Samsung Galaxy A90 5G vs Samsung Galaxy A51
Display
Size
Resolution
Technology
Super AMOLED
Super AMOLED
Screen-to-body
85.99 %
87.37 %
Features
Ambient light sensor, Proximity sensor
Scratch-resistant glass (Corning Gorilla Glass 3), Ambient light sensor, Proximity sensor
Hardware & Performance
System chip
Qualcomm Snapdragon 855 SM8150
Samsung Exynos 9611
Processor
GPU
Adreno 640
Mali-G72 MP3
RAM
Internal storage
128GB
128GB
Available to use
106.4 GB
107 GB
Storage expansion
microSDXC up to 512 GB
microSDXC up to 512 GB
Device type
Smart phone
Smart phone
OS
Android
Android (10), Samsung One UI
Battery
Capacity
4500 mAh
4000 mAh
Type
Li - Polymer, Not user replaceable
Li - Polymer, Not user replaceable
Charging
Samsung Adaptive Fast Charging
Fast charging
Talk time (4G)
54 hours
32 hours
Internet use
LTE: 16 hours; Wi-Fi: 17 hours
LTE: 15 hours; Wi-Fi: 16 hours
Music playback
101.00 hours
87.00 hours
Video playback
25.00 hours
20.00 hours
Camera
Rear
Triple camera
Quad camera
Main camera
Features
PDAF
PDAF
Specifications
Aperture size: F2.0; Focal length: 26 mm; Sensor size: 1/2"; 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
12 MP
Features
Ultra-wide
Ultra-wide
Specifications
Aperture size: F2.2; Pixel size: 1.12 μm
Aperture size: F2.2; Focal Length: 13 mm; Pixel size: 1.12 μm
Third camera
5 MP
5 MP
Features
Depth information
Macro
Specifications
Aperture size: F2.2
Aperture size: F2.4; Focal Length: 40 mm
Fourth camera
5 MP
Features
Depth information
Specifications
Aperture size: F2.2; Sensor size: 1/5"; Pixel size: 1.12 μm
Flash
LED
LED
Software Features
HDR, Panorama, Face detection, Scenes, Exposure compensation, ISO control, White balance presets, Touch to focus, Digital zoom, Geo tagging
HDR, Panorama, Night mode, Scenes, Exposure compensation, ISO control, White balance presets, Touch to focus, Digital zoom, Geo tagging
Video recording
3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (60 fps), 1280x720 (HD) (960 fps)
3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (120 fps), 1280x720 (HD) (240 fps)
Features
Time-lapse video, EIS
Hyperlapse, EIS
Front
32 MP
32 MP
Features
HDR
HDR
Video capture
1920x1080 (Full HD) (30 fps)
1920x1080 (Full HD) (30 fps)
Design
Form factor
Candybar
Candybar
Dimensions
Weight
the average is 6.2 oz (179 g)
the average is 6.2 oz (179 g)
Materials
Back: Glass
Back: Plastic; Frame: Plastic
Biometrics
2D Face unlock, In-screen fingerprint
2D Face unlock, In-screen fingerprint
Keys
Right: Volume control, Lock/Unlock key
Right: Volume control, Lock/Unlock key
Colors
Black, White
Prism Crush black, Prism Crush white, Prism Crush pink, Prism Crush blue
Cellular
5G
n78, Sub-6
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), 26(850+), 28(700 APT), 66(AWS-3)
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), 26(850+), 28(700 APT), 66(AWS-3)
LTE (TDD)
Bands 38(2600), 40(2300), 41(2600+)
Bands 38(2600), 40(2300), 41(2600+)
UMTS
850, 900, 1700/2100, 1900, 2100 MHz
850, 900, 1700/2100, 1900, 2100 MHz
GSM
850, 900, 1800, 1900 MHz
850, 900, 1800, 1900 MHz
Data Speed
2G Data
EDGE, GPRS
EDGE, GPRS
Dual SIM
Yes
SIM type
Nano SIM
Nano SIM
Global Roaming
Yes
Yes
Multimedia
Headphones
No 3.5mm jack
3.5mm jack
Speakers
Earpiece, Loudspeaker
Earpiece, Loudspeaker
Features
Dolby Atmos
Dolby Atmos
Screen mirroring
Wireless screen share
Wireless screen share
Radio
FM
Additional microphone(s)
for Noise cancellation
for Noise cancellation
Connectivity & Features
Bluetooth
5.0
5.0
Profiles/ Protocols
Advanced Audio Distribution (A2DP), Audio/Visual Remote Control Profile (AVRCP), Generic Access (GAP), Handsfree (HFP), Headset (HSP), Message Access Profile (MAP), Object Push (OPP), Phone Book Access (PBAP)
Advanced Audio Distribution (A2DP), Audio/Visual Remote Control Profile (AVRCP), Generic Access (GAP), Handsfree (HFP), Headset (HSP), Message Access Profile (MAP), Object Push (OPP), Phone Book Access (PBAP)
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, Headphones port
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, Hall (for flip covers)
Accelerometer, Gyroscope, Compass, Hall (for flip covers)
Other
ANT+
NFC, ANT+
Regulatory Approval
Measured SAR
Head
0.89 W/kg
Body
1.18 W/kg
Simultaneous Transmission
1.56 W/kg
Wireless Router
1.12 W/kg
Phablet
2.76 W/kg
Availability
Officially announced
Dec 12, 2019
