Samsung Galaxy A9 (2018) vs Xiaomi Redmi Note 7 Specs Comparison

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

Display

Size:

6.3 inches
6.3 inches

Resolution:

2220 x 1080 pixels, 18.5:9 ratio, 392 PPI
2340 x 1080 pixels, 19.5:9 ratio, 409 PPI

Technology:

Super AMOLED
IPS LCD

Screen-to-body:

80.51 %
81.37 %

Features:

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

Hardware

System chip:

Qualcomm Snapdragon 660 SDM660 (14 nm)
Qualcomm Snapdragon 660 SDM660 (14 nm)

Processor:

Octa-core, 2200 MHz, Kryo 260, 64-bit
Octa-core, 2200 MHz, Kryo 260, 64-bit

GPU:

Adreno 512
Adreno 512

RAM:

6GB LPDDR4
4GB LPDDR4

Internal storage:

128GB, available to use: 108.9 GB
128GB

Storage expansion:

microSDXC up to 512 GB
microSDXC up to 256 GB

Device type:

Smartphone
Smartphone

OS:

Android (10, 9.0 Pie, 8.0 Oreo), Samsung One UI
Android (9.0 Pie)

Battery

Capacity:

3800 mAh
4000 mAh

Type:

Li - Polymer, Not user replaceable
Not user replaceable

Charging:

Samsung Adaptive Fast Charging
Qualcomm Quick Charge 4

Camera

Rear:

Quad camera
Dual camera

Main camera:

24 MP (PDAF)
48 MP (PDAF, CMOS image sensor, BSI sensor)

Specifications:

Aperture size: F1.7; Focal length: 27 mm; Sensor size: 1/2.8"; Pixel size: 0.9 μm
Aperture size: F1.8; Sensor size: 1/2"; Pixel size: 0.8 μm

Second camera:

10 MP (Telephoto, Autofocus)
5 MP (Depth information)

Specifications:

Optical zoom: 2.0x; Aperture size: F2.4; Focal Length: 52 mm; Sensor size: 1/3.9"; Pixel size: 1 μm
Aperture size: F2.4

Third camera:

8 MP (Ultra-wide)

Specifications:

Aperture size: F2.4; Focal Length: 12 mm; Sensor size: 1/4"; Pixel size: 1.12 μm

Fourth camera:

5 MP (Depth information)

Specifications:

Aperture size: F2.2; Focal Length: 24 mm; Sensor size: 1/5"; Pixel size: 1.12 μm

Flash:

LED
Dual LED

Video recording:

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

Features:

Hyperlapse, Continuous autofocus, EIS, Video calling, Video sharing
Continuous autofocus, EIS, Video calling, Video sharing

Front:

24 MP
13 MP (HDR)

Video capture:

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

Design

Dimensions:

6.40 x 3.03 x 0.31 inches (162.5 x 77 x 7.8 mm)
6.27 x 2.96 x 0.32 inches (159.21 x 75.21 x 8.1 mm)

Weight:

6.46 oz (183.0 g)
6.56 oz (186.0 g)

Materials:

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

Biometrics:

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

Keys:

Left: Other; Right: Volume control, Lock/Unlock key; Back: Other
Right: Volume control, Lock/Unlock key

Colors:

Caviar black, Lemonade blue, Bubblegum pink
Black, Blue, Red

Cellular

4G (FDD):

Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 13(700 c), 17(700 b), 20(800 DD), 26(850+), 28(700 APT), 66(AWS-3)
Bands 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 20(800 DD)

4G (TDD):

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

3G:

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

Data Speed:

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

Dual SIM:

Shared with microSD

SIM type:

Nano SIM
Nano SIM

Multimedia

Headphones:

3.5mm jack
3.5mm jack

Speakers:

Earpiece, Loudspeaker
Earpiece, Loudspeaker

Features:

Album art cover, Background playback
Album art cover, Background playback

Screen mirroring:

Wireless screen share
Wireless screen share

Radio:

FM

Additional microphone(s):

for Noise cancellation

Connectivity & Features

Bluetooth:

5.0
5.0

Wi-Fi:

802.11 a, b, g, n, ac, dual-band; MIMO, 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)

Features:

Charging, Mass storage device
Charging, Mass storage device

Location:

GPS, A-GPS, Glonass, Galileo, BeiDou
GPS, A-GPS, Glonass, Galileo, BeiDou

Sensors:

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

Other:

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

Regulatory Approval

FCC approval:

Date approved:

Oct 18, 2018

FCC ID value:

A3LSMA920F

Measured SAR:

Head:

0.24 W/kg

Body:

0.84 W/kg

Simultaneous Transmission:

1.58 W/kg

Wireless Router:

1.40 W/kg

Phablet:

3.95 W/kg

Buyers information

In The Box:

Charger, USB cable, Headphones, SIM removal tool, Documentation
Adapter, USB Cable type C, Tool to remove the SIM, User manual, Housing, Warranty

Availability

Officially announced:

Oct 11, 2018
Jan 10, 2019
FCC OKs Cingular\'s purchase of AT&T Wireless