Google Pixel 4a vs Samsung Galaxy M51

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from $350

Display

Size

5.8 inches
6.7 inches

Resolution

2340 x 1080 pixels, 19.5:9 ratio,
444 PPI
2340 x 1080 pixels, 19.5:9 ratio,
385 PPI

Technology

OLED
Super AMOLED

Screen-to-body

82.53 %
88.27 %

Features

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

Hardware

System chip

Qualcomm Snapdragon 730 SM7150-AA
Qualcomm Snapdragon 730 SM7150-AA

Processor

Octa-core, 2200 MHz, Kryo 470, 64-bit, 8 nm
Octa-core, 2200 MHz, Kryo 470, 64-bit, 8 nm

GPU

Adreno 618
Adreno 618

RAM

6GB LPDDR4
6GB LPDDR4

Internal storage

128GB, not expandable
128GB

Storage expansion

 
microSDXC up to 512 GB

Device type

Smartphone
Smartphone

OS

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

Battery

Capacity

3140 mAh
7000 mAh

Type

Li - Polymer, Not user replaceable
Not user replaceable

Battery life test results

 

Charging

USB Power Delivery
Fast charging

Max charge speed

Wired: 18.0W
Wired: 25.0W

Camera

Rear

Single camera
Quad camera

Main camera

12.2 MP (OIS, PDAF)
64 MP (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: 26 mm; Sensor size: 1/1.76"; Pixel size: 0.8 μm

Second camera

 
12 MP (Ultra-wide)

Specifications

 
Aperture size: F2.2

Third camera

 
5 MP (Macro)

Specifications

 
Aperture size: F2.4

Fourth camera

 
5 MP (Depth information)

Specifications

 
Aperture size: F2.4

Video recording

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

Features

EIS
 

Front

8 MP
32 MP (HDR)

Design

Dimensions

5.67 x 2.73 x 0.32 inches (144 x 69.4 x 8.2 mm)
6.45 x 3.00 x 0.37 inches (163.9 x 76.3 x 9.5 mm)

Weight

5.04 oz (143.0 g)
the average is 6.3 oz (179 g)
 

Materials

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

Biometrics

Fingerprint (touch)
Fingerprint (touch)

Keys

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

Colors

Just black
Black, 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)
 

LTE (TDD)

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

UMTS

850, 900, 1700/2100, 1900, 2100 MHz
 

Data Speed

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

Dual SIM

Yes
Yes

SIM type

Nano SIM, eSIM
Nano SIM

Multimedia

Headphones

3.5mm jack
3.5mm jack

Speakers

Earpiece, Multiple speakers
Earpiece, Loudspeaker

Features

aptX, aptX-HD
 

Screen mirroring

Wireless screen share
Wireless screen share

Radio

 
FM

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; Wi-Fi Direct, Hotspot

USB

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

Features

Charging
Charging

Location

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

Sensors

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

Other

NFC
NFC

Hearing aid compatible

M3, T4
 

Regulatory Approval

FCC approval

 
 

Date approved

Jun 25, 2020
 

FCC ID value: A4RG025J link
 

Measured SAR

 
 

Head

1.18 W/kg
 

Body

1.19 W/kg
 

Simultaneous Transmission

1.59 W/kg
 

Wireless Router

1.00 W/kg
 

Buyers information

Price

$ 349
€ 360

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
 

Availability

Officially announced

Aug 03, 2020
Aug 31, 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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