(band 4) / 850(band 5) / 700(band 13) / 700(band 17) / 850(band 18) / 850(band 19) / 800(band 20) / 1900(band 25) / 850(band 26) / 2300(band 30) 3G Bands: UMTS 1900 / 2100 / 850 / 900 MHz 2G Bands: GSM 1800 / 1900 / 850 / 900 MHz GPRS: Available EDGE: Available	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
SIM Size
SIM1: Nano, SIM2: eSIM	SIM1: Nano, SIM2: Nano
SIM Slot(s)
Dual SIM, GSM+GSM	Dual SIM, GSM+GSM
USB Connectivity
Mass storage device, USB charging	Mass storage device, USB charging, microUSB 2.0
VoLTE
Yes	Yes
Wi-Fi
Yes, Wi-Fi 6E (802.11 a/b/g/n/ac/ax) 5GHz 6GHz, MIMO	Yes, Wi-Fi 4 (802.11 a/b/g/n)
Wi-Fi Calling
Yes	-
Wi-Fi Features
Mobile Hotspot	Mobile Hotspot

Performance

Architecture
64 bit	64 bit
CPU
Hexa Core (3.46 GHz, Dual core, Everest + 2.02 GHz, Quad core, Sawtooth)	Octa core, 1.6 GHz, Cortex A55
Chipset
Apple A16 Bionic	Unisoc SC9863
Fabrication
4 nm	-
Graphics
Apple GPU (Five-core graphics)	PowerVR GE8322
RAM type
LPDDR5	-

Sensors

Fingerprint Sensor
No	No
Other Sensors
Light sensor, Proximity sensor, Accelerometer, Barometer, Compass, Gyroscope	Light sensor, Proximity sensor, Accelerometer

Storage

Expandable Memory
No	Yes, Up to 256 GB
Internal Memory
128 GB	32 GB
Storage Type
NVMe	-