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Xiaomi Redmi K40 vs Xiaomi Redmi 9A vs Xiaomi Redmi Note 7S

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Last Updated: 
12th Mar 2021

Key Feature Comparison

Xiaomi Redmi K40
8/10
Xiaomi Redmi 9A
₹6,799
7/10
Xiaomi Redmi Note 7S
₹9,999
8/10
Xiaomi Redmi K40
Xiaomi Redmi K40
8/10
8/10
VS
Xiaomi Redmi 9A
Xiaomi Redmi 9A
7/10
₹6,799
7/10
VS
Xiaomi Redmi Note 7S
Xiaomi Redmi Note 7S
8/10
₹9,999
8/10
Display
Screen Size
6.67 inches
6.53 inches
6.3 inches
Screen Type
Super AMOLED
IPS LCD
IPS LCD
Screen Resolution
1080 x 2400 pixels
720 x 1600 pixels
1080 x 2340 pixels
Pixel Density
395 ppi
269 ppi
409 ppi
Aspect Ratio
20:09
20:09
19.5:9
Screen Protection
Corning Gorilla Glass v5
-
Corning Gorilla Glass v5
Screen to Body Ratio
85.88%
81.08%
81.21%
Screen Design
Punch-Hole Display
Waterdrop Notch
Waterdrop Notch
Screen Refresh Rate
120 Hz
-
-
Screen Quality
FHD
HD
FHD
Peak Brightness
1300 nits
400 nits
-
Battery
Battery Capacity
4520 mAh
5000 mAh
4000 mAh
Battery Removable
No
No
No
Battery Type
Li-Polymer
Li-Polymer
Li-Polymer
Charger Type
Fast, 33W
-
Quick, v4.0
USB Type-C
Yes
No
Yes
Fast Charging
Yes
-
Yes
Charging Time
100 % in 52 minutes
-
-
General
Announced On
25-Feb-21
30-Jun-20
5-May-19
Market Status
Upcoming
Available
Available
Brand
Xiaomi
Xiaomi
Xiaomi
Price Status
Expected
Confirmed
Confirmed
Price
Rs. 22,490
Rs. 6,090
Rs. 10,990
Performance
GPU
Adreno 650
PowerVR GE8320
Adreno 512
Operating System
Android v11
Android v10 (Q)
Android v9.0 (Pie)
Chipset
Qualcomm Snapdragon 870
MediaTek Helio G25
Qualcomm Snapdragon 660 MSM8956
CPU
Octa core (3.2 GHz, Single core, Kryo 585 + 2.42 GHz, Tri core, Kryo 585 + 1.8 GHz, Quad core, Kryo 585)
Octa core, 2 GHz, Cortex A53
Octa core (2.2 GHz, Quad core, Kryo 260 + 1.84 GHz, Quad core, Kryo 260)
Custom User Interface
MIUI
MIUI
MIUI
Clock Speed
3.2 GHz
2 GHz
2.2 GHz
Architecture
64 bit
64 bit
64 bit
Memory & Storage
Phone Variants
6GB 128GB
32GB 2GB RAM, 32GB 3GB RAM
64 GB, 4 GB RAM or 32 GB, 3 GB RAM
Expandable Storage
No
Yes
Yes
RAM Type
LPDDR5
LPDDR4X
LPDDR4X
Storage Type
UFS 3.1
eMMC 5.1
eMMC 5.1
Expandable Storage Capacity
-
Yes, 512 GB
Yes, 256 GB
Miscellaneous Features
Sensors
Light sensor, Proximity sensor, Accelerometer, Compass, Gyroscope
Light sensor, Proximity sensor, Accelerometer, Compass
Light sensor, Proximity sensor, Accelerometer, Compass, Gyroscope
Network & Connectivity
GPS
Yes A-GPS, Glonass
Yes A-GPS, Glonass
Yes A-GPS, Glonass
Audio Features
Dual stereo speakers
-
Active noise cancellation with dedicated mic
NFC
Yes
No
-
Bluetooth
Yes
Yes
Yes
FM Radio
No
-
-
3.5mm Audio Jack
No
Yes
Yes
Bluetooth Type
v5.1
v5.0
v5.0
Audio Jack
USB Type-C
3.5 mm
3.5 mm
Front Camera
Front Video Recording
1920x1080 @ 30 fps
1920x1080 @ 30 fps
1920x1080 @ 30 fps
Front Camera Features
HDR
HDR
HDR
