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Realme X3 vs Redmi K20

Key Feature Comparison

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At a Glance

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Octa core (2.96 GHz, Single core, Kryo 485 + 2.42 GHz, Tri core, Kryo 485 + 1.8 GHz, Quad core, Kryo 485)

Qualcomm Snapdragon 855 Plus, Adreno 640

Octa core (2.2 GHz, Dual core, Kryo 470 + 1.8 GHz, Hexa Core, Kryo 470)

Qualcomm Snapdragon 730, Adreno 618

4200 mAh

Li-ion, Super Dart, 30W

4000 mAh

Li-Polymer, Quick, v3.0, 18W

16.76 cm (6.6 inch)

399 ppi, FHD

16.23 cm (6.4 inch)

403 ppi, FHD

Quad, 64MP + 12MP + 8MP + 2MP

3840x2160 @ 30 fps, 1920x1080 @ 60 fps

Triple, 48MP + 13MP + 8MP

3840x2160 @ 30 fps, 1920x1080 @ 60 fps, 1280x720 @ 120 fps

4G

Dual SIM, GSM+GSM

4G

Dual SIM, GSM+GSM, Dual VoLTE

Detailed Specs

Screen Size

16.76 cm (6.6 inch)
16.23 cm (6.4 inch)

Screen Type

IPS LCD
AMOLED

Screen Resolution

1080 x 2400 pixels
1080 x 2340 pixels

Pixel Density

399 ppi
403 ppi

Aspect Ratio

20:09
19.5:9

Screen Protection

Gorilla Glass 5
Gorilla Glass 5

Screen to Body Ratio

90.50%
91.90%

Screen Design

Punch hole
Bezel-less

Screen Refresh Rate

120 Hz
-

Screen Quality

FHD
FHD

Peak Brightness

480 nits
-

Phone Variants

8GB 128GB, 6GB 128GB
6GB 128GB, 6GB 64GB

Expandable Storage

No
No

RAM Type

LPDDR4X
LPDDR4X

Storage Type

UFS 3.0
UFS 2.1

OTG Support

Yes
Yes

Sensors

Light sensor, Proximity sensor, Accelerometer, Gyroscope
Light sensor, Proximity sensor, Accelerometer, Compass, Gyroscope

Operating System

Android v10 (Q)
Android v9.0 (Pie)

GPU

Adreno 640
Adreno 618

Chipset

Qualcomm Snapdragon 855 Plus
Qualcomm Snapdragon 730

CPU

Octa core (2.96 GHz, Single core, Kryo 485 + 2.42 GHz, Tri core, Kryo 485 + 1.8 GHz, Quad core, Kryo 485)
Octa core (2.2 GHz, Dual core, Kryo 470 + 1.8 GHz, Hexa Core, Kryo 470)

Custom User Interface

Realme UI
MIUI

Clock Speed

2.96 GHz
2.2 GHz

Architecture

64 bit
64 bit

Process Technology

7 nm
8 nm

Battery Capacity

4200 mAh
4000 mAh

Battery Removable

No
No

Battery Type

Li-ion
Li-Polymer

Charger Type

Super Dart, 30W
Quick, v3.0, 18W

USB Type-C

Yes
Yes

Fast Charging

Yes
Yes

Charging Time

100 % in 55 minutes
-

Announced On

25-Jun-20
5-May-19

Market Status

Available
Available

Brand

Realme
Xiaomi

Price Status

Confirmed
Confirmed

Price

Rs. 24,999
Rs. 19,450

Model Number

-
MZB7756IN

GPS

Yes A-GPS, Glonass
Yes A-GPS, Glonass

Audio Features

Dolby Atmos
24-bit/192kHz audioActive noise cancellation with dedicated mic

NFC

No
Yes

Network Support

4G
4G

Bluetooth

Yes
Yes

FM Radio

No
-

3.5mm Audio Jack

No
Yes

SIM Size

SIM1: Nano, SIM2: Nano
SIM1: Nano, SIM2: Nano

Wi-Fi

Yes, Wi-Fi 802.11, ac/b/g/n/n 5GHz, MIMO
Yes, Wi-Fi 802.11, ac/b/g/n, MIMO

Bluetooth Type

v5.0
v5.0

Audio Jack

USB Type-C
3.5 mm

SIM Slot(s)

Dual SIM, GSM+GSM
Dual SIM, GSM+GSM, Dual VoLTE

eSIM

No
No

Wi-Fi Features

Mobile Hotspot
Wi-Fi Direct, Mobile Hotspot

VoLTE

Yes
Yes

SIM 1 Bands

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...
4G Bands: TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41), FD-LTE 2100(band 1) / 1800(band 3) / 2600(band 7) / 900(band 8) / 850(band 5), 3G Bands: UMTS 1900 / 2100 / 850 / 900 MHz, 2G Bands: GSM 1800 / 1900 / 850 / 900 MHz, GPRS: Available, EDG...

