Lenovo Legion 9i (18”, 10) vs Lenovo ThinkBook 15 comparison

Show Only Differences Highlight Differences	Lenovo Legion 9i (18”, 10)	Lenovo ThinkBook 15
key specs
Display size	18.00-inch	15.60-inch
Display resolution	3840x2400 pixels	1920x1080 pixels
Processor	Intel Core Ultra 9	-
RAM	64GB	-
OS	Windows 11 Pro	Windows 10
Hard disk	No	-
SSD	2TB	-
Graphics	Nvidia GeForce RTX 5090	-
Weight	3.50 kg	1.70 kg
general
Brand	Lenovo	Lenovo
Model	Legion 9i (18”, 10)	ThinkBook 15
Release date	May 8, 2025	September 5, 2019
Launched in India	No	-
Model Name	9i	ThinkBook 15
Series	Legion	ThinkBook
Dimensions (mm)	403.00 x 296.50 x 23.90	245.00 x 364.00 x 18.90
Weight (kg)	3.5	1.7
Colours	Carbon Black	Mineral Gray
Material	Aluminium	-
Operating system	Windows 11 Pro	Windows 10
Battery Capacity (WHR)	99.99	45
Battery Life (up to hours)	-	12
display
Size	18.00-inch	15.60-inch
Resolution	3840x2400 pixels	1920x1080 pixels
Refresh Rate	240Hz	-
processor
Processor	Intel Intel Core Ultra 9 275HX	-
memory
RAM	64GB	-
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	-
connectivity
Wi-Fi 7	Yes	-
Bluetooth version	5.4	-
Ethernet	RJ45	-
Wi-Fi standards supported	-	802.11 ac
inputs
Web Camera	5-megapixel	Yes
Pointer Device	Touchpad	Touchpad
Backlit Keyboard	Yes	-
Touchpad	Yes	Yes
Internal Mic	Yes	Yes
Speakers	Yes	2 Speakers
Finger Print Sensor	-	Yes
ports and slots
Thunderbolt 5 (Type C)	2	-
Number of USB Ports	6	5
USB 3.2 Gen 2 (Type C)	1	-
HDMI Port	Yes	Yes
Multi Card Slot	SD Card Reader	4 in 1 Card Reader
Headphone and Mic Combo Jack	Yes	Yes
RJ45 (LAN)	Yes	-
USB Ports	-	1 x USB 2.0, 2 x USB 3.1 Gen 1 (Type A), 1 x USB 3.1 Gen 1 (Type C), 1 x USB 3.1 Gen 2 (Type C)

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