Xiaomi Redmi Note 9 Pro 128GB vs Samsung Galaxy M21 128GB

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Comparing the Xiaomi Redmi Note 9 Pro 128GB vs Samsung Galaxy M21 128GB across performance, display, camera, battery, storage, expert reviews and user rating to help determine the better smartphone.

Here is the summary of the results:

Performance: Xiaomi Redmi Note 9 Pro 128GB scores higher on the Geekbench Multi-Core test with 1,754, while Samsung Galaxy M21 128GB scores 1,100, making Xiaomi Redmi Note 9 Pro 128GB the better performer.


Display: Xiaomi Redmi Note 9 Pro 128GB offers a screen size of 6.67 inches, while Samsung Galaxy M21 128GB offers 6.4 inches, making Xiaomi Redmi Note 9 Pro 128GB the larger display of the two. Samsung Galaxy M21 128GB features a Super AMOLED display compared to Xiaomi Redmi Note 9 Pro 128GB's IPS LCD, making Samsung Galaxy M21 128GB the better display of the two.


Rear Camera: Both Xiaomi Redmi Note 9 Pro 128GB and Samsung Galaxy M21 128GB feature a 48 MP primary rear camera.


Front Camera: Samsung Galaxy M21 128GB offers a higher front camera resolution with 20 MP, while Xiaomi Redmi Note 9 Pro 128GB offers 16 MP, making Samsung Galaxy M21 128GB better for front camera photography.


Battery: Samsung Galaxy M21 128GB offers a higher battery capacity with 6000 mAh, while Xiaomi Redmi Note 9 Pro 128GB offers 5020 mAh, making Samsung Galaxy M21 128GB better for longer battery life.


Storage: Both Xiaomi Redmi Note 9 Pro 128GB and Samsung Galaxy M21 128GB offer the same internal storage of 128 GB.


Expert Review: Xiaomi Redmi Note 9 Pro 128GB receives a higher expert rating of 8 from the editorial team, while Samsung Galaxy M21 128GB is rated 7.


User Rating: Xiaomi Redmi Note 9 Pro 128GB receives a higher user rating of 4.3, while Samsung Galaxy M21 128GB has a rating of 4.2.

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Xiaomi Redmi Note 9 Pro 128GB
₹13,699
(Out of Stock)
Samsung Galaxy M21 128GB
₹16,499
(Out of Stock)
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Summary

Spec Score

77%
76%

Release Date

17 Mar, 2020
23 Mar, 2020

Performance

Snapdragon 720G
Samsung Exynos 9 Octa 9611
Octa Core (upto 2.3 GHz)
Octa Core (upto 2.3 GHz)
6 GB RAM
6 GB RAM

Display

6.67 inches (16.94 cm)
6.4 inches (16.26 cm)
IPS LCD
Super AMOLED
1080x2400 px (FHD+)
1080x2340 px (FHD+)

Rear Camera

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

Front Camera

16 MP
20 MP

Battery

5020 mAh
6000 mAh
18W Fast Charging
15W Fast Charging
No Wireless Charging
No Wireless Charging

Storage

128 GB
128 GB
UFS 2.1
UFS 2.1

Expert Review

8.0/10
7.0/10

Pros

  • Stellar design 
  • The primary camera is quite good
  • Amazing battery life
  • Vivid and colour accurate display
  • Long-lasting battery
  • Decent day-time photography

Cons

  • Gaming is weaker than Realme 6's MediaTek G90T
  • Pricing is confusing
  • Higher refresh rate would have been nice
  • Dated waterdrop notch design
  • Slow charging speed

User Ratings

4.3/5
(131,912 ratings)
4.2/5
(182,575 ratings)

Benchmarks (The higher, the better)

N/A
168,633
AnTuTu Score
N/A
10h 20m
Battery Life (PC Mark)

Compare in 360 View

Video

Videos
9 More Videos
Videos
11 More Videos

User Feedback

General

Launch Date

Mar 17, 2020
(Official)
Mar 23, 2020
(Official)

Operating System

Android v10 (Q)
Android v10 (Q)

Custom UI

MIUI
Samsung One UI

Performance

Performance Rating

Good
Good

Chipset

Qualcomm Snapdragon 720G
Samsung Exynos 9 Octa 9611

Processor

Octa core

2.3 GHz, Dual core, Kryo 465 1.8 GHz, Hexa Core, Kryo 465
Octa core

2.3 GHz, Quad core, Cortex A73 1.7 GHz, Quad core, Cortex A53

Architecture (The higher, the better)

64 bit
64 bit

Fabrication (The lower, the better)

8 nm
10 nm

Graphics (GPU)

