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Xiaomi Redmi 9A vs Karbonn X21

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Summary
66%
Performance

MediaTek Helio G25

2 GB RAM

Unisoc SC9863

2 GB RAM

Display

6.53" (16.59 cm)

720x1600 px, 269 PPI

5.45" (13.84 cm)

720x1440 px, 295 PPI

Rear Camera

13 MP

Single Camera

8 MP

Single Camera

Front Camera

5 MP

Single Camera

5 MP

Single Camera

Battery

5000 mAh

3000 mAh

Storage

32 GB

512 GB (Expandable)

32 GB

256 GB (Expandable)

User Rating

★★★★★
★★★★★

4.2/5 based on 185,332 ratings

Read All User Reviews

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General
Launch Date

September 4, 2020 (Official)

June 15, 2021 (Official)

Operating System

Android v10 (Q)

Android v10

Custom UI

MIUI

Android Go

Performance
Average
Chipset

MediaTek Helio G25

Unisoc SC9863

CPU

Octa core (2 GHz, Quad core, Cortex A53 + 1.5 GHz, Quad core, Cortex A53)

Octa core, 1.6 GHz, Cortex A55

Architecture

64 bit

64 bit

Fabrication

12 nm

Graphics

PowerVR GE8320

PowerVR GE8322

RAM

2 GB

2 GB

RAM Type

LPDDR4X

Display
Average
Display Type

IPS LCD

IPS LCD

Screen Size

6.53 " (16.59 cm)

5.45 " (13.84 cm)

Resolution

720 x 1600 pixels

720 x 1440 pixels

Aspect Ratio

20:9

18:9

Pixel Density

269 ppi

295 ppi

Screen to Body Ratio (calculated)

81.08 %

72.38 %

Bezel-less display

with waterdrop notch

Touch Screen

, Capacitive Touchscreen, Multi-touch

, Capacitive Touchscreen, Multi-touch

Brightness

400 nits

Design
Size Compare
Size Compare
Dimensions

Height: 164.9 mm
Width: 77 mm
Thickness: 9 mm

Height: 147.5 mm
Width: 71.8 mm
Thickness: 9.3 mm

Weight

194 grams

160 grams

Build Material

Back: Plastic

Colours

Midnight Black, Sea Blue, Nature Green

Midnight Blue, Aqua Green

Waterproof

, Splash proof

Camera
Main Camera
Camera Setup

Single

Single

Resolution

13 MP f/2.2, Wide Angle, Primary Camera(28 mm focal length, 1µm pixel size)

8 MP, Primary Camera

Autofocus

OIS

No

Flash

, LED Flash

, LED Flash

Image Resolution

4128 x 3096 Pixels

3264 x 2448 Pixels

Settings

Exposure compensation, ISO control

Shooting Modes

Continuos Shooting
High Dynamic Range mode (HDR)

Burst mode

Camera Features

Digital Zoom
Auto Flash
Face detection
Touch to focus

Digital Zoom

Video Recording

1920x1080 @ 30 fps

Front Camera
Average
Camera Setup

Single

Single

Resolution

5 MP f/2.2, Wide Angle, Primary Camera(1.12µm pixel size)

5 MP, Primary Camera

Flash

, LED Flash

Video Recording

1920x1080 @ 30 fps

Battery
Very Good
Capacity

5000 mAh

3000 mAh

Type

Li-Polymer

Li-ion

Removable

No

USB Type-C

No

No

Storage
Best in Class
Internal Memory

32 GB

32 GB

Expandable Memory

, Up to 512 GB

, Up to 256 GB

Storage Type

eMMC 5.1

USB OTG

Network & Connectivity
SIM Slot(s)

Dual SIM, GSM+GSM

Dual SIM, GSM+GSM

SIM Size

SIM1: Nano
SIM2: Nano

SIM1: Nano
SIM2: Nano

Network Support

4G (supports Indian bands), 3G, 2G

4G (supports Indian bands), 3G, 2G

VoLTE

SIM 1

4G Bands:
TD-LTE 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
Read More..

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

4G Bands:
TD-LTE 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
Read More..

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

SAR Value

Head: 0.528 W/kg, Body: 0.791 W/kg

Head: 0.807 W/kg, Body: 1.152 W/kg

Wi-Fi

, Wi-Fi 802.11, a/b/g/n

, Wi-Fi 802.11, a/b/g/n

Wi-Fi Features

Mobile Hotspot

Mobile Hotspot

Wi-Fi Calling

Bluetooth

, v5.0

, v4.2

GPS

with A-GPS, Glonass

with A-GPS

NFC

No

No

USB Connectivity

Mass storage device, USB charging, microUSB 2.0

Mass storage device, USB charging, microUSB 2.0

Multimedia
Loudspeaker

Audio Jack

3.5 mm

3.5 mm

Sensors
Fingerprint Sensor

No

No

Other Sensors

Light sensor, Proximity sensor, Accelerometer, Compass

Light sensor, Proximity sensor, Accelerometer

Price list

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Rs. 7,224
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Rs. 6,990
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