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Zephyrus Duo 16 (2026) vs Asus VivoBook S15 (S531)

Zephyrus Duo 16 (2026) vs Asus VivoBook S15 (S531) comparison

Show Only Differences Highlight Differences	Zephyrus Duo 16 (2026)	Asus VivoBook S15 (S531)
key specs
Display size	16.00-inch	15.60-inch
RAM	64GB	8GB
OS	Windows 11	Windows 10 Home
Graphics	Nvidia GeForce RTX 5090	Integrated Intel HD Graphics 620
Weight	2.85 kg	1.80 kg
Display resolution	-	1920x1080 pixels
Processor	-	Core i5
SSD	-	256GB
general
Brand	Asus	Asus
Model	Zephyrus Duo 16 (2026)	VivoBook S15 (S531)
Release date	January 6, 2026	May 1, 2019
Launched in India	No	-
Model Name	ROG Zephyrus Duo 16 (2026)	S15
Series	ROG Zephyrus	VivoBook
Dimensions (mm)	246.80 x 355.00 x 19.95	230.30 x 357.20 x 180.00
Weight (kg)	2.85	1.8
Operating system	Windows 11	Windows 10 Home
Battery Capacity (WHR)	90	42
Model Number	-	S531
Colours	-	Moss Green, Punk Pink, Cobalt Blue, Transparent Silver, Gun Metal
Material	-	Metal
Battery Cell	-	3
display
Size	16.00-inch	15.60-inch
Refresh Rate	120Hz	-
Resolution	-	1920x1080 pixels
memory
RAM	64GB	8GB
RAM Slots	2	-
graphics
Dedicated Graphics	Yes	No
Graphics Processor	Nvidia GeForce RTX 5090	Integrated Intel HD Graphics 620
connectivity
Wi-Fi 7	Yes	-
Bluetooth version	6	4.2
ports and slots
USB 3.2 Gen 1 (Type A)	2	-
USB 3.2 Gen 2 (Type C)	2	-
HDMI Port	Yes	Standard
Multi Card Slot	1 Micro SD Card Reader	1 Micro SD Card Reader
Headphone and Mic Combo Jack	Yes	Yes
RJ45 (LAN)	Yes	-
Number of USB Ports	-	4
USB Ports	-	2 x USB 2.0, 1 x USB 3.1 Gen 1 (Type A), 1 x USB 3.1 Gen 1 (Type C)
processor
Processor	-	Intel Core i5 8th Gen 8265U
Base Clock Speed	-	1.6 GHz
Burst Clock Speed	-	3.9 GHz
Cache	-	6MB
storage
SSD	-	256GB
inputs
Web Camera	-	Yes
Pointer Device	-	Touchpad
Backlit Keyboard	-	Yes
Touchpad	-	Yes

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