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www.phonearena.com

Google Pixel 4a vs Xiaomi Redmi Note 8 2021 vs Samsung Galaxy A52

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

Comparison mode:

Display

Size:

5.8 inches
6.3 inches
6.5 inches

Resolution:

2340 x 1080 pixels, 19.5:9 ratio, 444 PPI
2340 x 1080 pixels, 19.5:9 ratio, 409 PPI
2400 x 1080 pixels, 20:9 ratio, 405 PPI

Technology:

OLED
IPS LCD
Super AMOLED

Refresh rate:

60Hz
60Hz
90Hz

Screen-to-body:

82.53 %
81.89 %
84.79 %

Features:

HDR support, Scratch-resistant glass (Corning Gorilla Glass 3), Ambient light sensor, Proximity sensor
Scratch-resistant glass (Corning Gorilla Glass 5), Ambient light sensor, Proximity sensor
Ambient light sensor, Proximity sensor

Hardware

System chip:

Qualcomm Snapdragon 730G SM7150-AA (8 nm)
MediaTek Helio G85 MT6769Z (12 nm)
Qualcomm Snapdragon 720G SM7125 (8 nm)

Processor:

Octa-core, 2200 MHz, Kryo 470, 64-bit
Octa-core, 2000 MHz, Cortex-A75, 64-bit
Octa-core, 2x 2.3GHz Kryo 465 + 6x 1.8GHz Kryo 465, 64-bit

GPU:

Adreno 618
Mali G52 MC2
Adreno 618

RAM:

6GB LPDDR4
4GB LPDDR4
6GB LPDDR4

Internal storage:

128GB (UFS 2.1), not expandable
64GB (eMMC 5.1)
128GB

Storage expansion:

microSDXC up to 128 GB
microSDXC up to 1024 GB

Device type:

Smartphone
Smartphone
Smartphone

OS:

Android (12, 11, 10)
Android (11), MIUI 12.5 UI
Android (11), Samsung One UI

Battery

Capacity:

3140 mAh
4000 mAh
4500 mAh

Type:

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

Battery life test results:

Charging:

USB Power Delivery
Fast charging
Qualcomm Quick Charge 2.0

Max charge speed:

Wired: 18.0W
Wired: 18.0W
Wired: 25.0W

Camera

Rear:

Single camera
Quad camera
Quad camera

Main camera:

12.2 MP (OIS, PDAF)
48 MP (Autofocus)
64 MP (OIS, Autofocus)

Specifications:

Aperture size: F1.7; Focal length: 27 mm; Sensor size: 1/2.55"; Pixel size: 1.4 μm
Aperture size: F1.8; Sensor size: 1/2"; Pixel size: 0.8 μm
Aperture size: F1.8; Focal length: 26 mm; Sensor size: 1/1.7"; Pixel size: 0.8 μm

Second camera:

8 MP (Ultra-wide)
12 MP (Ultra-wide)

Specifications:

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

Third camera:

2 MP (Macro, Autofocus)
5 MP (Macro)

Specifications:

Aperture size: F2.4; Pixel size: 1.75 μm
Aperture size: F2.4; Pixel size: 1.12 μm

Fourth camera:

2 MP (Depth information)
5 MP (Depth information)

Specifications:

Aperture size: F2.4; Pixel size: 1.75 μm
Aperture size: F2.4; Pixel size: 1.12 μm

Video recording:

3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (120 fps), 1280x720 (HD) (240 fps)
1920x1080 (Full HD) (30 fps), 1280x720 (HD) (120 fps)
3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (60 fps)

Features:

EIS
Continuous autofocus, Picture-taking during video recording

Front:

8 MP
13 MP
32 MP

Video capture:

1920x1080 (Full HD)
1920x1080 (Full HD)
3840x2160 (4K UHD) (30 fps)

Design

Dimensions:

5.67 x 2.73 x 0.32 inches (144 x 69.4 x 8.2 mm)
6.23 x 2.96 x 0.33 inches (158.3 x 75.3 x 8.35 mm)
6.30 x 2.96 x 0.33 inches (159.9 x 75.1 x 8.4 mm)

Weight:

5.04 oz (143.0 g)
6.70 oz (190.0 g)
6.67 oz (189.0 g)

Materials:

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

Resistance:

Water, Dust; IP67

Biometrics:

Fingerprint (touch)
Fingerprint (touch)
2D Face unlock, In-screen fingerprint

Keys:

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

Colors:

Just black
Neptune Blue, Moonlight White, Space Black,

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), 20(800 DD), 28(700 APT)
Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 17(700 b), 20(800 DD), 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)
Bands 38(2600), 40(2300), 41(2600+)

UMTS:

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

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, HSPA
LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s, UMTS

Dual SIM:

Yes
Shared with microSD
Shared with microSD

SIM type:

Nano SIM, eSIM
Nano SIM
Nano SIM

HD Voice:

Yes

VoLTE:

Yes

Multimedia

Headphones:

3.5mm jack
3.5mm jack
3.5mm jack

Speakers:

Earpiece, Multiple speakers
Earpiece, Loudspeaker
Earpiece, Loudspeaker

Features:

aptX, aptX-HD
Dolby Atmos

Screen mirroring:

Wireless screen share
Wireless screen share
Wireless screen share

Additional microphone(s):

for Noise cancellation
for Noise cancellation
for Noise cancellation

Connectivity & Features

Bluetooth:

5.1
5.2
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
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
Type-C (reversible), USB 2.0

Features:

Charging
Charging, OTG
Charging, Headphones port, OTG

Location:

GPS, A-GPS, Glonass, Galileo, Cell ID, Wi-Fi positioning
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
Accelerometer, Gyroscope, Compass, Hall (for flip covers)

Other:

NFC
Infrared
NFC

Hearing aid compatible:

M3, T4
M3, T3

Regulatory Approval

FCC approval:

Date approved:

Jun 25, 2020

FCC ID value:

A4RG025J

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
€ 429

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
Adapter, USB Type-C cable, SIM Eject Tool, Protective Case, Quick Start Guide, Warranty Card

Availability

Officially announced:

Aug 03, 2020
May 24, 2021
Mar 17, 2021
FCC OKs Cingular\'s purchase of AT&T Wireless