Xiaomi Redmi Note 7 vs Samsung Galaxy A40

$186.11 VIEW ON AMAZON

Display

Display size

6.3 inches
5.9 inches

Resolution

1080 x 2340 pixels
1080 x 2340 pixels

Pixel density

409 ppi
437 ppi

Technology

IPS LCD
Super AMOLED

Screen-to-body ratio

81.37 %
85.73 %

Features

Scratch-resistant glass (Corning Gorilla Glass 5), Ambient light sensor, Proximity sensor
Scratch-resistant glass (Corning Gorilla Glass 3), Ambient light sensor, Proximity sensor

Camera

Rear

Dual camera
Dual camera

Main camera

48 megapixels
16 megapixels

Hardware Features

Phase detection autofocus, CMOS image sensor, Back-illuminated sensor (BSI)
Phase detection autofocus

Specifications

Aperture size: F1.8; Sensor size: 1/2"; Pixel size: 0.8 μm
Aperture size: F1.7; Focal length: 27 mm; Sensor size: 1/2.8"; Pixel size: 1.12 μm

Second camera

5 megapixels
5 megapixels

Hardware Features

Depth information
Ultra-wide

Specifications

Aperture size: F2.4
Aperture size: F2.2; Focal Length: 13 mm; Sensor size: 1/5"; Pixel size: 1.12 μm

Flash

Dual LED
LED

Video recording

1920x1080 (Full HD) (120 fps), 1280x720 (HD) (120 fps)
1920x1080 (Full HD) (30 fps)

Features

Continuous autofocus, Digital image stabilization, Video calling, Video sharing
Hyperlapse, Video calling, Video sharing

Front

13 megapixels
25 megapixels

Features

High Dynamic Range mode (HDR)
 

Design

Dimensions

6.27 x 2.96 x 0.32 inches (159.21 x 75.21 x 8.1 mm)
5.68 x 2.72 x 0.31 inches (144.3 x 69.1 x 7.9 mm)

Weight

6.56 oz (186 g)
the average is 6 oz (172 g)
4.94 oz (140 g)
the average is 6 oz (172 g)

Materials

Back: Glass (Corning Gorilla Glass 5)
Back: Plastic

Biometrics

2D Face unlock, Fingerprint (touch)
2D Face unlock, Fingerprint (touch)

Colors

Black, Blue, Red
Black, Pink, Blue, White

Hardware & Performance

System chip

Qualcomm Snapdragon 660 SDM660
Samsung Exynos 7 Octa 7885

Processor

Octa-core, 2200 MHz, Kryo 260, 64-bit, 14 nm
Octa-core, 1800 MHz, ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 14 nm

GPU

Adreno 512
Mali-G71 MP2

RAM

4 GB
4 GB

Internal storage

128 GB
64 GB

Maximum User Storage

 
49.4 GB

Storage expansion

up to 256 GB
up to 512 GB

OS

Android (9.0 Pie)
Android (9.0 Pie), Samsung One UI

Battery

Capacity

4000 mAh
3100 mAh

Charging

Qualcomm Quick Charge 4
Samsung Adaptive Fast Charging

Talk time

23.00 hours
the average is 23 h (1379 min)
 

Stand-by time

10.5 days (251 hours)
the average is 21 days (498 h)
 

Talk time (3G)

 
18.00 hours
the average is 23 h (1387 min)

Internet use

 
 

3G

 
9 hours

LTE

 
11 hours

Wi-Fi

 
11 hours

Music playback

 
62.00 hours

Video playback

13.00 hours
14.00 hours

Cellular

LTE (FDD)

Bands 2, 3, 4, 5, 7, 8, 20
Bands 1, 3, 5, 7, 8, 20

LTE (TDD)

Bands 38, 40
Bands 38, 40, 41

UMTS

850, 900, 1700/2100, 1900, 2100 MHz
850, 900, 1900, 2100 MHz

GSM

850, 900, 1800, 1900 MHz
850, 900, 1800, 1900 MHz

Data

LTE-A Cat 9 (450/50 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
LTE-A Cat 12/13 (600/150 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s

Dual SIM

Yes
Yes

SIM type

Nano SIM
Nano SIM

Connectivity

Bluetooth

5.0
5.0

Wi-Fi

802.11 a, b, g, n, ac, dual-band
802.11 a, b, g, n, ac, dual-band

USB

Yes
USB 2.0

Connector

USB Type-C (reversible)
USB Type-C (reversible)

Features

Mass storage device
Mass storage device

Mobile Payment

 
Samsung Pay

Location

GPS, A-GPS, Glonass, Galileo, BeiDou
GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning

Other

Infrared, VoIP, Tethering, Computer sync, OTA sync
NFC, ANT+, VoIP, Tethering, Computer sync, OTA sync

Phone features

Sensors

Accelerometer, Gyroscope, Compass
Accelerometer, Gyroscope, Compass, Hall (for flip covers)

Notifications

Haptic feedback, Music ringtones, Vibration
Haptic feedback, Music ringtones, Vibration

Other features

Voice dialing, Voice commands, Voice recording
Voice dialing, Voice commands, Voice recording

Multimedia

Screen mirroring

Wireless screen share
Wireless screen share

Radio

 
FM

Speakers

Earpiece, Loudspeaker
Earpiece, Loudspeaker

Headphones connector

3.5mm
3.5mm

Additional microphone(s)

for Noise cancellation
for Noise cancellation

Regulatory Approval

FCC approval

 
 

Date approved

 
Mar 08, 2019

 
FCC ID value: A3LSMA405FN link

FCC measured SAR

 
 

Head

 
0.51 W/kg

Body

 
0.46 W/kg

Simultaneous Transmission

 
1.02 W/kg

Wireless Router

 
0.61 W/kg

Shopping information

In The Box

Adapter, USB Cable type C, Tool to remove the SIM, User manual, Housing, Warranty
 
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