Samsung Galaxy J7 (2016) vs Samsung Galaxy A21

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from $500
from $165

Display

Size

5.5 inches
6.5 inches

Resolution

1280 x 720 pixels,
267 PPI
1600 x 720 pixels, 20:9 ratio,
270 PPI

Technology

Super AMOLED
IPS LCD

Screen-to-body

72.41 %
79.20 %

Features

Proximity sensor
Ambient light sensor, Proximity sensor

Hardware

System chip

Samsung Exynos 7 Octa 7870
Mediatek Helio P35

Processor

Octa-core, 1600 MHz, ARM Cortex-A53, 64-bit, 14 nm
Octa-core, 2300 MHz, Arm Cortex-A53, 64-bit, 12 nm

GPU

Mali-T830 MP2
PowerVR GE8320

RAM

2GB LPDDR3
3GB LPDDR4

Internal storage

16GB, available to use: 10.8 GB
32GB (eMMC 5.1), available to use: 19.8 GB

Storage expansion

microSDXC up to 128 GB
microSDXC up to 512 GB

Device type

Smartphone
Smartphone

OS

Android (7.0 Nougat, 6.0 Marshmallow)
Android (10), Samsung One UI

Battery

Capacity

3300 mAh
4000 mAh

Type

Li - Ion, User replaceable
Li - Polymer, Not user replaceable

Charging

 
Fast charging

Max charge speed

 
Wired: 15.0W

Camera

Rear

Single camera
Quad camera

Main camera

13 MP (Autofocus, CMOS image sensor)
16 MP (PDAF)

Specifications

Aperture size: F1.9; Focal length: 28 mm
Aperture size: F1.8; Sensor size: 1/3.06"; Pixel size: 1 μm

Second camera

 
8 MP (Ultra-wide)

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)
1920x1080 (Full HD) (30 fps)

Features

Video calling
 

Front

5 MP (Flash)
13 MP

Design

Dimensions

5.97 x 2.99 x 0.31 inches (151.7 x 76 x 7.8 mm)
6.61 x 3.02 x 0.32 inches (167.8 x 76.7 x 8.1 mm)

Weight

5.96 oz (169.0 g)
the average is 6.3 oz (179 g)
6.81 oz (193.0 g)
the average is 6.3 oz (179 g)

Materials

 
Back: Plastic; Frame: Plastic

Biometrics

 
Fingerprint (touch)

Features

Touch sensitive control keys
 

Keys

Left: Volume control; Right: Camera shutter
Right: Volume control, Lock/Unlock key

Colors

Gold, Pink, White, Rose gold
Black

Cellular

LTE (FDD)

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), 12(700 a), 13(700 c), 17(700 b), 20(800 DD), 25(1900+), 26(850+), 28(700 APT), 66(AWS-3), 71(600)

LTE (TDD)

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

UMTS

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

Data Speed

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

SIM type

Micro SIM
Nano SIM

HD Voice

 
Yes

Multimedia

Headphones

3.5mm jack
3.5mm jack

Speakers

Earpiece, Loudspeaker
Earpiece, Loudspeaker

Features

Album art cover, Background playback
 

Screen mirroring

Wireless screen share
Wireless screen share

Radio

FM
FM

Connectivity & Features

Bluetooth

4.1
5.0

Wi-Fi

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

USB

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

Features

Charging, Mass storage device
Charging

Location

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

Sensors

Accelerometer
Accelerometer, Gyroscope, Compass

Other

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

Hearing aid compatible

 
M4, T3

Regulatory Approval

FCC approval

 
 

Date approved

 
Apr 17, 2020

 
FCC ID value: ZCASMA215U link

Measured SAR

 
 

Head

0.35 W/kg
0.42 W/kg

Body

1.39 W/kg
1.27 W/kg

Simultaneous Transmission

 
1.27 W/kg

Wireless Router

 
1.27 W/kg

Buyers information

Price

 
$ 250

In The Box

 
Download the Samsu​ng Galaxy A21 Manual as a PDF file.

Availability

Officially announced

Mar 28, 2016
Apr 08, 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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