Xiaomi Redmi 9 Prime vs realme C21Y 64GB

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Comparing the Xiaomi Redmi 9 Prime vs realme C21Y 64GB across performance, display, camera, battery, storage and user rating to help determine the better smartphone.

Here is the summary of the results:

Performance: realme C21Y 64GB scores higher on the Geekbench Multi-Core test with 1,308, while Xiaomi Redmi 9 Prime scores 1,203, making realme C21Y 64GB the better performer.


Display: Xiaomi Redmi 9 Prime offers a screen size of 6.53 inches, while realme C21Y 64GB offers 6.5 inches, making Xiaomi Redmi 9 Prime the larger display of the two. Both Xiaomi Redmi 9 Prime and realme C21Y 64GB feature the same IPS LCD display.


Rear Camera: Both Xiaomi Redmi 9 Prime and realme C21Y 64GB feature a 13 MP primary rear camera.


Front Camera: Xiaomi Redmi 9 Prime offers a higher front camera resolution with 8 MP, while realme C21Y 64GB offers 5 MP, making Xiaomi Redmi 9 Prime better for front camera photography.


Battery: realme C21Y 64GB delivers longer battery life with 16h 53m, while Xiaomi Redmi 9 Prime delivers 13h 31m, making realme C21Y 64GB the better pick for all day usage.


Storage: Both Xiaomi Redmi 9 Prime and realme C21Y 64GB offer the same internal storage of 64 GB.


User Rating: realme C21Y 64GB receives a higher user rating of 4.5, while Xiaomi Redmi 9 Prime has a rating of 4.3.

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realme C21Y 64GB
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Summary

Spec Score

73%
72%

Release Date

06 Aug, 2020
30 Aug, 2021

Performance

MediaTek Helio G80
Unisoc T610
Octa Core (upto 2 GHz)
Octa Core (upto 1.8 GHz)
4 GB RAM
4 GB RAM

Display

6.53 inches (16.59 cm)
6.5 inches (16.51 cm)
IPS LCD
IPS LCD
1080x2340 px (FHD+)
720x1600 px (HD+)
60 Hz Refresh Rate
60 Hz Refresh Rate

Rear Camera

13 MP
Wide Angle Primary Camera
13 MP
Wide Angle Primary Camera
8 MP
Ultra-Wide Angle Camera
2 MP
Macro Camera
5 MP
Macro Camera
2 MP
Camera
2 MP
Depth Camera
N/A

Front Camera

8 MP
Wide Angle Lens
5 MP
Wide Angle Lens

Battery

5020 mAh
5000 mAh
18W Fast Charging
N/A
No Wireless Charging
No Wireless Charging

Storage

64 GB
64 GB
eMMC 5.1
eMMC 5.1

Expert Review

8.0/10
N/A

Pros

  • Full HD display
  • Solid battery life
  • Decent performance
  • Device yet to be reviewed

Cons

  • Average cameras
  • Lacks Night mode
  • Hefty build
  • Device yet to be reviewed

User Ratings

4.3/5
(327,746 ratings)
4.5/5
(252,291 ratings)

Benchmarks (The higher, the better)

191,437
AnTuTu Score
162,658
AnTuTu Score
13h 31m
Battery Life (PC Mark)
16h 53m
Battery Life (PC Mark)

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₹9,997
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Video

Videos
4 More Videos
Videos
1 More Video

User Feedback

General

Launch Date

Aug 06, 2020
(Official)
Aug 30, 2021
(Official)

Operating System

Android v10 (Q)
Android v11

Custom UI

MIUI
Realme UI

Performance

Performance Rating

Good
Good

Chipset

MediaTek Helio G80
Unisoc T610

Processor

Octa core

2 GHz, Dual core, Cortex A75 1.8 GHz, Hexa Core, Cortex A55
Octa core

1.8 GHz, Dual core, Cortex A75 1.8 GHz, Hexa Core, Cortex A55

Architecture (The higher, the better)

64 bit
N/A

Fabrication (The lower, the better)

12 nm
12 nm

Graphics (GPU)

Mali-G52
Mali-G52

RAM

4 GB
3 GB / 4 GB

RAM Type

LPDDR4X
LPDDR4X

Performance Test Results

AnTuTu Score (The higher, the better) AnTuTu benchmark measures overall performance of a phone by stress-testing CPU, GPU, RAM, etc.

