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Realme 9 vs Oppo K1

Key Feature Comparison

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At a Glance

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Octa core (2.4 GHz, Quad core, Kryo 265 + 1.9 GHz, Quad core, Kryo 265)

Qualcomm Snapdragon 680, Adreno 610

Octa core (1.95 GHz, Quad core, Kryo 260 + 1.8 GHz, Quad core, Kryo 260)

Qualcomm Snapdragon 660 MSM8956, Adreno 512

5000 mAh

Li-ion, Dart, 33W

3600 mAh

Li-ion

6.4 inches

411 ppi, FHD

6.4 inches

403 ppi, FHD

Triple, 108MP + 8MP + 2MP

1920x1080 @ 30 fps, 1280x720 @ 30 fps

Dual, 16MP + 2MP

3840x2160 @ 30 fps

4G

Dual SIM, GSM+GSM

4G

Dual SIM, GSM+GSM, Dual VoLTE

Detailed Specs

Screen Size

6.4 inches
6.4 inches

Screen Type

Super AMOLED
AMOLED

Screen Resolution

1080 x 2400 pixels
1080 x 2340 pixels

Pixel Density

411 ppi
403 ppi

Aspect Ratio

20:09
19.5:9

Screen Protection

Gorilla Glass 5
Gorilla Glass 5

Screen to Body Ratio

90.80%
91%

Screen Design

Punch hole
Waterdrop notch

Screen Refresh Rate

90 Hz
-

Screen Quality

FHD
FHD

Peak Brightness

1000 nits
-

Phone Variants

6GB 128GB, 8GB 128GB
6GB 64GB, 4GB 64GB

Expandable Storage

Yes
Yes

RAM Type

LPDDR4X
LPDDR4X

Storage Type

UFS 2.1
eMMC 5.1

Expandable Storage Capacity

Yes, 256 GB
Yes, 256 GB

OTG Support

Yes
Yes

Sensors

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

Operating System

Android v12
Android v9.0 (Pie)

GPU

Adreno 610
Adreno 512

Chipset

Qualcomm Snapdragon 680
Qualcomm Snapdragon 660 MSM8956

CPU

Octa core (2.4 GHz, Quad core, Kryo 265 + 1.9 GHz, Quad core, Kryo 265)
Octa core (1.95 GHz, Quad core, Kryo 260 + 1.8 GHz, Quad core, Kryo 260)

Custom User Interface

Realme UI
ColorOS

Clock Speed

2.4 GHz
1.95 GHz

Architecture

64 bit
64 bit

Process Technology

6 nm
14 nm

Battery Capacity

5000 mAh
3600 mAh

Battery Removable

No
No

Battery Type

Li-ion
Li-ion

Charger Type

Dart, 33W
-

USB Type-C

Yes
No

Fast Charging

Yes
-

Charging Time

50 % in 31 minutes
-

Announced On

7-Apr-22
5-Oct-18

Market Status

Available
Available

Brand

Realme
OPPO

Model Number

RMX3521
CPH1893

Price Status

Confirmed
Confirmed

Price

Rs. 17,999
Rs. 14,990

GPS

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

Audio Features

Dirac Effect, Audio Decoder Chip WCD9370, Hi-Res
Active noise cancellation with dedicated mic

NFC

No
-

Network Support

4G
4G

Bluetooth

Yes
Yes

3.5mm Audio Jack

Yes
Yes

SIM Size

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

Wi-Fi

Yes, Wi-Fi 802.11, ac/b/g/n
Yes, Wi-Fi 802.11, b/g/n

Bluetooth Type

v5.1
v5.0

Audio Jack

3.5 mm
3.5 mm

SIM Slot(s)

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

eSIM

No
No

Wi-Fi Features

Mobile Hotspot
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) / 1900(band 39), 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) / 850(band 18) / 850(band 19) / 800(band 20) / ...

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) / 1900(band 39), 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) / 850(band 19) / 800(band 20) / 850(band 26), 3...

Front Video Recording

1920x1080 @ 30 fps
1920x1080 @ 30 fps

Front Camera Features

Fixed Focus
HDR

Front Camera Setup

Single, 16MP
Single, 25MP

Front Camera 1 Resolution

16 MP
25 MP

Front Camera 1 Type

f/2.45, Wide Angle, Primary Camera
f/2.0 Primary Camera

Front Camera 1 Lens

26 mm focal length, 3" sensor size, 1 micrometre pixel size
0.9 micrometre pixel size

Front Sensor

Exmor RS
CMOS

Front Aperture

f/2.45
f/2.0

Front Flash

-
Yes, Screen flash

Weight

178 grams
156 grams

Colors

Sunburst Gold, Stargaze White, Meteor Black
Astral Blue, Piano Black

Dimensions

160.2 x 73.3 x 7.9 mm
158.3 x 75.5 x 7.4 mm

SAR Value

Head: 1.162 W/kg, Body: 0.593 W/kg
Head: 0.278 W/kg, Body: 0.861 W/kg

Build

-
Back: Plastic

Rear Flash

Yes, LED Flash
Yes, LED Flash

Rear Video Recording

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

Rear Camera Features

10 x Digital Zoom, Auto Flash, Face detection, Touch to focus
2 x Digital Zoom, Auto Flash, Face detection, Touch to focus

Rear Camera Setup

Triple, 108MP + 8MP + 2MP
Dual, 16MP + 2MP

Rear Camera 1 Resolution

108 MP
16 MP

Rear Camera 1 Type

f/1.75, Wide Angle (83 degree field-of-view), Primary Camera
f/1.75 (upto 2x Digital Zoom) Primary Camera

Rear Camera 1 Lens

23.6 mm focal length, 1.67" sensor size, 0.64 micrometre pixel size
2.8" sensor size, 1.12 micrometre pixel size

Rear Camera 2 Resolution

8 MP
2 MP

Rear Camera 2 Type

f/2.2, Wide Angle Camera
f/2.4, Depth Camera

Rear Camera 2 Lens

15.7 mm focal length, 4.0" sensor size, 1.12 micrometre pixel size
-

Rear Camera 3 Resolution

2 MP
-

Rear Camera 3 Type

f/2.4, Macro Camera
-

Rear Camera 3 Lens

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

Rear Sensor

ISO-CELL
CMOS image sensor

Rear Aperture

f/1.75
f/1.75

Fingerprint Scanner

Yes
Yes

Fingerprint Scanner Position

On-Screen
On-Screen

Fingerprint Scanner Type

Optical
Optical

Face Unlock

Yes
Yes

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