Adreno 618
Mali-G72 MP3

RAM

4 GB / 6 GB
4 GB / 6 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.

N/A
168,633

Bootup Time (The lower, the better)

26.0 s
23.0 s

Gaming Test Results

Battery Drain* (The lower, the better)

2.0 %
3.0 %

Heating* (The lower, the better)

15.8 %
11.3 %
* after 30 mins of gaming

Display

Display Rating

Excellent
Excellent

Display Type

IPS LCD
Super AMOLED

Screen Size

6.67 inches  (16.94 cm)
6.4 inches  (16.26 cm)

Resolution

1080x2400 px (FHD+)
1080x2340 px (FHD+)

Brightness

450 nits
420 nits

Aspect Ratio

20:9
19.5:9

Pixel Density

395 ppi
403 ppi

Screen to Body Ratio (calculated)

84.62 %
84.02 %

Screen Protection

Corning Gorilla Glass v5
Corning Gorilla Glass v3

Bezel-less Display

Yes with punch-hole display
Yes with waterdrop notch

Screen to Body Ratio (claimed by the brand)

N/A
91 %

Design

Height

165.7 mm
159 mm

Width

76.6 mm
75.1 mm

Thickness

8.8 mm
8.9 mm

Weight

209 grams
188 grams

Build Material

Back: Gorilla Glass
Back: Plastic

Water Resistance

Yes Splash proof
N/A

Rear Camera

Rear Camera Rating

Very Good
Very Good

Resolution

48 MP
Primary Camera10x Digital Zoomf/1.791/2.25" sensor size S5KGM2 CMOS image sensor ISOCELL Plus 1.6µm pixel size
48 MP
Primary Camera4x Digital Zoomf/2.026 mm focal length 1/2" sensor size CMOS image sensor 0.8µm pixel size
8 MP
f/2.2 Ultra-Wide Angle Camera1.12µm pixel size
8 MP
f/2.2 Ultra-Wide Angle Camera12 mm focal length 1/4.0" sensor size 1.12µm pixel size
5 MP
f/2.4 Macro Camera1.12µm pixel size
5 MP
f/2.2 Depth Camera
2 MP
f/2.4 Depth Camera1.75µm pixel size
N/A

Autofocus

Yes Phase Detection Autofocus
Yes Phase Detection Autofocus

OIS

N/A
No

Flash

Yes LED Flash
Yes LED Flash

Image Resolution

8000 x 6000 Pixels
8000 x 6000 Pixels

Settings

Exposure compensation ISO control
Exposure compensation ISO control

Shooting Modes

Continuous Shooting
High Dynamic Range mode (HDR)
Burst mode
Macro Mode
Continuous Shooting
High Dynamic Range mode (HDR)

Camera Features

10 x Digital Zoom
Auto Flash
Custom Watermark
Face detection
Touch to focus
4 x Digital Zoom
Auto Flash
Face detection
Touch to focus

Video Recording

4k @30 fps
Full HD @60 fps
HD @960 fps
4k @30 fps
Full HD @30 fps

Video Recording Features

Slow Motion
Macro Video
Kaleidoscope
Short Video Mode
N/A

Front Camera

Front Camera Rating

Very Good
Very Good

Resolution

16 MP
Primary Camera1µm pixel size
20 MP
f/2.2 Primary Camera26 mm focal length CMOS

Autofocus

N/A
No

Flash

N/A
No

Video Recording

Full HD @30 fps
HD @30 fps
Full HD @30 fps

Compare Camera Samples

Battery

Battery Rating

Very Good
Very Good

Capacity

5020 mAh
6000 mAh

Battery Type

Li-Polymer
Li-ion

TalkTime

Up to 29 Hours(2G)
N/A

Quick Charging

Yes 18W Fast Charging
Yes 15W Fast Charging

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.

N/A
10h 20m

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

2h 15m 7s
2h 9m 47s

Storage

Internal Storage

64 GB / 128 GB
64 GB / 128 GB

Storage Type

UFS 2.1
UFS 2.1

Expandable Storage

Yes Up to 512 GB
Yes Up to 512 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) / 2600(band 7) / 900(band 8) / 850(band 5) / 800(band 20)

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) / 2600(band 7) / 900(band 8) / 850(band 5) / 800(band 20)

SAR Value

Head: 0.898 W/kg Body: 0.483 W/kg
Head: 0.468 W/kg

Wi-Fi

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

Wi-Fi Features

Wi-Fi Direct Mobile Hotspot
Wi-Fi Direct 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

Audio Features

N/A
Dolby Atmos

Sensors

Fingerprint Sensor

Yes
Yes

Fingerprint Sensor Position

Side
Rear

Other Sensors

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