Samsung Galaxy J7 vs Samsung Galaxy A21 - specs comparison

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:

69.72 %

79.20 %

Colors:

16 777 216

Touchscreen:

Capacitive, Multi-touch

Features:

Ambient light sensor, Proximity sensor

60Hz refresh rate, Ambient light sensor, Proximity sensor

Hardware

System chip:

Qualcomm Snapdragon 615 8939

Mediatek Helio P35

Processor:

Octa-core, 1500 MHz, ARM Cortex-A53, 64-bit

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

GPU:

Adreno 405

PowerVR GE8320

RAM:

1.5GB LPDDR3

3GB LPDDR4

Internal storage:

16GB, available to use: 11.6 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

OS:

Android (6.0 Marshmallow, 5.1 Lollipop)

Android (10), Samsung One UI

Battery

Capacity:

3000 mAh

4000 mAh

Type:

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)

16 MP (PDAF)

Specifications:

F1.9; 28 mm

F1.8; 1/3.06"; 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)

Features:

Video calling

Front:

5 MP (Flash)

13 MP

Video capture:

1920x1080 (Full HD)

Design

Dimensions:

6.00 x 3.09 x 0.30 inches (152.4 x 78.6 x 7.5 mm)

6.61 x 3.02 x 0.32 inches (167.8 x 76.7 x 8.1 mm)

Weight:

6.03 oz (171.0 g)

6.81 oz (193.0 g)

Materials:

Back: Plastic; Frame: Plastic

Biometrics:

Fingerprint (touch)

Features:

Touch sensitive control keys

Keys:

Left: Volume control; Right: Lock/Unlock key

Right: Volume control, Lock/Unlock key

Colors:

Black, Gold, White

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, HSPA

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

Dual SIM:

Yes

SIM type:

Micro SIM

Nano SIM

HD Voice:

Yes

Multimedia

Headphones:

3.5mm jack

Speakers:

Earpiece, Loudspeaker

Features:

Album art cover, Background playback

Screen mirroring:

Wireless screen share

Radio:

FM, RDS

FM

Connectivity & Features

Bluetooth:

4.1

5.0

Wi-Fi:

802.11 b, g, n; Hotspot, Wi-Fi Direct

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:

Mass storage device, Charging

Charging

Location:

GPS, A-GPS, Glonass

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

Sensors:

Accelerometer, Hall (for flip covers)

Accelerometer, Gyroscope, Compass

Other:

ANT+

NFC

Hearing aid compatible:

M4, T3

Phone features

Notifications:

Haptic feedback, Music ringtones (MP3), Polyphonic ringtones, Vibration, Flight mode, Silent mode, Speakerphone

Other features:

Voice dialing, Voice commands, Voice recording

Regulatory Approval

FCC approval:

Date approved:

Apr 17, 2020

FCC ID value:

ZCASMA215U link

Measured SAR:

Head:

0.42 W/kg

Body:

1.27 W/kg

Simultaneous Transmission:

1.27 W/kg

Wireless Router:

1.27 W/kg

Buyers information

Price:

$ 234

$ 250

In The Box:

This is the official Samsung Galaxy A21 User Guide in English provided from the manufacturer.

Availability

Officially announced:

Jul 16, 2015

Apr 08, 2020