SIM 2 Bands

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...
4G Bands: TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41), FD-LTE 2100(band 1) / 1800(band 3) / 2600(band 7) / 900(band 8) / 850(band 5), 3G Bands: UMTS 1900 / 2100 / 850 / 900 MHz, 2G Bands: GSM 1800 / 1900 / 850 / 900 MHz, GPRS: Available, EDG...

Front Video Recording

1920x1080 @ 30 fps, 1280x720 @ 30 fps
1920x1080 @ 30 fps, 1280x720 @ 30 fps

Front Camera Features

Panorama
HDR

Front Camera Setup

Dual, 16MP + 8MP
Single, 20MP

Front Camera 1 Resolution

16 MP
20 MP

Front Camera 1 Type

f/2.1, Wide Angle (105 degree field-of-view) Primary Camera
f/2.2 Primary Camera

Front Camera 1 Lens

3" sensor size, 1 micrometre pixel size
0.8 micrometre pixel size

Front Camera 2 Resolution

8 MP
-

Front Camera 2 Type

f/2.2, Wide Angle, Ultra-Wide Angle (105 degree field-of-view) Camera
-

Front Camera 2 Lens

4.0" sensor size, 1.12 micrometre pixel size
-

Front Sensor

Exmor RS
-

Front Aperture

f/2.1
f/2.2

Weight

202 grams
191 grams

Colors

Glacier Blue, Arctic White
Carbon Black, Flame Red, Glacier Blue, Pearl White

Build

Back: Mineral Glass
Back: Gorilla Glass

Dimensions

163.8 x 75.8 x 8.9 mm
156.7 x 74.3 x 8.8 mm

SAR Value

Head: 1.188 W/kg, Body: 0.906 W/kg
Head: 1.07 W/kg, Body: 0.723 W/kg

Rear Flash

Yes, LED Flash
Yes, Dual LED Flash

Rear Video Recording

3840x2160 @ 30 fps, 1920x1080 @ 60 fps
3840x2160 @ 30 fps, 1920x1080 @ 60 fps, 1280x720 @ 120 fps

Rear Camera Features

Digital Zoom, Auto Flash, Face detection, Touch to focus
Auto Flash, Face detection, Touch to focus

Rear Camera Setup

Quad, 64MP + 12MP + 8MP + 2MP
Triple, 48MP + 13MP + 8MP

Rear Camera 1 Resolution

64 MP
48 MP

Rear Camera 1 Type

f/1.8, Wide Angle (78 degree field-of-view) Primary Camera
f/1.75 Primary Camera

Rear Camera 1 Lens

26 mm focal length, 1.7" sensor size, 0.8 micrometre pixel size
2" sensor size, 0.8 micrometre pixel size

Rear Camera 2 Resolution

12 MP
13 MP

Rear Camera 2 Type

f/2.5 Telephoto (upto 2x Optical Zoom) Camera
f/2.4, Wide Angle, Ultra-Wide Angle Camera

Rear Camera 2 Lens

51 mm focal length, 3.4" sensor size, 1 micrometre pixel size
3" sensor size, 1.12 micrometre pixel size

Rear Camera 3 Resolution

8 MP
8 MP

Rear Camera 3 Type

f/2.3, Wide Angle, Ultra-Wide Angle Camera
f/2.4 Telephoto (upto 10x Digital Zoom, upto 2x Optical Zoom) Camera

Rear Camera 3 Lens

16 mm focal length, 4.0" sensor size, 1.12 micrometre pixel size
4.0" sensor size, 1.12 micrometre pixel size

Rear Camera 4 Resolution

2 MP
-

Rear Camera 4 Type

f/2.4, Macro Camera
-

Rear Camera 4 Lens

21.8 mm focal length, 5.0" sensor size, 1.75 micrometre pixel size
-

Rear Sensor

ISOCELL Plus
Exmor-RS CMOS Sensor

Rear Aperture

f/1.8
f/1.75

Fingerprint Scanner

Yes
Yes

Fingerprint Scanner Position

Side
On-Screen

Face Unlock

Yes
Yes

Fingerprint Scanner Type

-
Optical
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