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Realme C21Y vs HTC One M9 Plus vs OnePlus 9 Pro 5G

Key Feature Comparison

6.3

Realme C21Y

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5.7

HTC One M9 Plus

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8.4

OnePlus 9 Pro 5G

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At a Glance

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Octa core (1.8 GHz, Dual core, Cortex A75 + 1.8 GHz, Hexa Core, Cortex A55)

Unisoc T610, Mali-G52

Octa core, 2.2 GHz, Cortex A53

MediaTek MT6795, PowerVR G6200

Octa core (2.84 GHz, Single core, Kryo 680 + 2.42 GHz, Tri core, Kryo 680 + 1.8 GHz, Quad core, Kryo 680)

Qualcomm Snapdragon 888, Adreno 660

5000 mAh

Li-ion, Normal, 10W

2840 mAh

Li-Polymer

4500 mAh

Li-ion, Warp, 65W

16.51 cm (6.5 inch)

270 ppi, HD

13.21 cm (5.2 inch)

565 ppi, 2K

17.02 cm (6.7 inch)

526 ppi, 2K

Triple, 13MP + 2MP + 2MP

1920x1080 @ 30 fps

Dual, 20MP + 2.1MP

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

Quad, 48MP + 50MP + 8MP + 2MP

7680x4320 @ 30 fps, 3840x2160 @ 60 fps, 1920x1080 @ 240 fps, 1280x720 @ 480 fps

4G

Dual SIM, GSM+GSM

4G

Single SIM, GSM

5G

Dual SIM, GSM+GSM

Detailed Specs

Screen Size

16.51 cm (6.5 inch)
13.21 cm (5.2 inch)
17.02 cm (6.7 inch)

Screen Type

IPS LCD
IPS LCD
AMOLED

Screen Resolution

720 x 1600 pixels
1440 x 2560 pixels
1440 x 3216 pixels

Pixel Density

270 ppi
565 ppi
526 ppi

Aspect Ratio

20:09
-
20:09

Screen to Body Ratio

88.70%
68.55%
90.23%

Screen Design

Waterdrop notch
-
Punch hole

Screen Refresh Rate

60 Hz
-
120 Hz

Screen Quality

HD
2K
2K

Peak Brightness

420 nits
-
1300 nits

Phone Variants

4GB 64GB, 3GB 32GB
3GB 32GB
12GB 256GB, 8GB 128GB

Expandable Storage

Yes
Yes
No

RAM Type

LPDDR4X
-
LPDDR5

Storage Type

eMMC 5.1
-
UFS 3.1

Expandable Storage Capacity

Yes, 256 GB
Yes, 2 TB
-

OTG Support

Yes
-
-

Sensors

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

Operating System

Android v11
Android v5.0.2 (Lollipop)
Android v11

GPU

Mali-G52
PowerVR G6200
Adreno 660

Chipset

Unisoc T610
MediaTek MT6795
Qualcomm Snapdragon 888

CPU

Octa core (1.8 GHz, Dual core, Cortex A75 + 1.8 GHz, Hexa Core, Cortex A55)
Octa core, 2.2 GHz, Cortex A53
Octa core (2.84 GHz, Single core, Kryo 680 + 2.42 GHz, Tri core, Kryo 680 + 1.8 GHz, Quad core, Kryo 680)

Custom User Interface

Realme UI
HTC Sense
Oxygen OS

Clock Speed

1.8 GHz
2.2 GHz
2.84 GHz

Architecture

64 bit
64 bit
64 bit

Process Technology

12 nm
-
5 nm

Battery Capacity

5000 mAh
2840 mAh
4500 mAh

Battery Removable

No
No
No

Battery Type

Li-ion
Li-Polymer
Li-ion

Charger Type

Normal, 10W
-
Warp, 65W

USB Type-C

No
No
Yes

Announced On

23-Aug-21
5-Apr-15
23-Mar-21

Market Status

Available
Out of Stock
Available

Brand

Realme
HTC
OnePlus

Model Number

RMX3261
-
LE2121

Price Status

Confirmed
Confirmed
Confirmed

Price

Rs. 8,999
Rs. 23,990
Rs. 64,999

GPS

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

NFC

No
Yes
Yes

Network Support

4G
4G
5G

Bluetooth

Yes
Yes
Yes

3.5mm Audio Jack

Yes
Yes
No

SIM Size

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

Wi-Fi

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

Bluetooth Type

v5.0
v4.1
v5.2

Audio Jack

3.5 mm
3.5 mm
USB Type-C

SIM Slot(s)

Dual SIM, GSM+GSM
Single SIM, GSM
Dual SIM, GSM+GSM

eSIM

No
No
No

Wi-Fi Features

Mobile Hotspot
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) / 850(band 5), 3G Bands: UMTS 1900 / 2100 / 850 / 900 MHz, 2G Bands: GSM 1800 / 1900 / 850 ...
5G Bands: FDD N1 / N3 / N5 / N7 / N8 / N20 / N28, TDD N38 / N40 / N41 / N77 / N78, 4G Bands: TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41) / 3500(band 42), FD-LTE 2100(band 1) / 1800(band 3) / 2600(band 7) / 900(band 8) / 700(band 28) / 1900(b...

