Display
Size:
6.6 inches
6.5 inches
Resolution:
1600 x 720 pixels, 20:9 ratio, 266 PPI
2400 x 1080 pixels, 20:9 ratio, 405 PPI
Technology:
Super AMOLED
Super AMOLED
Refresh rate:
60Hz
60Hz
Screen-to-body:
84.26 %
87.37 %
Features:
Ambient light sensor, Proximity sensor
Scratch-resistant glass (Corning Gorilla Glass 3), Ambient light sensor, Proximity sensor
Hardware
System chip:
Qualcomm Snapdragon 750G SM7225
Samsung Exynos 9611
Processor:
Octa-core, 2200 MHz, Kryo 570, 64-bit, 8 nm
Octa-core, 2300 MHz, ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 10 nm
GPU:
Adreno 619
Mali-G72 MP3
RAM:
4GB LPDDR4
4GB LPDDR4
Internal storage:
128GB, available to use: 106 GB
128GB, available to use: 105.9 GB
Storage expansion:
microSDXC up to 1000 GB
microSDXC up to 512 GB
Device type:
Smartphone
Smartphone
OS:
Android (11, 10), Samsung One UI
Android (11, 10), Samsung One UI
Battery
Capacity:
5000 mAh
4000 mAh
Type:
Not user replaceable
Li - Polymer, Not user replaceable
Charging:
Samsung Adaptive Fast Charging
Fast charging
Max charge speed:
Wired: 15.0W
Camera
Rear:
Quad camera
Quad camera
Main camera:
48 MP (PDAF)
48 MP (PDAF)
Specifications:
Aperture size: F1.8; Pixel size: 0.8 μm
Aperture size: F2.0; Focal length: 26 mm; Sensor size: 1/2"; Pixel size: 0.8 μm
Second camera:
8 MP (Ultra-wide)
12 MP (Ultra-wide)
Specifications:
Aperture size: F2.2
Aperture size: F2.2; Focal Length: 13 mm; Pixel size: 1.12 μm
Third camera:
5 MP (Macro)
5 MP (Macro)
Specifications:
Aperture size: F2.4
Aperture size: F2.4; Focal Length: 40 mm
Fourth camera:
5 MP (Depth information)
5 MP (Depth information)
Specifications:
Aperture size: F2.4
Aperture size: F2.2; Sensor size: 1/5"; Pixel size: 1.12 μm
Video recording:
3840x2160 (4K UHD) (30 fps), 1280x720 (HD) (480 fps)
3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (120 fps), 1280x720 (HD) (240 fps)
Features:
Hyperlapse, EIS
Front:
20 MP (Autofocus)
32 MP (HDR)
Video capture:
1920x1080 (Full HD)
Design
Dimensions:
6.47 x 2.99 x 0.34 inches (164.4 x 75.9 x 8.6 mm)
6.24 x 2.90 x 0.31 inches (158.5 x 73.6 x 7.9 mm)
Weight:
6.81 oz (193.0 g)
6.07 oz (172.0 g)
Materials:
Back: Plastic; Frame: Plastic
Biometrics:
In-screen fingerprint
2D Face unlock, In-screen fingerprint
Keys:
Right: Volume control, Lock/Unlock key
Right: Volume control, Lock/Unlock key
Colors:
Prism Dot black, Prism Dot white, Prism Dot grey
Prism Crush black, Prism Crush white, Prism Crush pink, Prism Crush blue
Cellular
5G:
n1, n3, n5, n7, n8, n28, Sub-6
LTE (FDD):
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), 28(700 APT)
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), 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), 40(2300), 41(2600+)
Bands 38(2600), 39(1900+), 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)
Data Speed:
LTE-A, 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:
Shared with microSD
SIM type:
Nano SIM
Nano SIM
Multimedia
Headphones:
3.5mm jack
3.5mm jack
Speakers:
Earpiece, Loudspeaker
Earpiece, Loudspeaker
Features:
Dolby Atmos
Screen mirroring:
Wireless screen share
Wireless screen share
Radio:
FM
Additional microphone(s):
for Noise cancellation
Connectivity & Features
Bluetooth:
5.0
5.0
Wi-Fi:
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 2.0
Type-C (reversible), USB 2.0
Features:
Charging
Charging, OTG
Location:
GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning
GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning
Sensors:
Accelerometer, Gyroscope, Compass
Accelerometer, Gyroscope, Compass, Hall (for flip covers)
Other:
NFC
NFC, ANT+
Regulatory Approval
FCC approval:
Date approved:
Apr 08, 2021
Nov 28, 2019
FCC ID value:
A3LSMA426U
A3LSMA515FN
Measured SAR:
Head:
1.11 W/kg
0.89 W/kg
Body:
1.25 W/kg
1.18 W/kg
Simultaneous Transmission:
1.59 W/kg
1.56 W/kg
Wireless Router:
1.06 W/kg
1.12 W/kg
Phablet:
3.81 W/kg
2.76 W/kg
Buyers information
Price:
€ 340
$ 400
User Manual:
This is the official Samsung Galaxy A42 User Guide in English provided from the manufacturer.
This is the official Samsung Galaxy A51 User Guide in English provided from the manufacturer.
Availability
Officially announced:
Sep 02, 2020
Dec 12, 2019
FCC OKs Cingular\'s purchase of AT&T Wireless