Front Camera Setup
Single, 20MP
Single, 5MP
Single, 13MP
Front Camera 1 Resolution
20 MP
5 MP
13 MP
Front Camera 1 Type
f/2.4, Wide Angle Primary Camera
f/2.2 Primary Camera
f/2.0 Primary Camera
Front Camera 1 Lens
3.4" sensor size, 0.8 micrometre pixel size
1.12 micrometre pixel size
3.1" sensor size, 1.12 micrometre pixel size
Design
Weight
196 grams
194 grams
186 grams
Colors
Glossy Black, Icy White, Dreamland
Midnight Black, Sea Blue, Nature Green
Onyx Black, Sapphire Blue, Ruby Red, Astro White
Build
Glass front (Gorilla Glass), glass back (Gorilla Glass), aluminum frame
Back Panel: Plastic
Back: Gorilla Glass
Dimensions
163.7 x 76.4 x 7.8 mm
164.9 x 77 x 9 mm
159.2 x 75.2 x 8.1 mm
IP Certification
-
Yes, Splash proof
Yes, Splash proof
Network
Network Support
5G supported by device (network not rolled-out in India), 4G (supports Indian bands), 3G, 2G
4G (supports Indian bands), 3G, 2G
4G (supports Indian bands), 3G, 2G
SIM Size
SIM1: Nano, SIM2: Nano
SIM1: Nano, SIM2: Nano
SIM1: Nano, SIM2: Nano (Hybrid)
Wi-Fi
Yes, Wi-Fi 802.11, ac/b/g/n/n 5GHz
Yes, Wi-Fi 802.11, a/b/g/n
Yes, Wi-Fi 802.11, a/ac/b/g/n/n 5GHz
SIM Slot(s)
Dual SIM, GSM+GSM
Dual SIM, GSM+GSM
Dual SIM, GSM+GSM, Dual VoLTE
eSIM
No
No
No
Wi-Fi Features
Mobile Hotspot
Mobile Hotspot
Wi-Fi Direct, Mobile Hotspot
VoLTE
Yes
Yes
Yes
SIM 1 Bands
4G Bands: TD-LTE 2300(band 40), FD-LTE 1800(band 3), 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) / 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) / 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...
SIM 2 Bands
4G Bands: TD-LTE 2300(band 40), FD-LTE 1800(band 3), 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) / 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) / 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...
Rear Camera
Rear Flash
Yes, LED Flash
Yes, LED Flash
Yes, LED Flash
Rear Video Recording
3840x2160 @ 30 fps, 1920x1080 @ 30 fps
1920x1080 @ 30 fps
1920x1080 @ 30 fps, 1280x720 @ 30 fps
Rear Camera Features
Digital Zoom, Auto Flash, Face detection, Touch to focus
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
Single, 13MP
Dual, 48MP + 5MP
Rear Camera 1 Resolution
48 MP
13 MP
48 MP
Rear Camera 1 Type
f/1.79, Wide Angle Primary Camera
f/2.2 Primary Camera
f/1.8 Primary Camera
Rear Camera 1 Lens
26 mm focal length, 2" sensor size, 0.8 micrometre pixel size
1 micrometre pixel size
2" sensor size, 0.8 micrometre pixel size
Rear Camera 2 Resolution
8 MP
-
5 MP
Rear Camera 2 Type
f/2.2, Wide Angle, Ultra-Wide Angle Camera
-
f/2.2, Depth Camera
Rear Camera 3 Resolution
5 MP
-
-
Rear Camera 3 Type
f/2.4, Macro Camera
-
-
Rear Camera 3 Lens
5.0" sensor size, 1.12 micrometre pixel size
-
-
Rear Sensor
Exmor-RS CMOS Sensor
-
ISOCELL Plus
Sensors
Fingerprint Scanner
Yes
No
Yes
Fingerprint Scanner Position
Side
-
Rear

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