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Xiaomi Redmi 9 Power vs Karbonn X21

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Summary
76%
Performance

Snapdragon 662

4 GB RAM

Unisoc SC9863

2 GB RAM

Display

6.53" (16.59 cm)

1080x2340 px (FHD+)

5.45" (13.84 cm)

720x1440 px (HD+)

Rear Camera

48 MP + 8 MP + 2 MP + 2 MP

Quad Camera

8 MP

Single Camera

Front Camera

8 MP

Single Camera

5 MP

Single Camera

Battery

6000 mAh

45 h talktime (4G)

3000 mAh

Storage

64 GB

512 GB (Expandable)

32 GB

256 GB (Expandable)

Expert Rating

3.5/5

Read Expert Review

User Rating

★★★★★
★★★★★

4.3/5 based on 361,927 ratings

Read All User Reviews

Benchmarks

N/A

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General
Launch Date

December 22, 2020 (Official)

June 15, 2021 (Official)

Operating System

Android v10 (Q)

Android v10

Custom UI

MIUI

Android Go

Performance
Good
Chipset

Qualcomm Snapdragon 662

Unisoc SC9863

CPU

Octa core (2 GHz, Quad core, Kryo 260 + 1.8 GHz, Quad core, Kryo 260)

Octa core, 1.6 GHz, Cortex A55

Architecture

64 bit

64 bit

Graphics

Adreno 610

PowerVR GE8322

RAM

4 GB

2 GB

RAM Type

LPDDR4X

Display
Good
Display Type

IPS LCD

IPS LCD

Screen Size

6.53 " (16.59 cm)

5.45 " (13.84 cm)

Resolution

1080x2340 px (FHD+)

720x1440 px (HD+)

Aspect Ratio

19.5:9

18:9

Pixel Density

395 ppi

295 ppi

Screen to Body Ratio (calculated)

83.25 %

72.38 %

Screen Protection

Corning Gorilla Glass v3

Bezel-less display

with waterdrop notch

Touch Screen

, Capacitive Touchscreen, Multi-touch

, Capacitive Touchscreen, Multi-touch

Brightness

400 nits

Screen to Body Ratio (claimed by the brand)

90.34 %

Design
Size Compare
Size Compare
Dimensions

Height: 162.3 mm
Width: 77.3 mm
Thickness: 9.6 mm

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

Weight

198 grams

160 grams

Build Material

Back: Plastic

Colours

Mighty Black, Fiery Red, Electric Green, Blazing Blue

Midnight Blue, Aqua Green

Waterproof

, Splash proof

Camera
Main Camera
Camera Setup

Quad

Single

Resolution

48 MP f/1.79, Wide Angle, Primary Camera(26 mm focal length, 2" sensor size, 0.8µm pixel size)8 MP f/2.2, Ultra-Wide Angle Camera(4.0" sensor size, 1.12µm pixel size)2 MP f/2.4, Macro Camera
2 MP f/2.4, Depth Camera

8 MP, Primary Camera

Sensor

S5KGM1, ISOCELL Plus

Autofocus

OIS

No

Flash

, LED Flash

, LED Flash

Image Resolution

8000 x 6000 Pixels

3264 x 2448 Pixels

Settings

Exposure compensation, ISO control

Shooting Modes

Continuous 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

Video Recording Features

Movie Frame

Front Camera
Good
Camera Setup

Single

Single

Resolution

8 MP f/2.0, Wide Angle, Primary Camera(27 mm focal length, 4.0" sensor size, 1.12µm pixel size)

5 MP, Primary Camera

Flash

, LED Flash

Video Recording

1920x1080 @ 30 fps

Battery
Very Good
Capacity

6000 mAh

3000 mAh

Type

Li-Polymer

Li-ion

Removable

No

TalkTime

Up to 45 Hours(4G)

Standby time

Up to 695 Hours(2G)

Quick Charging

, Fast, 18W

USB Type-C

No

Storage
Best in Class
Internal Memory

64 GB

32 GB

Expandable Memory

, Up to 512 GB

, Up to 256 GB

User Available Storage

Up to 47 GB

Storage Type

UFS 2.1

Network & Connectivity
SIM Slot(s)

Dual SIM, GSM+GSM, Dual VoLTE

Dual SIM, GSM+GSM

SIM Size

SIM1: Nano
SIM2: Nano

SIM1: Nano
SIM2: Nano

Network Support

5G Not Supported in India, 4G Supported in India, 3G, 2G

5G Not Supported in India, 4G Supported in India, 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: 0.868 W/kg, Body: 0.865 W/kg

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

Wi-Fi

, Wi-Fi 5 (802.11 b/g/n/ac) 5GHz

, Wi-Fi 4 (802.11 a/b/g/n)

Wi-Fi Features

Wi-Fi Direct, 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

Mass storage device, USB charging, microUSB 2.0

Multimedia
FM Radio

Loudspeaker

Audio Jack

3.5 mm

3.5 mm

Sensors
Fingerprint Sensor

No

Fingerprint Sensor Position

Side

Other Sensors

Light sensor, Proximity sensor, Accelerometer, Compass

Light sensor, Proximity sensor, Accelerometer

Price list

Rs. 11,999
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