Motorola One vs Xiaomi Redmi Note 9S vs Samsung Galaxy A21s - specs comparison

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

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

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

Storage expansion:

microSDXC up to 256 GB

microSDXC up to 512 GB

Device type:

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

Battery life test results:

link

Charging:

Motorola TurboPower

Fast charging

Camera

Rear:

Dual camera

Quad camera

Main camera:

13 MP (PDAF)

48 MP (PDAF)

Specifications:

F2.0; 1.12 μm

F1.8; 1/2"; 0.8 μm

F2.0; 26 mm; 1/2"; 0.8 μm

Second camera:

2 MP (Depth information)

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)

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)

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)

2D Face unlock, Fingerprint (touch)

Keys:

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), 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

Dual SIM:

Yes

SIM type:

Nano SIM

VoLTE:

Yes

Multimedia

Headphones:

3.5mm jack

Speakers:

Earpiece, Loudspeaker

Features:

Album art cover, Background playback

Screen mirroring:

Wireless screen share

Radio:

FM

Additional microphone(s):

for Noise cancellation

Connectivity & Features

Bluetooth:

4.2

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

USB:

Type-C (reversible), USB 2.0

Type-C (reversible)

Type-C (reversible), USB 2.0

Features:

Mass storage device, Charging

Charging

Location:

GPS, A-GPS, Glonass, Galileo

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

Sensors:

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 Samsung 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