191,437
162,658

Bootup Time (The lower, the better)

21.0 s
30.0 s

Gaming Test Results

Battery Drain* (The lower, the better)

5.0 %
2.0 %

Heating* (The lower, the better)

13.4 %
44.5 %
* after 30 mins of gaming

Display

Display Rating

Excellent
Very Good

Display Type

IPS LCD
IPS LCD

Screen Size

6.53 inches  (16.59 cm)
6.5 inches  (16.51 cm)

Resolution

1080x2340 px (FHD+)
720x1600 px (HD+)

Brightness

400 nits
420 nits

Refresh Rate

60 Hz
60 Hz

Aspect Ratio

19.5:9
20:9

Pixel Density

395 ppi
270 ppi

Screen to Body Ratio (calculated)

83.06 %
81.59 %

Screen Protection

Corning Gorilla Glass v3
N/A

Bezel-less Display

Yes with waterdrop notch
Yes with waterdrop notch

Screen to Body Ratio (claimed by the brand)

N/A
88.7 %

Design

Height

163.3 mm
164.5 mm

Width

77 mm
76 mm

Thickness

9.1 mm
9.1 mm

Weight

198 grams
200 grams

Build Material

Back: Plastic
N/A

Water Resistance

Yes Splash proof
N/A

Rear Camera

Rear Camera Rating

Good
Good

Resolution

13 MP
Primary Cameraf/2.2 Wide Angle28 mm focal length 1/3.1" sensor size 1.12µm pixel size
13 MP
Primary Camera4x Digital Zoomf/2.2 Wide Angle 80° field-of-view25.5 mm focal length 1/3" sensor size CMOS image sensor 1.12µm pixel size
8 MP
f/2.2 Ultra-Wide Angle Camera1/4.0" sensor size 1.12µm pixel size
2 MP
f/2.4 Macro Camera21.8 mm focal length 1/5.0" sensor size 1.75µm pixel size
5 MP
f/2.4 Macro Camera
2 MP
f/2.421.8 mm focal length 1/5.0" sensor size 1.75µm pixel size
2 MP
f/2.4 Depth Camera
N/A

Autofocus

Yes Phase Detection Autofocus
Yes Phase Detection Autofocus

Flash

Yes LED Flash
Yes LED Flash

Image Resolution

4128 x 3096 Pixels
4128 x 3096 Pixels

Settings

Exposure compensation ISO control
Exposure compensation ISO control

Shooting Modes

Continuous Shooting
High Dynamic Range mode (HDR)
Continuous Shooting
High Dynamic Range mode (HDR)

Camera Features

Digital Zoom
Auto Flash
Face detection
Touch to focus
4 x Digital Zoom
Auto Flash
Face detection
Touch to focus

Video Recording

Full HD @30 fps
Full HD @30 fps

Front Camera

Front Camera Rating

Very Good
Very Good

Resolution

8 MP
f/2.0 Wide Angle Primary Camera27 mm focal length 1/4.0" sensor size 1.12µm pixel size
5 MP
f/2.2 Wide Angle Primary Camera1/5.0" sensor size CMOS 1.12µm pixel size

Camera Features

N/A
Fixed Focus

Video Recording

Full HD @30 fps
HD @30 fps

Compare Camera Samples

Battery

Battery Rating

Very Good
Very Good

Capacity

5020 mAh
5000 mAh

Battery Type

Li-Polymer
Li-ion

Quick Charging

Yes 18W Fast Charging
N/A

Battery Test Results

Battery Life (PC Mark) (The higher, the better) PCMark Battery benchmark measures battery life of a phone with various activities such as web browsing, photo editing, writing, video editing, etc.

13h 31m
16h 53m

Charging Time (20% to 100%) (The lower, the better)

2h 52m 44s
2h 52m 3s

Storage

Internal Storage

64 GB / 128 GB
32 GB / 64 GB

Storage Type

eMMC 5.1
eMMC 5.1

Expandable Storage

Yes Up to 512 GB
Yes Up to 256 GB

Network & Connectivity

SIM Slot(s)

Dual SIM
Dual SIM

SIM Type

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

Network Support

5G Not Supported 4G
5G Not Supported 4G

VoLTE

Yes
Yes

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)
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)

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)
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)

SAR Value

Head: 0.854 W/kg Body: 0.417 W/kg
Head: 0.855 W/kg Body: 0.674 W/kg

Wi-Fi

Yes Wi-Fi 5 (802.11 b/g/n/ac) 5GHz
Yes Wi-Fi 4 (802.11 b/g/n)

Wi-Fi Features

Wi-Fi Direct Mobile Hotspot
Mobile Hotspot

Bluetooth

Yes v5.0
Yes v5.0

GPS

Yes with A-GPS Glonass
Yes with A-GPS Glonass

NFC

No
No

Multimedia

Audio Jack

3.5 mm
3.5 mm

Sensors

Fingerprint Sensor

Yes
Yes

Fingerprint Sensor Position

Rear
Rear

Other Sensors

Light sensor Proximity sensor Accelerometer Compass
Light sensor Proximity sensor Accelerometer

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₹9,997
Not Available in any store