Motorola One vs Xiaomi Redmi Note 9S vs Samsung Galaxy A21s

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

Display

Size:

5.9 inches
6.7 inches
6.5 inches

Resolution:

1520 x 720 pixels, 19:9 ratio, 285 PPI
2400 x 1080 pixels, 20:9 ratio, 395 PPI
1600 x 720 pixels, 20:9 ratio, 270 PPI

Technology:

IPS LCD
IPS LCD
TFT

Screen-to-body:

80.52 %
84.42 %
82.94 %

Colors:

16 777 216

Features:

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

Hardware

System chip:

Qualcomm Snapdragon 625 MSM8953
Qualcomm Snapdragon 720G SM7125
Samsung Exynos 850

Processor:

Octa-core, 2000 MHz, ARM Cortex-A53, 64-bit, 14 nm
Octa-core, 2300 MHz, Kryo 465, 64-bit, 8 nm
Octa-core, 2000 MHz, Arm Cortex-A55, 64-bit

GPU:

Adreno 506
Adreno 618
Mali-G76

RAM:

4GB LPDDR3
4GB LPDDR4
3GB LPDDR4

Internal storage:

64GB
64GB
32GB (eMMC 5.1), available to use: 19.5 GB

Storage expansion:

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

Device type:

Smartphone
Smartphone
Smartphone

OS:

Android (9.0 Pie, 8.1 Oreo)
Android (11, 10)
Android (10), Samsung One UI

Battery

Capacity:

3000 mAh
5020 mAh
5000 mAh

Type:

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

Battery life test results:

Charging:

Motorola TurboPower
Fast charging
Fast charging

Camera

Rear:

Dual camera
Quad camera
Quad camera

Main camera:

13 MP (PDAF)
48 MP (PDAF)
48 MP (PDAF)

Specifications:

Aperture size: F2.0; Pixel size: 1.12 μm
Aperture size: F1.8; Sensor size: 1/2"; Pixel size: 0.8 μm
Aperture size: F2.0; Focal length: 26 mm; Sensor size: 1/2"; Pixel size: 0.8 μm

Second camera:

2 MP (Depth information)
8 MP (Ultra-wide)
8 MP (Ultra-wide)

Specifications:

Aperture size: F2.4; Pixel size: 1.75 μm
Aperture size: F2.2; Pixel size: 1.12 μm
Aperture size: F2.2; Sensor size: 1/4"; Pixel size: 1.12 μm

Third camera:

5 MP (Macro, Autofocus)
2 MP (Macro)

Specifications:

Aperture size: F2.4; Pixel size: 1.12 μm
Aperture size: F2.4

Fourth camera:

2 MP (Depth information)
2 MP (Depth information)

Specifications:

Aperture size: F2.4; Pixel size: 1.75 μm
Aperture size: F2.4

Video recording:

3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (60 fps), 1280x720 (HD) (30 fps)
3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (120 fps), 1280x720 (HD) (960 fps)
1920x1080 (Full HD) (30 fps)

Features:

Time-lapse video, Video calling, Video sharing

Front:

8 MP (Flash)
16 MP (HDR, Slow-motion videos)
13 MP

Video capture:

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

Design

Dimensions:

5.91 x 2.83 x 0.31 inches (150 x 72 x 7.97 mm)
6.53 x 3.02 x 0.35 inches (165.75 x 76.68 x 8.8 mm)
6.44 x 2.96 x 0.35 inches (163.7 x 75.3 x 8.9 mm)

Weight:

5.71 oz (162.0 g)
7.37 oz (209.0 g)
6.77 oz (192.0 g)

Materials:

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

Biometrics:

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

Keys:

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

Colors:

Black, White
Interstellar grey, Aurora blue, Glacier white
Black, White, Blue, Red

Cellular

LTE (FDD):

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

UMTS:

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

Data Speed:

LTE Cat 4 (150/50 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA, UMTS
LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s

Dual SIM:

Yes
Yes
Yes

SIM type:

Nano SIM
Nano SIM
Nano SIM

VoLTE:

Yes

Multimedia

Headphones:

3.5mm jack
3.5mm jack
3.5mm jack

Speakers:

Earpiece, Loudspeaker
Earpiece, Loudspeaker
Earpiece, Loudspeaker

Features:

Album art cover, Background playback

Screen mirroring:

Wireless screen share
Wireless screen share
Wireless screen share

Radio:

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; Hotspot, Wi-Fi Direct
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)
Type-C (reversible), USB 2.0

Features:

Mass storage device, Charging
Charging
Charging

Location:

GPS, A-GPS, Glonass, Galileo
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
Accelerometer, Gyroscope

Other:

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

Phone features

Notifications:

Haptic feedback, Music ringtones, Vibration

Other features:

Voice dialing, Voice commands, Voice recording, TTY/TDD

Buyers information

Price:

$ 400
$ 249
€ 240

User Manual:

This is the official Samsu​ng Galaxy A21s User Guide in English provided from the manufacturer.

In The Box:

Charger, USB cable, Case
22.5W Wire charger, Simple protective cover, USB Type-C cable, SIM eject tool, User guide, Warranty card

Availability

Officially announced:

Aug 31, 2018
Mar 23, 2020
May 15, 2020
This copy is for your personal, non-commercial use only. You can order presentation-ready copies for distribution to your colleagues, clients or customers at https://www.parsintl.com/phonearena or use the Reprints & Permissions tool that appears at the bottom of each web page. Visit https://www.parsintl.com/ for samples and additional information.
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