Xiaomi Redmi Note 8T vs Samsung Galaxy A40 vs Xiaomi Redmi Note 8 Pro

Compare phone and tablet specifications of up to three devices at once.

Display

Size:

6.3 inches
5.9 inches
6.5 inches

Resolution:

2340 x 1080 pixels, 19.5:9 ratio, 409 PPI
2340 x 1080 pixels, 19.5:9 ratio, 437 PPI
2340 x 1080 pixels, 19.5:9 ratio, 395 PPI

Technology:

IPS LCD
Super AMOLED
IPS LCD

Screen-to-body:

80.20 %
85.73 %
84.88 %

Peak brightness:

500 cd/m2 (nit)

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

Hardware

System chip:

Qualcomm Snapdragon 665 SM6125
Exynos 7904
MediaTek Helio G90T

Processor:

Octa-core, 2000 MHz, Kryo 260, 64-bit, 11 nm
Octa-core, 1800 MHz, ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 14 nm
Octa-core, 2000 MHz, ARM Cortex-A76 and ARM Cortex-A55, 64-bit, 12 nm

GPU:

Adreno 610
Mali-G71 MP2
Mali G76 MC4

RAM:

3GB
4GB LPDDR4
6GB LPDDR4

Internal storage:

32GB
64GB, available to use: 49.4 GB
64GB

Storage expansion:

microSDXC up to 256 GB
microSDXC up to 512 GB
microSDXC up to 256 GB

Device type:

Smartphone
Smartphone
Smartphone

OS:

Android (9.0 Pie)
Android (11, 10, 9.0 Pie), Samsung One UI
Android

Battery

Capacity:

4000 mAh
3100 mAh
4500 mAh

Type:

Li - Polymer, Not user replaceable
Li - Polymer, Not user replaceable
Li - Polymer, Not user replaceable

Charging:

Fast charging
Samsung Adaptive Fast Charging
Fast charging

Camera

Rear:

Quad camera
Dual camera
Triple camera

Main camera:

48 MP (PDAF)
16 MP (PDAF)
PDAF, CMOS image sensor

Specifications:

Aperture size: F1.8; Focal length: 26 mm; 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
Aperture size: F1.9; Focal length: 26 mm; Sensor size: 1/1.7"; Pixel size: 0.8 μm

Second camera:

8 MP (Ultra-wide)
5 MP (Ultra-wide)
8 MP (Ultra-wide)

Specifications:

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

Third camera:

2 MP (Depth information)
2 MP (Macro)

Specifications:

Aperture size: F2.4; Pixel size: 1.75 μm
Aperture size: F2.4; Sensor size: 1/5"; Pixel size: 1.75 μm

Fourth camera:

2 MP (Macro)
2 MP (Depth information)

Specifications:

Aperture size: F2.4; Pixel size: 1.75 μm
Aperture size: F2.4; Sensor size: 1/5"; Pixel size: 1.75 μm

Video recording:

3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (120 fps), 1280x720 (HD) (240 fps)
1920x1080 (Full HD) (30 fps)
3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (120 fps), 1280x720 (HD) (960 fps)

Features:

EIS
Hyperlapse, Video calling, Video sharing
EIS

Front:

13 MP
25 MP
20 MP (HDR)

Video capture:

1920x1080 (Full HD)
1920x1080 (Full HD)
1920x1080 (Full HD)

Design

Dimensions:

6.34 x 2.97 x 0.34 inches (161.15 x 75.4 x 8.6 mm)
5.69 x 2.72 x 0.31 inches (144.4 x 69.2 x 7.9 mm)
6.35 x 3.01 x 0.35 inches (161.35 x 76.4 x 8.79 mm)

Weight:

7.05 oz (199.8 g)
4.94 oz (140.0 g)
7.05 oz (199.8 g)

Materials:

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

Resistance:

Splash
Splash

Biometrics:

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

Keys:

Right: Volume control, Lock/Unlock key
Right: Volume control, Lock/Unlock key
Right: Volume control, Lock/Unlock key

Colors:

Moonlight white, Neptune blue, Space black
Black, Coral, Blue, White
Mineral grey, Pearl white, Forest green

Cellular

LTE (FDD):

Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 20(800 DD), 28(700 APT)
Bands 1(2100), 3(1800), 5(850), 7(2600), 8(900), 20(800 DD)
Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 20(800 DD), 28(700 APT)

LTE (TDD):

Bands 38(2600), 40(2300)
Bands 38(2600), 40(2300), 41(2600+)
Bands 38(2600), 40(2300)

UMTS:

Bands 5(850), 8(900), 4(1700/2100), 2(1900), 1(2100)
Bands 1(2100), 2(1900), 5(850), 8(900)
Bands 5(850), 8(900), 4(1700/2100), 2(1900), 1(2100)

Data Speed:

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

Dual SIM:

Yes
Yes
Shared with microSD

SIM type:

Nano SIM
Nano SIM
Nano SIM

VoLTE:

Yes
Yes

Multimedia

Headphones:

3.5mm jack
3.5mm jack
3.5mm jack

Speakers:

Earpiece, Loudspeaker
Earpiece, Loudspeaker
Earpiece, Loudspeaker

Features:

Dolby Atmos, Album art cover, Background playback

Screen mirroring:

Wireless screen share
Wireless screen share
Wireless screen share

Radio:

FM
FM
FM

Additional microphone(s):

for Noise cancellation
for Noise cancellation

Connectivity & Features

Bluetooth:

4.2
5.0
5.0

Wi-Fi:

802.11 a, b, g, n, ac, dual-band; Wi-Fi Direct, Hotspot
802.11 a, b, g, n, ac, dual-band; Wi-Fi Direct, Hotspot
802.11 a, b, g, n, ac, dual-band; Wi-Fi Direct, Hotspot

USB:

Type-C (reversible), USB 2.0
Type-C (reversible), USB 2.0
Type-C (reversible), USB 2.0

Features:

Charging, OTG
Charging, Mass storage device
Charging

Location:

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

Sensors:

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

Other:

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

Regulatory Approval

FCC approval:

Date approved:

Mar 08, 2019

FCC ID value:

A3LSMA405FN link

Measured SAR:

Head:

0.51 W/kg

Body:

0.46 W/kg

Simultaneous Transmission:

1.02 W/kg

Wireless Router:

0.61 W/kg

Buyers information

In The Box:

Power adapter, USB Type-C cable, Removal tool for SIM card, User guide, Warranty card
Power adapter, Simple protective cover, USB Type-C cable, SIM eject tool, User guide, Warranty card

Availability

Officially announced:

Apr 10, 2019
FCC OKs Cingular\'s purchase of AT&T Wireless