Samsung Galaxy M21 vs Xiaomi Redmi Note 9 Pro vs Redmi Note 8
Key Feature Comparison
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At a Glance
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Octa core (2.3 GHz, Quad core, Cortex A73 + 1.7 GHz, Quad core, Cortex A53)
Octa core (2.3 GHz, Dual core, Kryo 465 + 1.8 GHz, Hexa Core, Kryo 465)
Octa core (2 GHz, Quad core, Kryo 260 + 1.8 GHz, Quad core, Kryo 260)
6000 mAh
5020 mAh
4000 mAh
6.4 inches
6.67 inches
6.3 inches
Triple, 48MP + 8MP + 5MP
Quad, 48MP + 8MP + 5MP + 2MP
Quad, 48MP + 8MP + 2MP + 2MP
4G
4G
4G
Detailed Specs
Screen Size
6.4 inches
6.67 inches
6.3 inches
Screen Type
Super AMOLED
IPS LCD
IPS LCD
Screen Resolution
1080 x 2340 pixels
1080 x 2400 pixels
1080 x 2340 pixels
Pixel Density
403 ppi
395 ppi
409 ppi
Aspect Ratio
19.5:9
20:09
19.5:9
Screen Protection
Gorilla Glass 3
Gorilla Glass 5
Gorilla Glass 5
Screen to Body Ratio
91%
84.62%
90%
Screen Design
Waterdrop notch
Punch hole
Waterdrop notch
Screen Quality
FHD
FHD
FHD
Peak Brightness
420 nits
450 nits
-
Phone Variants
4GB 64GB, 6GB 128GB
4GB 64GB, 6GB 128GB, 4GB 128GB
4GB 64GB, 3GB 32GB, 6GB 128GB
Expandable Storage
Yes
Yes
Yes
RAM Type
LPDDR4X
LPDDR4X
LPDDR4X
Storage Type
UFS 2.1
UFS 2.1
eMMC 5.1
Expandable Storage Capacity
Yes, 512 GB
Yes, 512 GB
Yes, 512 GB
OTG Support
Yes
Yes
Yes
Sensors
Light sensor, Proximity sensor, Accelerometer, Gyroscope
Light sensor, Proximity sensor, Accelerometer, Compass, Gyroscope
Light sensor, Proximity sensor, Accelerometer, Compass, Gyroscope
Operating System
Android v10 (Q)
Android v10 (Q)
Android v9.0 (Pie)
GPU
Mali-G72 MP3
Adreno 618
Adreno 610
Chipset
Samsung Exynos 9 Octa 9611
Qualcomm Snapdragon 720G
Qualcomm Snapdragon 665
CPU
Octa core (2.3 GHz, Quad core, Cortex A73 + 1.7 GHz, Quad core, Cortex A53)
Octa core (2.3 GHz, Dual core, Kryo 465 + 1.8 GHz, Hexa Core, Kryo 465)
Octa core (2 GHz, Quad core, Kryo 260 + 1.8 GHz, Quad core, Kryo 260)
Custom User Interface
Samsung One UI
MIUI
MIUI
Clock Speed
2.3 GHz
2.3 GHz
2 GHz
Architecture
64 bit
64 bit
64 bit
Process Technology
10 nm
8 nm
11 nm
Battery Capacity
6000 mAh
5020 mAh
4000 mAh
Battery Removable
No
No
No
Battery Type
Li-ion
Li-Polymer
Li-Polymer
Charger Type
Fast, 15W
Fast, 18W
Fast, 18W
USB Type-C
Yes
Yes
Yes
Fast Charging
Yes
Yes
Yes
Announced On
18-Mar-20
17-Mar-20
5-Aug-19
Market Status
Available
Available
Available
Brand
Samsung
Xiaomi
Xiaomi
Model Number
SM-M215FZKDINS
M2003J6A1I
MZB8189IN
Price Status
Confirmed
Confirmed
Confirmed
Price
Rs. 13,499
Rs. 12,999
Rs. 12,499
GPS
Yes A-GPS, Glonass
Yes A-GPS, Glonass
Yes A-GPS, Glonass
Audio Features
Dolby Atmos
-
-
NFC
No
No
-
Network Support
4G
4G
4G
Bluetooth
Yes
Yes
Yes
3.5mm Audio Jack
Yes
Yes
Yes
SIM Size
SIM1: Nano, SIM2: Nano
SIM1: Nano, SIM2: Nano
SIM1: Nano, SIM2: Nano
Wi-Fi
Yes, Wi-Fi 802.11, ac/b/g/n/n 5GHz
Yes, Wi-Fi 802.11, ac/b/g/n, MIMO
Yes, Wi-Fi 802.11, a/ac/b/g/n/n 5GHz
Bluetooth Type
v5.0
v5.0
v5.0
Audio Jack
3.5 mm
3.5 mm
3.5 mm
SIM Slot(s)
Dual SIM, GSM+GSM
Dual SIM, GSM+GSM
Dual SIM, GSM+GSM
eSIM
No
No
No
Wi-Fi Features
Wi-Fi Direct, Mobile Hotspot
Wi-Fi Direct, Mobile Hotspot
Wi-Fi Direct, Mobile Hotspot
VoLTE
Yes
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) / 2600(band 7) / 900(band 8) / 850(band 5) / 800(band 20), 3G Bands: UMTS 1900 / 2100 / 850 / 900 MHz, 2G Bands: GSM 1800 / 1900 / 850 / 900 MHz, GPRS:...
