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Samsung A157 vs Google Pixel 4a vs Google Pixel 3a

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

Comparison mode:

Display

Size:

1.8 inches
5.8 inches
5.6 inches

Resolution:

160 x 128 pixels, 116 PPI
2340 x 1080 pixels, 19.5:9 ratio, 444 PPI
2220 x 1080 pixels, 18.5:9 ratio, 444 PPI

Technology:

TFT
OLED
OLED

Refresh rate:

60Hz

Screen-to-body:

21.69 %
82.53 %
73.93 %

Colors:

262 144

Features:

HDR support, Scratch-resistant glass (Corning Gorilla Glass 3), Ambient light sensor, Proximity sensor
Scratch-resistant glass (Dragontrail), Ambient light sensor, Proximity sensor

Hardware

System chip:

Qualcomm Snapdragon 730G SM7150-AA
Qualcomm Snapdragon 670 SDM670

Processor:

Single core, 416 MHz
Octa-core, 2200 MHz, Kryo 470, 64-bit, 8 nm
Octa-core, 2000 MHz, Kryo 360, 64-bit, 10 nm

GPU:

Adreno 618
Adreno 615

RAM:

6GB LPDDR4
4GB LPDDR4

Internal storage:

0.256GB
128GB (UFS 2.1), not expandable
64GB (eMMC), not expandable

Device type:

Basic phone
Smartphone
Smartphone

OS:

Android (12, 11, 10)
Android (12, 11, 10, 9.0 Pie)

Battery

Capacity:

800 mAh
3140 mAh
3000 mAh

Type:

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

Battery life test results:

Charging:

USB Power Delivery
USB Power Delivery

Max charge speed:

Wired: 18.0W

Camera

Rear:

Single camera
Single camera

Main camera:

12.2 MP (OIS, PDAF)
12.2 MP (OIS, PDAF)

Specifications:

Aperture size: F1.7; Focal length: 27 mm; Sensor size: 1/2.55"; Pixel size: 1.4 μm
Aperture size: F1.8; Focal length: 28 mm; Sensor size: 1/2.55"; Pixel size: 1.4 μm

Video recording:

3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (120 fps), 1280x720 (HD) (240 fps)
3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (120 fps), 1280x720 (HD) (240 fps)

Features:

EIS
EIS

Front:

8 MP
8 MP

Video capture:

1920x1080 (Full HD)
1920x1080 (Full HD)

Design

Dimensions:

3.83 x 1.84 x 0.65 inches (97 x 47 x 17 mm)
5.67 x 2.73 x 0.32 inches (144 x 69.4 x 8.2 mm)
5.96 x 2.76 x 0.32 inches (151.3 x 70.1 x 8.2 mm)

Weight:

2.99 oz (85.0 g)
5.04 oz (143.0 g)
5.19 oz (147.0 g)

Materials:

Back: Plastic; Frame: Plastic
Back: Plastic

Biometrics:

Fingerprint (touch)
Fingerprint (touch)

Keys:

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

Colors:

Just black
Black, Purple, White

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), 14(700 PS), 17(700 b), 18(800 Lower), 20(800 DD), 25(1900+), 26(850+), 28(700 APT), 29(700 d), 30(2300 WCS), 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), 17(700 b), 20(800 DD), 25(1900+), 26(850+), 28(700 APT), 32(1500 L-band), 66(AWS-3)

LTE (TDD):

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

UMTS:

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

Data Speed:

UMTS
LTE-A Cat 11 (600/75 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
LTE-A Cat 11 (600/75 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s

Dual SIM:

Yes

SIM type:

Nano SIM, eSIM
Nano SIM

HD Voice:

Yes

Multimedia

Headphones:

3.5mm jack
3.5mm jack

Speakers:

Earpiece, Multiple speakers
Earpiece, Multiple speakers

Features:

aptX, aptX-HD
aptX-HD

Screen mirroring:

Wireless screen share
Wireless screen share

Additional microphone(s):

for Noise cancellation
for Noise cancellation

Connectivity & Features

Bluetooth:

5.1
5.0

Wi-Fi:

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

USB:

Type-C (reversible), USB 3.1
Type-C (reversible), USB 2.0

Features:

Charging
Charging, Mass storage device

Location:

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

Sensors:

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

Other:

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

Hearing aid compatible:

M4
M3, T4
M3, T3

Phone features

Notifications:

Flight mode, Speakerphone

Other features:

TTY/TDD

Regulatory Approval

FCC approval:

Date approved:

Feb 16, 2012
Jun 25, 2020
Feb 25, 2019

FCC ID value:

A3LSGHA157
A4RG025J
A4RG020G

Measured SAR:

Head:

0.34 W/kg
1.18 W/kg
1.15 W/kg

Body:

0.67 W/kg
1.19 W/kg
1.13 W/kg

Simultaneous Transmission:

1.59 W/kg
1.59 W/kg

Wireless Router:

1.00 W/kg
1.19 W/kg

Buyers information

Price:

$ 349
$ 399

In The Box:

18W USB-C power adapter, 1 m USB-C to USB-C cable (USB 2.0), Quick Start Guide, Quick Switch Adapter, SIM tool
18W USB-C power adapter, 1M USB-C to USB-C cable (USB 2.0), Quick Start Guide, Quick Switch Adapter, SIM tool

Availability

Officially announced:

Aug 03, 2020
May 07, 2019
FCC OKs Cingular\'s purchase of AT&T Wireless