Samsung Galaxy A21 vs T-Mobile Revvl 4+

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Display

Size

6.5 inches
6.5 inches

Resolution

1600 x 720 pixels, 20:9 ratio,
270 PPI
1600 x 720 pixels, 20:9 ratio,
269 PPI

Technology

IPS LCD
LCD

Screen-to-body

79.20 %
82.56 %

Features

Ambient light sensor, Proximity sensor
Ambient light sensor, Proximity sensor

Hardware

System chip

Mediatek Helio P35
Qualcomm Snapdragon 665 SM6125

Processor

Octa-core, 2300 MHz, Arm Cortex-A53, 64-bit, 12 nm
Octa-core, 1800 MHz, Kryo 260, 64-bit, 11 nm

GPU

PowerVR GE8320
Adreno 610

RAM

3GB LPDDR4
4GB

Internal storage

32GB (eMMC 5.1), available to use: 19.8 GB
64GB

Storage expansion

microSDXC up to 512 GB
microSDXC up to 256 GB

Device type

Smartphone
Smartphone

OS

Android (10), Samsung One UI
Android (10)

Battery

Capacity

4000 mAh
4000 mAh

Type

Li - Polymer, Not user replaceable
Not user replaceable

Charging

Fast charging
Qualcomm Quick Charge 3.0

Max charge speed

Wired: 15.0W
 

Camera

Rear

Quad camera
Dual camera

Main camera

16 MP (PDAF)
16 MP (Autofocus)

Specifications

Aperture size: F1.8; Sensor size: 1/3.06"; Pixel size: 1 μm
Aperture size: F1.8

Second camera

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

Specifications

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

Third camera

2 MP (Macro)
 

Specifications

Aperture size: F2.4
 

Fourth camera

2 MP (Depth information)
 

Specifications

Aperture size: F2.4
 

Video recording

1920x1080 (Full HD) (30 fps)
3840x2160 (4K UHD)

Front

13 MP
16 MP

Design

Dimensions

6.61 x 3.02 x 0.32 inches (167.8 x 76.7 x 8.1 mm)
6.51 x 2.96 x 0.32 inches (165.4 x 75.2 x 8.1 mm)

Weight

6.81 oz (193.0 g)
the average is 6.3 oz (179 g)
6.35 oz (180.0 g)
the average is 6.3 oz (179 g)

Materials

Back: Plastic; Frame: Plastic
Back: Plastic

Biometrics

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

Keys

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

Colors

Black
Steel gray

Cellular

Carrier locked

 
Yes

LTE (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), 25(1900+), 26(850+), 28(700 APT), 66(AWS-3), 71(600)
Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 13(700 c), 20(800 DD), 25(1900+), 26(850+), 28(700 APT), 66(AWS-3), 71(600)

LTE (TDD)

Bands 38(2600), 39(1900+), 40(2300), 41(2600+)
Bands 38(2600), 39(1900+), 40(2300), 41(2600+)

UMTS

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

Data Speed

LTE-A Cat 6 (300/50 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
LTE-A Cat 12 (600/100 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s

SIM type

Nano SIM
Nano SIM

HD Voice

Yes
Yes

VoLTE

 
Yes

Multimedia

Headphones

3.5mm jack
3.5mm jack

Speakers

Earpiece, Loudspeaker
Earpiece, Loudspeaker

Screen mirroring

Wireless screen share
Wireless screen share

Radio

FM
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; 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
Charging

Location

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

Sensors

Accelerometer, Gyroscope, Compass
Accelerometer

Other

NFC
NFC

Hearing aid compatible

M4, T3
M3, T3

Regulatory Approval

FCC approval

 
 

Date approved

Apr 17, 2020
Jun 18, 2020

FCC ID value: ZCASMA215U link
FCC ID value: 2ACCJH122 link

Measured SAR

 
 

Head

0.42 W/kg
1.02 W/kg

Body

1.27 W/kg
0.47 W/kg

Simultaneous Transmission

1.27 W/kg
1.47 W/kg

Wireless Router

1.27 W/kg
1.34 W/kg

Phablet

 
3.86 W/kg

Buyers information

Price

$ 250
$ 192

In The Box

Download the Samsu​ng Galaxy A21 Manual as a PDF file.
Quick Start Guide, Charger Head, Data cable, Product Safety Information, SIM Tool

Availability

Officially announced

Apr 08, 2020
Aug 27, 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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