Lenovo Legion 9i (18”, 10) vs Lenovo Yoga Duet 2021 comparison

Show Only Differences Highlight Differences	Lenovo Legion 9i (18”, 10)	Lenovo Yoga Duet 2021
key specs
Display size	18.00-inch	13.00-inch
Display resolution	3840x2400 pixels	2160x1350 pixels
Processor	Intel Core Ultra 9	Core i5
RAM	64GB	16GB
OS	Windows 11 Pro	-
Hard disk	No	-
SSD	2TB	512GB
Graphics	Nvidia GeForce RTX 5090	-
Weight	3.50 kg	799.00 kg
Touchscreen	-	Yes
general
Brand	Lenovo	Lenovo
Model	Legion 9i (18”, 10)	Yoga Duet 2021
Release date	May 8, 2025	April 23, 2021
Launched in India	No	-
Model Name	9i	Yoga Duet 2021
Series	Legion	Yoga
Dimensions (mm)	403.00 x 296.50 x 23.90	-
Weight (kg)	3.5	799
Colours	Carbon Black	Space Grey
Material	Aluminium	-
Operating system	Windows 11 Pro	-
Battery Capacity (WHR)	99.99	-
Thickness	-	9.19
display
Size	18.00-inch	13.00-inch
Resolution	3840x2400 pixels	2160x1350 pixels
Refresh Rate	240Hz	-
Touch Screen	-	Yes
processor
Processor	Intel Intel Core Ultra 9 275HX	Intel Core i5 11th Gen i5-1135G7
memory
RAM	64GB	16GB
RAM Slots	4	-
graphics
Dedicated Graphics	Yes	-
Graphics Processor	Nvidia GeForce RTX 5090	-
Dedicated Graphic Memory	24GB	-
Dedicated Graphic Memory Type	GDDR7	-
storage
Hard disk	No	-
SSD	2TB	512GB
connectivity
Wi-Fi 7	Yes	-
Bluetooth version	5.4	-
Ethernet	RJ45	-
Wi-Fi standards supported	-	802.11 ax
inputs
Web Camera	5-megapixel	-
Pointer Device	Touchpad	-
Backlit Keyboard	Yes	-
Touchpad	Yes	-
Internal Mic	Yes	-
Speakers	Yes	-
ports and slots
Thunderbolt 5 (Type C)	2	-
Number of USB Ports	6	3
USB 3.2 Gen 2 (Type C)	1	-
HDMI Port	Yes	-
Multi Card Slot	SD Card Reader	-
Headphone and Mic Combo Jack	Yes	Yes
RJ45 (LAN)	Yes	-
USB Ports	-	2 x USB 3.0 (Type C)
Thunderbolt 4 (Type C)	-	1

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