Karbonn A21 Plus vs Karbonn K121

Comparing the Karbonn A21 Plus vs Karbonn K121 across display, camera and battery to help determine the better smartphone.

Here is the summary of the results:

Display: Karbonn A21 Plus offers a screen size of 5 inches, while Karbonn K121 offers 1.8 inches, making Karbonn A21 Plus the larger display of the two. Both Karbonn A21 Plus and Karbonn K121 feature the same TFT display.

Rear Camera: Karbonn A21 Plus offers a higher rear camera resolution with 5 MP, while Karbonn K121 offers 0.3 MP, making Karbonn A21 Plus better for rear camera photography.

Battery: Karbonn A21 Plus offers a higher battery capacity with 2000 mAh, while Karbonn K121 offers 1800 mAh, making Karbonn A21 Plus better for longer battery life.

Karbonn A21 Plus

₹8,290

(Out of Stock)

Karbonn K121

(Discontinued)

Summary

Release Date

03 Sep, 2013

N/A

14 May, 2026

Performance

N/A	N/A
N/A	N/A	Snapdragon 8 Elite Gen 5
(upto 1 GHz)	N/A	Octa Core (upto 4.61 GHz)
512 MB RAM	N/A	16 GB RAM

Display

N/A	N/A
5 inches (12.7 cm)	1.8 inches (4.57 cm)	6.82 inches (17.32 cm)
TFT	TFT	AMOLED
480x854 px	128x160 px	1440x3168 px (QHD+)
N/A	N/A	144 Hz Refresh Rate

Rear Camera

N/A	N/A
5 MP Primary Camera	0.3 MP Primary Camera	200 MP Primary Camera (upto 3.7x Optical Zoom)
N/A	N/A	200 MP Telephoto Camera
N/A	N/A	50 MP Ultra-Wide Angle Camera

Front Camera

N/A	N/A
0.3 MP	N/A	50 MP

Battery

N/A	N/A
2000 mAh	1800 mAh	6600 mAh
N/A	N/A	100W Flash Charging
N/A	N/A	Wireless Charging

Storage

4 GB	N/A	512 GB
N/A	N/A	UFS 4.1

Expert Review

N/A

8.7/10

Read Expert Review

Pros

Device yet to be reviewed

Device yet to be reviewed

Stellar and versatile three-lens camera system
Excellent performance
Bright and crisp 2K AMOLED display

Cons

Device yet to be reviewed

Device yet to be reviewed

Battery life could have been better
Very expensive with camera kit
No shortcut key

User Ratings

2.6/5

(13 ratings)

N/A

4.6/5

(29 ratings)

Benchmarks (The higher, the better)

N/A	N/A	3,977,648 AnTuTu Score
N/A	N/A	15h 10m Battery Life (PC Mark)

Compare Prices

Not Available in any store

₹159,999

@ Amazon

Video

There are no videos available for the device.

1 Video

User Feedback

General

Launch Date

Sep 03, 2013

N/A

May 06, 2026

(Official)

Operating System

Android v4.2 (Jelly Bean)

N/A

Android v16

OS Updates

N/A

5 Year

Security Updates

N/A

7 Year

Custom UI

N/A

Origin OS

Performance

Performance Rating

N/A

Best In Class

Chipset

N/A

Qualcomm Snapdragon 8 Elite Gen 5 SM8850-AC

Processor

Dual core, 1 GHz

N/A

Octa core

4.61 GHz, Dual core, Oryon 3.62 GHz, Hexa Core, Oryon

Architecture (The higher, the better)

N/A

64 bit

Fabrication (The lower, the better)

N/A

3 nm

Graphics (GPU)

N/A

Adreno 840

RAM

512 MB

N/A

16 GB

RAM Type

N/A

LPDDR5X Ultra

Performance Test Results

AnTuTu Score (The higher, the better) AnTuTu benchmark measures overall performance of a phone by stress-testing CPU, GPU, RAM, etc.

N/A

3,977,648

Bootup Time (The lower, the better)

N/A

14.0 s

Gaming Test Results

Wild Life Extreme (The higher, the better) Wild Life Extreme is a classic mobile benchmark; it renders in 4K to test the peak performance of a wide range of devices.

N/A

6,450

Battery Drain* (The lower, the better)

N/A

7.0 %

Heating* (The lower, the better)

N/A

21.7 %

* after 30 mins of gaming

Display

Display Rating

N/A

Best In Class

Display Type

TFT

AMOLED

Screen Size

5 inches (12.7 cm)

1.8 inches (4.57 cm)

6.82 inches (17.32 cm)

Resolution

480x854 px

128x160 px

1440x3168 px (QHD+)

Peak Brightness

N/A

4500 nits

Refresh Rate

N/A

144 Hz

Aspect Ratio

N/A

19.8:9

Pixel Density

196 ppi

114 ppi

510 ppi

Screen to Body Ratio (calculated)

101.64 %

N/A

89.7 %

Screen Protection

N/A

Yes

Bezel-less Display

N/A

Yes with punch-hole display

HDR 10 / HDR+ Support

N/A

Yes

Screen to Body Ratio (claimed by the brand)

