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IBM ThinkPad T21

alaTest has collected and analyzed 6 reviews of IBM ThinkPad T21. The average rating for this product is 4.0/5, compared to an average rating of 4.1/5 for other Laptops for all reviews. Reviews about the keyboard and durability are overall positive. The design and portability are also mentioned favorably.

price, portability, design, durability, keyboard

On average, users rate this product 80/100.

Review analysis

(Based on 6 reviews)

1 expert reviews

User Reviews  

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Consumer review ( review summary for IBM ThinkPad T21


alaTest has collected and analyzed 2 user reviews of IBM ThinkPad T21 from The average user rating for this product is 5.0/5, compared to an average user rating of 3.9/5 for other Laptops on People are impressed by the durability. The keyboard also gets good feedback.

keyboard, durability

100% of the reviews on give this product a positive rating.

This summary is based on the products: IBM 26474AU ThinkPad T21 Notebook PC - [Refurbished]IBM 26474AU ThinkPad T21 Notebook PC - [Refurbished]

May, 2018

Expert review by : Carla Thornton (

IBM ThinkPad T21 2647-57U


Follow-on to lightweight ThinkPad T20 boasts higher screen resolution and souped-up UltraBay options.

Although the 5.3-pound Apple PowerBook G4 now claims the prize for more display area per laptop pound with a whopping 15.2-inch screen, the T notebooks from IBM still rule the Windows world. For companies and luxury-loving individuals who can afford a...

Mar, 2001

Consumer review (




Very poor on all points

Feb, 2004

Product Specifications

Protected by Titanium Composite covers, ThinkPad T Series notebooks are the lightest high performance mobile computers. These trim and light notebooks are powered by a blazing Intel processor, and a long-lasting battery, making them an ideal mobile computing solution for frequent travelers. Your fingers will never be tired as they lay down comfortably on the keyboard while you manipulate and access your software easily with the TrackPoint. The ThinkPad T series is optimized for connectivity and you stay on-line all the time. Whether you are on your way to a sales call across town or a business meeting across the continent, the ThinkPad T Series notebooks deliver a better experience. This notebook comes with a carrying case.

Audio Input


Audio Output

Type:Sound card


Run Time (Up To):3.5hour(s)/3.7hour(s)
Technology:Lithium ion

Cache Memory

Installed Size:256KB

Dimensions & Weight


Display (Projector)

Color Support:24-bit (16.7 million colors)
Color Support:24-bit (16.7 million colors)
Diagonal Size:14.1in
Diagonal Size (metric):35.8cm
Max Resolution:1024 x 768
Technology:TFT active matrix
Widescreen Display: No


Country Kits:Canada/United Kingdom/United States/Worldwide
Packaged Quantity:1
Product Line:ThinkPad T21

Input Device

Type:Keyboard / TrackPoint


Data Bus Speed:100MHz




Max Transfer Rate:56Kbps
Protocols & Specifications:Bell 103 / Bell 212A / ITU V.17 / ITU V.21 / ITU V.22 / ITU V.22bis / ITU V.23 / ITU V.27ter / ITU V.29 / ITU V.32 / ITU V.32bis / ITU V.33 / ITU V.34 / ITU V.34bis / ITU V.90/ITU V.90
Type:Fax / modem/Network / modem combo/None


Data Link Protocol:Ethernet / Fast Ethernet
Type:Network adapter/None

Optical Storage

Read Speed:8x

OS Provided

Type:Microsoft Windows 2000 Professional/Microsoft Windows 98/Microsoft Windows 98 Second Edition


Clock Speed:750MHz/800MHz
Type:Pentium III


Installed Size:128MB/192MB
Max Supported Size:512MB

Service & Support

Type:3 years warranty

Storage Controller


Storage Floppy Drive

Type:3.5" 1.44 MB floppy / 3.5 1.44 MB floppy

Storage Hard Drive


Storage Removable

Type: None


Hard Drive(-s) Total Capacity:10GB/20GB
Notebook Type:Notebook
Recommended Use:Corporate business / Small business

Video Memory

Installed Size:8MB

Video Output

Graphics Processor / Vendor:S3 Savage/IX