4G Bands: TD-LTE 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 2300(band 40) / 2500(band 41), FD-LTE 2100(band 1) / 1800(band 3) / 850(band 5), 3G Bands: UMTS 1900 / 2100 / 850 / 900 MHz, 2G Bands: GSM 1800 / 1900 / 850 / 900 MHz, GPRS: Available, EDGE: Available...
SIM 2 Bands
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), 3G Bands: UMTS 1900 / 2100 / 850 / 900 MHz, 2G Bands: GSM 1800 / 1900 / 850 / 900 MHz, GPRS:...
4G Bands: TD-LTE 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 2300(band 40) / 2500(band 41), FD-LTE 2100(band 1) / 1800(band 3) / 850(band 5), 3G Bands: UMTS 1900 / 2100 / 850 / 900 MHz, 2G Bands: GSM 1800 / 1900 / 850 / 900 MHz, GPRS: Available, EDGE: Available...
Front Video Recording
1920x1080 @ 30 fps
1920x1080 @ 30 fps, 1280x720 @ 30 fps
1920x1080 @ 30 fps
Front Camera Features
HDR
HDR, panorama
HDR, panorama
Front Camera Setup
Single, 20MP
Single, 16MP
Single, 13MP
Front Camera 1 Resolution
20 MP
16 MP
13 MP
Front Camera 1 Type
f/2.2 Primary Camera
Primary Camera
f/2.0 Primary Camera
Front Camera 1 Lens
26 mm focal length
1 micrometre pixel size
1.12 micrometre pixel size
Front Sensor
CMOS
-
-
Front Aperture
f/2.2
-
f/2.0
Front Flash
No
-
-
Weight
188 grams
209 grams
188 grams
Colors
Midnight Blue, Raven Black
Aurora Blue, Glacier White, Interstellar Black, Champagne Gold
Nepture Blue, Moonlight White, Cosmic Purple, Space Black
Build
Back: Plastic
Back: Gorilla Glass
Back: Gorilla Glass
Dimensions
159 x 75.1 x 8.9 mm
165.7 x 76.6 x 8.8 mm
158.3 x 75.3 x 8.3 mm
SAR Value
Head: 0.468 W/kg
-
Head: 1.13 W/kg, Body: 0.634 W/kg
Water Resistance
-
Yes, Splash proof
Yes, Splash proof
OIS
No
-
No
Rear Flash
Yes, LED Flash
Yes, LED Flash
Yes, Dual LED Flash
Rear Video Recording
3840x2160 @ 30 fps, 1920x1080 @ 30 fps
3840x2160 @ 30 fps, 1920x1080 @ 60 fps, 1280x720 @ 960 fps
3840x2160 @ 30 fps, 1920x1080 @ 60 fps, 1280x720 @ 120 fps
Rear Camera Features
4 x Digital Zoom, Auto Flash, Face detection, Touch to focus
10 x Digital Zoom, Auto Flash, Face detection, Touch to focus
Digital Zoom, Auto Flash, Face detection, Touch to focus
Rear Camera Setup
Triple, 48MP + 8MP + 5MP
Quad, 48MP + 8MP + 5MP + 2MP
Quad, 48MP + 8MP + 2MP + 2MP
Rear Camera 1 Resolution
48 MP
48 MP
48 MP
Rear Camera 1 Type
f/2.0 (upto 4x Digital Zoom) Primary Camera
f/1.79 (upto 10x Digital Zoom) Primary Camera
f/1.79 Primary Camera
Rear Camera 1 Lens
26 mm focal length, 2" sensor size, 0.8 micrometre pixel size
2.25" sensor size, 1.6 micrometre pixel size
2" sensor size, 0.8 micrometre pixel size
Rear Camera 2 Resolution
8 MP
8 MP
8 MP
Rear Camera 2 Type
f/2.2, Wide Angle, Ultra-Wide Angle Camera
f/2.2, Wide Angle, Ultra-Wide Angle Camera
f/2.2, Wide Angle, Ultra-Wide Angle Camera
Rear Camera 2 Lens
12 mm focal length, 4.0" sensor size, 1.12 micrometre pixel size
1.12 micrometre pixel size
4.0" sensor size, 1.12 micrometre pixel size
Rear Camera 3 Resolution
5 MP
5 MP
2 MP
Rear Camera 3 Type
f/2.2, Depth Camera
f/2.4, Macro Camera
f/2.4, Macro Camera
Rear Sensor
CMOS image sensor
CMOS image sensor, ISOCELL Plus
ISOCELL Plus
Rear Aperture
f/2.0
f/1.79
f/1.79
Rear Camera 3 Lens
-
1.12 micrometre pixel size
5.0" sensor size, 1.75 micrometre pixel size
Rear Camera 4 Resolution
-
2 MP
2 MP
Rear Camera 4 Type
-
f/2.4, Depth Camera
f/2.4, Depth Camera
Rear Camera 4 Lens
-
1.75 micrometre pixel size
5.0" sensor size, 1.75 micrometre pixel size
Fingerprint Scanner
Yes
Yes
Yes
Fingerprint Scanner Position
Rear
Side
Rear
Face Unlock
Yes
Yes
Yes