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...
-
5G Bands: FDD N1 / N3 / N5 / N7 / N8 / N20 / N28, TDD N38 / N40 / N41 / N77 / N78, 4G Bands: TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41) / 3500(band 42), FD-LTE 2100(band 1) / 1800(band 3) / 2600(band 7) / 900(band 8) / 700(band 28) / 1900(b...

Audio Features

-
Dolby Surround audio enhancementActive noise cancellation with dedicated mic
Dolby Atmos

FM Radio

-
Yes, RDS, Stereo FM
No

Front Video Recording

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

Front Camera Features

Fixed Focus
HDR
Fixed Focus

Front Camera Setup

Single, 5MP
Single, 4MP
Single, 16MP

Front Camera 1 Resolution

5 MP
4 MP
16 MP

Front Camera 1 Type

f/2.2, Wide Angle Primary Camera
f/2.0 Primary Camera
f/2.4, Wide Angle Primary Camera

Front Camera 1 Lens

5.0" sensor size, 1.12 micrometre pixel size
-
3" sensor size, 1 micrometre pixel size

Front Sensor

CMOS
BSI Sensor
Exmor RS

Front Aperture

f/2.2
f/2.0
f/2.4

Front Flash

-
No
Yes, Screen flash

Weight

200 grams
168 grams
197 grams

Colors

Cross Blue, Cross Black
Gold, Grey, Silver
Morning Mist, Pine Green, Stellar Black

Build

Plastic back, plastic frame
-
Back: Gorilla Glass

Dimensions

164.5 x 76 x 9.1 mm
150.9 x 71.9 x 9.6 mm
163.2 x 73.6 x 8.7 mm

SAR Value

Head: 0.855 W/kg, Body: 0.674 W/kg
-
-

Rear Flash

Yes, LED Flash
Yes, Dual-color LED Flash
Yes, Dual LED Flash

Rear Video Recording

1920x1080 @ 30 fps
3840x2160 @ 30 fps, 1920x1080 @ 60 fps, 1280x720 @ 120 fps
7680x4320 @ 30 fps, 3840x2160 @ 60 fps, 1920x1080 @ 240 fps, 1280x720 @ 480 fps

Rear Camera Features

4 x Digital Zoom, Auto Flash, Face detection, Touch to focus
Digital Zoom, Auto Flash, Digital image stabilization, Face detection, Simultaneous HD video and image recording, Smile detection, Touch to focus
Digital Zoom, Auto Flash, Face detection, Touch to focus

Rear Camera Setup

Triple, 13MP + 2MP + 2MP
Dual, 20MP + 2.1MP
Quad, 48MP + 50MP + 8MP + 2MP

Rear Camera 1 Resolution

13 MP
20 MP
48 MP

Rear Camera 1 Type

f/2.2 (upto 4x Digital Zoom), Wide Angle (80 degree field-of-view) Primary Camera
f/2.2 Primary Camera
f/1.8, Wide Angle Primary Camera

Rear Camera 1 Lens

25.5 mm focal length, 3" sensor size, 1.12 micrometre pixel size
27.8 mm focal length
23 mm focal length, 1.4" sensor size, 1.12 micrometre pixel size

Rear Camera 2 Resolution

2 MP
2.1 MP
50 MP

Rear Camera 2 Type

f/2.4, Macro Camera
-
f/2.2, Wide Angle, Ultra-Wide Angle Camera

Rear Camera 2 Lens

21.8 mm focal length, 5.0" sensor size, 1.75 micrometre pixel size
-
14 mm focal length, 1.56" sensor size, 1 micrometre pixel size

Rear Camera 3 Resolution

2 MP
-
8 MP

Rear Camera 3 Type

f/2.4 Camera
-
f/2.4 Telephoto (upto 30x Digital Zoom) Camera

Rear Camera 3 Lens

21.8 mm focal length, 5.0" sensor size, 1.75 micrometre pixel size
-
77 mm focal length, 1 micrometre pixel size

Rear Sensor

CMOS image sensor
Back-illuminated sensor (BSI)
Exmor-RS CMOS Sensor

Rear Aperture

f/2.2
f/2.2
f/1.8

OIS

-
No
Yes

Fingerprint Scanner

Yes
Yes
Yes

Fingerprint Scanner Position

Rear
-
On-Screen

Face Unlock

Yes
-
Yes
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