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Palm Pre GSM vs Samsung Galaxy A21 vs Samsung Galaxy A02s

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

Comparison mode:

Display

Size:

3.1 inches
6.5 inches
6.5 inches

Resolution:

480 x 320 pixels, 186 PPI
1600 x 720 pixels, 20:9 ratio, 270 PPI
1600 x 720 pixels, 20:9 ratio, 270 PPI

Technology:

TFT
IPS LCD
IPS LCD

Refresh rate:

60Hz

Screen-to-body:

47.87 %
79.20 %
81.80 %

Colors:

16 777 216

Touchscreen:

Capacitive, Multi-touch

Features:

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

Hardware

System chip:

Mediatek Helio P35 MT6765 (12 nm)
Qualcomm Snapdragon 450 SDM450 (14 nm)

Processor:

Single core, ARM Cortex-A8
Octa-core, 4x 2.3GHz Cortex-A53 + 4x 1.8GHz Cortex-A53, 64-bit
Octa-core, 8x 1.8GHz Cortex-A53, 64-bit

GPU:

PowerVR GE8320
Adreno 506

RAM:

3GB LPDDR4
3GB

Internal storage:

8GB
32GB (eMMC 5.1), available to use: 19.8 GB
32GB (eMMC 5.1), available to use: 20.5 GB

Storage expansion:

microSDXC up to 512 GB
microSDXC up to 1024 GB

Device type:

Smartphone
Smartphone
Smartphone

OS:

webOS
Android (10), Samsung One UI
Android (11, 10)

Battery

Capacity:

1150 mAh
4000 mAh
5000 mAh

Type:

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

Charging:

Fast charging
Samsung Adaptive Fast Charging

Max charge speed:

Wired: 15.0W
Wired: 15.0W

Camera

Rear:

Single camera
Quad camera
Triple camera

Main camera:

3 MP
16 MP (PDAF)
13 MP (Autofocus)

Specifications:

Aperture size: F1.8; Sensor size: 1/3.06"; Pixel size: 1 μm
Aperture size: F2.2

Second camera:

8 MP (Ultra-wide)
2 MP (Macro)

Specifications:

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

Third camera:

2 MP (Macro)
2 MP (Depth information)

Specifications:

Aperture size: F2.4
Aperture size: F2.4

Fourth camera:

2 MP (Depth information)

Specifications:

Aperture size: F2.4

Video recording:

Yes
1920x1080 (Full HD) (30 fps)
1920x1080 (Full HD) (30 fps)

Front:

13 MP
5 MP

Video capture:

1920x1080 (Full HD)

Design

Dimensions:

3.96 x 2.34 x 0.67 inches (100.5 x 59.5 x 16.9 mm)
6.61 x 3.02 x 0.32 inches (167.8 x 76.7 x 8.1 mm)
6.46 x 2.99 x 0.36 inches (164.2 x 75.9 x 9.1 mm)

Weight:

4.76 oz (135.0 g)
6.81 oz (193.0 g)
6.91 oz (196.0 g)

Materials:

Back: Plastic; Frame: Plastic
Back: Plastic; Frame: Plastic

Biometrics:

Fingerprint (touch)

Features:

Full keyboard

Keys:

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

Colors:

Black
Black, White, Blue

Cellular

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), 3(1800), 5(850), 7(2600), 8(900), 20(800 DD), 28(700 APT)

LTE (TDD):

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

UMTS:

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

Data Speed:

UMTS, HSDPA 3.6 Mbit/s
LTE-A Cat 6 (300/50 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
LTE Cat 4 (150/50 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s

Dual SIM:

Yes

SIM type:

Nano SIM
Nano SIM

HD Voice:

Yes

Multimedia

Headphones:

3.5mm jack
3.5mm jack
3.5mm jack

Speakers:

Earpiece, Loudspeaker
Earpiece, Loudspeaker

Screen mirroring:

Wireless screen share
Wireless screen share

Radio:

FM

Additional microphone(s):

for Noise cancellation

Connectivity & Features

Bluetooth:

2.1, EDR
5.0
4.2

Wi-Fi:

802.11 b, g
802.11 a, b, g, n, ac, dual-band; Wi-Fi Direct, Hotspot
802.11 b, g, n, 802.1x; Wi-Fi Direct, Hotspot

USB:

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

Features:

Charging
Charging, Mass storage device

Location:

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

Sensors:

Accelerometer
Accelerometer, Gyroscope, Compass
Accelerometer

Other:

Computer sync, OTA sync
NFC

Hearing aid compatible:

M4, T3

Phone features

Notifications:

Music ringtones (MP3), Vibration, Phone profiles, Speakerphone

Other features:

Voice recording

Regulatory Approval

FCC approval:

Date approved:

Apr 17, 2020
Feb 07, 2021

FCC ID value:

ZCASMA215U
ZCASMA025U

Measured SAR:

Head:

0.42 W/kg
1.00 W/kg

Body:

1.27 W/kg
0.85 W/kg

Simultaneous Transmission:

1.27 W/kg
1.40 W/kg

Wireless Router:

1.27 W/kg
0.85 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.
Power brick, USB Cable, Headphones, Sim Card extractor tool

Availability

Officially announced:

Apr 08, 2020
FCC OKs Cingular\'s purchase of AT&T Wireless