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Samsung GALAXY Ace 2 vs Samsung Galaxy S III Sprint vs Samsung Galaxy A21

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

Comparison mode:

Display

Size:

3.8 inches
4.8 inches
6.5 inches

Resolution:

800 x 480 pixels, 246 PPI
1280 x 720 pixels, 306 PPI
1600 x 720 pixels, 20:9 ratio, 270 PPI

Technology:

Super PLS LCD
Super AMOLED
IPS LCD

Refresh rate:

60Hz

Screen-to-body:

55.80 %
65.82 %
79.20 %

Colors:

16 777 216

Touchscreen:

Capacitive, Multi-touch
Capacitive, Multi-touch

Features:

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

Hardware

System chip:

Qualcomm Snapdragon S4 Plus MSM8960
Mediatek Helio P35

Processor:

Dual-core, 800 MHz
Dual-core, 1500 MHz, Krait
Octa-core, 2300 MHz, Arm Cortex-A53, 64-bit, 12 nm

GPU:

Yes
Adreno 225
PowerVR GE8320

RAM:

0.75GB
2GB DDR2
3GB LPDDR4

Internal storage:

4GB
32GB
32GB (eMMC 5.1), available to use: 19.8 GB

Storage expansion:

microSDHC up to 32 GB
microSDXC up to 64 GB
microSDXC up to 512 GB

Device type:

Smartphone
Smartphone
Smartphone

OS:

Android (4.1.2, 2.3.6), Samsung TouchWiz UI
Android (4.4.2, 4.3, 4.1, 4.0.4), Samsung TouchWiz UI
Android (10), Samsung One UI

Battery

Capacity:

1500 mAh
2100 mAh
4000 mAh

Type:

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

Charging:

Fast charging

Max charge speed:

Wired: 15.0W

Camera

Rear:

Single camera
Single camera
Quad camera

Main camera:

5 MP (Autofocus)
8 MP (Autofocus, CMOS image sensor, BSI sensor)
16 MP (PDAF)

Specifications:

Aperture size: F2.8
Aperture size: F2.6; Sensor size: 1/3"
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:

1280x720 (HD) (30 fps)
1920x1080 (Full HD) (30 fps)
1920x1080 (Full HD) (30 fps)

Features:

Video sharing
EIS, Video calling

Front:

0.3 MP VGA
1.9 MP
13 MP

Video capture:

1920x1080 (Full HD)

Design

Dimensions:

4.66 x 2.45 x 0.41 inches (118.3 x 62.2 x 10.5 mm)
5.38 x 2.78 x 0.34 inches (136.6 x 70.6 x 8.6 mm)
6.61 x 3.02 x 0.32 inches (167.8 x 76.7 x 8.1 mm)

Weight:

4.30 oz (122.0 g)
4.70 oz (133.0 g)
6.81 oz (193.0 g)

Materials:

Back: Plastic
Back: Plastic; Frame: Plastic

Biometrics:

Fingerprint (touch)

Features:

Notification light

Keys:

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

Colors:

Blue, White
Black

Cellular

LTE (FDD):

Bands 2(1900)
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 38(2600), 39(1900+), 40(2300), 41(2600+)

UMTS:

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

Data Speed:

HSDPA 14.4 Mbit/s, UMTS
LTE
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
3.5mm jack

Speakers:

Earpiece, Loudspeaker
Earpiece, Loudspeaker
Earpiece, Loudspeaker

Features:

Album art cover, Background playback
Album art cover, Background playback, Custom equalizer, Preset equalizer

Screen mirroring:

DLNA
DLNA, MHL
Wireless screen share

Radio:

FM, Stereo, RDS
FM

Additional microphone(s):

Yes

Connectivity & Features

Bluetooth:

3.0
4.0
5.0

Wi-Fi:

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

USB:

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

Features:

Mass storage device, Charging
OTG, Charging, Video out
Charging

HDMI:

Yes

Location:

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

Sensors:

Accelerometer, Compass
Accelerometer, Gyroscope, Compass, Barometer
Accelerometer, Gyroscope, Compass

Other:

NFC, Computer sync, OTA sync
NFC, Tethering, Computer sync, OTA sync
NFC

Hearing aid compatible:

M4
M4, T3

Phone features

Notifications:

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

Other features:

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

Regulatory Approval

FCC approval:

Date approved:

Apr 11, 2012
Jun 01, 2012
Apr 17, 2020

FCC ID value:

A3LGTI8160
A3LSPHL710
ZCASMA215U

Measured SAR:

Head:

0.33 W/kg
0.42 W/kg
0.42 W/kg

Body:

0.59 W/kg
1.10 W/kg
1.27 W/kg

Simultaneous Transmission:

0.76 W/kg
1.44 W/kg
1.27 W/kg

Wireless Router:

0.62 W/kg
1.10 W/kg
1.27 W/kg

Buyers information

Price:

$ 250

In The Box:

This is the official Samsu​ng Galaxy A21 User Guide in English provided from the manufacturer.

Availability

Officially announced:

Feb 21, 2012
Jun 04, 2012
Apr 08, 2020
FCC OKs Cingular\'s purchase of AT&T Wireless