N/A

94.49 %

Design

Height

112 mm

N/A

162.98 mm

Width

60.5 mm

N/A

76.81 mm

Thickness

11.5 mm

N/A

8.19 mm

Weight

104 grams

N/A

232 grams

Build Material

N/A

Back: Glass

Rear Camera

Rear Camera Rating

N/A

Best In Class

Resolution

5 MP
Primary Camera

0.3 MP
Primary Camera

200 MP
Primary Camera105x Digital Zoom 3.7x Optical Zoomf/1.8535 mm focal length LYT 901 0.7µm pixel size

N/A

200 MP
f/2.67 Telephoto Camera85 mm focal length 1/1.28" sensor size

N/A

50 MP
f/2.0 Ultra-Wide Angle Camera14 mm focal length

Autofocus

Yes

N/A

Yes

OIS

N/A

Yes

Flash

Yes LED Flash

N/A

Yes Dual LED Flash

Image Resolution

2592 x 1944 Pixels

640 x 480 Pixels

N/A

Camera Features

Digital Zoom

105 x Digital Zoom
3.7 x Optical Zoom

Video Recording

N/A

8k @30 fps
4k @30/60/120 fps
Full HD @30/60/120 fps

Front Camera

Front Camera Rating

N/A

Best In Class

Resolution

0.3 MP
Primary Camera

N/A

50 MP
f/2.45 Primary Camera

Flash

N/A

Yes Screen flash

Battery

Battery Rating

N/A

Excellent

Capacity

2000 mAh

1800 mAh

6600 mAh

Battery Type

Li-ion

Quick Charging

N/A

Yes 100W Flash Charging

Wireless Charging

N/A

Yes 40W Wireless Charging

Battery Test Results

Battery Life (PC Mark) (The higher, the better) PCMark Battery benchmark measures battery life of a phone with various activities such as web browsing, photo editing, writing, video editing, etc.

N/A

15h 10m

Charging Time (20% to 100%) (The lower, the better)

N/A

0h 36m 0s

Storage

Internal Storage

4 GB

N/A

512 GB

Storage Type

N/A

UFS 4.1

Expandable Storage

Yes Up to 32 GB

Yes Up to 8 GB

N/A

Network & Connectivity

SIM Slot(s)

Dual SIM

SIM Type

N/A

SIM1: Nano SIM2: Nano

Network Support

5G Not Supported

5G 4G

VoLTE

N/A

Yes

SIM 1

N/A

5G Bands:

FDD N1 / N2 / N3 / N5 / N7 / N8 / N12 / N18 / N20 / N25 / N26 / N28 / N66
TDD N38 / N40 / N41 / N48 / N77 / N78 / N79 / N80 / N81 / N83 / N84 / N89

N/A

4G Bands:

TD-LTE 3500(band 48) / 2600(band 38) / 2300(band 40) / 2500(band 41) / 2100(band 34) / 1900(band 39) / 3500(band 42) / 3700(band 43)
FD-LTE 1700(band 66) / 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 17) / 850(band 18) / 850(band 19) / 800(band 20) / 1900(band 25) / 850(band 26)

SIM 2

N/A

5G Bands:

FDD N1 / N2 / N3 / N5 / N7 / N8 / N12 / N18 / N20 / N25 / N26 / N28 / N66
TDD N38 / N40 / N41 / N48 / N77 / N78 / N79 / N80 / N81 / N83 / N84 / N89

N/A

4G Bands:

TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41) / 2100(band 34) / 1900(band 39) / 3500(band 42) / 3700(band 43) / 3500(band 48)
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 12) / 700(band 17) / 850(band 18) / 850(band 19) / 800(band 20) / 1900(band 25) / 850(band 26) / 1700(band 66)

Wi-Fi

Yes Wi-Fi 4 (802.11 b/g/n)

N/A

Yes Wi-Fi 7 (802.11 be/ax) MIMO

Wi-Fi Features

Mobile Hotspot

N/A

Wi-Fi Direct Mobile Hotspot

Bluetooth

Yes

Yes v6.0

GPS

N/A

Yes with A-GPS Glonass

NFC

N/A

Yes

IR Blaster

N/A

Yes

Multimedia

Audio Jack

3.5 mm

USB Type-C

Video Player

N/A

Yes Video Formats: MPEG4

N/A

Ring Tone

N/A

Music ringtones Polyphonic ringtones Vibration

N/A

Music

N/A

Yes Music Formats: MP3

N/A

Special Features

N/A

Multi Languages

N/A

Sensors

Fingerprint Sensor

N/A

Yes

Fingerprint Sensor Position

N/A

On-screen

Fingerprint Sensor Type

N/A

Ultrasonic

Other Sensors

Light sensor Proximity sensor Accelerometer

N/A

Light sensor Proximity sensor Accelerometer Compass Gyroscope

Games

N/A

Yes

N/A

Phone Book

N/A

Yes Limited

N/A

Other Facilities

N/A

Calculator World clock Calendar Alarm

N/A

Compare Prices

Not Available in any store

₹159,999

@ Amazon