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Lenovo Thinkpad T420S

alaTest has collected and analyzed 120 reviews of Lenovo Thinkpad T420S. The average rating for this product is 4.2/5, compared to an average rating of 4.0/5 for other products in the same category for all reviews. Reviewers are impressed by the durability and portability. The keyboard and battery also get good feedback, whereas many are critical about the price. The size and design get mixed comments.

performance, battery, keyboard, portability, durability


We analyzed user and expert ratings, product age and more factors. Compared to other products in the same category the Lenovo Thinkpad T420S is awarded an overall alaScore™ of 84/100 = Very good quality.

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Review analysis

(Based on 120 reviews)

Expert Reviews  

User Reviews  

Showing 107 review(s)

Expert Reviews User Reviews


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Showing 1 - 10 of 107 Show Reviews: in English | in other languages (5)

Expert review by : Scott Stein (

Lenovo ThinkPad T420 review: Lenovo ThinkPad T420


The ThinkPad T420 has several things going for it: performance, plenty of ports, excellent battery life, and a very comfortable keyboard.

The design of the bulky, business-oriented T420 is positively Stone Age. It's also priced well above similar consumer laptops. No HDMI, no USB 3.0.

The Lenovo ThinkPad T420 is as straight-up and unassuming as a business laptop can be on the surface, souped up with faster performance, long battery life, and a flexible selection of ports under the hood.

Feb, 2012

Editor's Choice

Expert review by : Cisco Cheng (

Lenovo ThinkPad T420s


The Lenovo ThinkPad T420s is hands down the lightest and most well-equipped 14-inch business laptop on the market.

One of the lightest 14-inch business laptops. 1-inch thick with optical drive. Optical drive can be substituted with an additional battery. High screen resolution. Tough as nails. Phenomenal typing experience. Excellent battery life. Speedy.

A backlit-keyboard would be nice.

More laptop reviews: • Dell Latitude 7280• Samsung Galaxy Book (12-Inch, LTE)• Dell Latitude 5285 2-in-1• LG gram 14 (2017)• Lenovo ThinkPad X270• more

Aug, 2011

Editor's Choice!

Expert review by (

Lenovo Thinkpad T420s


The full size keyboard is what keeps Lenovo customers coming back year after year. It's a traditional-looking keyboard and arguably the best one in the business, despite so many other laptops moving to a chiclet-style keyboard. Dual pointing devices...

One of the lightest 14-inch business laptops. 1-inch thick with optical drive. Optical drive can be substituted with an additional battery. High screen resolution. Tough as nails. Phenomenal typing experience. Excellent battery life. Speedy

A backlit-keyboard would be nice

The Lenovo ThinkPad T420s is an amazing device when you realize that its power, feature set, and battery yields are usually found in much heavier laptops.

Expert review by (

Review Lenovo ThinkPad T420s 4174-PEG Notebook


Business class. The ThinkPad T420s is mainly to convince business customers of its advantages as a powerful and yet portable companion. Equipped with a Core i7-2640M and a fast SSD from Intel as well as built-in UMTS, Lenovo has created good...

Good manufacturing quality and case stability, Great connectivity, High-end inputs, Matt screen surface, SSD, Optimus support, Fast, light, perfectly equipped - that's how we like the business sector

Contrast weak screen with high viewing angle dependency, Very high temperature in full load, High price, Dear Lenovo, a fine-tuning of the fan management doesn't have anything to do with witchcraft

Dec, 2011

Expert review by : John Ratsey (

Lenovo ThinkPad T420s User Review


If you're looking for a thin and light 14-inch business notebook, what better person to ask about it than someone who owns several? Keep reading to find out what one of our regular contributors has to say about the ThinkPad T420s.

ThinkPad classic looks and build quality ; ThinkPad keyboard ; Light weight for display size ; Full feature set including USB 3.0

Uses 7mm storage devices ; Low capacity battery ; Most ports are at the back ; No backlit keyboard option ; Poor display for price range ; The Lenovo T420s is a lightweight 14-inch business notebook configurable with up to an Intel Core i7 processor...

The Lenovo T420s is a lightweight 14-inch business notebook configurable with up to an Intel Core i7 processor and Nvidia NVS 4200M Optimus graphics.

May, 2011

Expert review by : Keith Combs (

Lenovo ThinkPad T420s - mini review


Last year I bought the ThinkPad T410s when the model with the Optimus graphics became available. It's a great little machine so I was anxious to try the ThinkPad T420s with Optimus and compare the two. I've done that now and I thought you would be...

For most people the big brother T420 is a better fit. The T420 adds IEEE 1394 Firewire, eSATA, standard sized bays, longer battery life, etc. The T420 is a little heavier and thicker but I think it offers the best combination of features. If you...

Apr, 2011

Expert review by : What Laptop (

Lenovo ThinkPad T420s review


A well-built, powerful and pricey business laptop

Excellent performance ; Great keyboard ; Good build quality ; Sharp screen ; 160GB SSD

Price ; Battery life ; Gets quite hot

Apr, 2012

Expert review by : Tom Morgan (

Lenovo ThinkPad T420s review


A powerful and versatile laptop, but poor battery life and business-specific graphics mean it should only appeal to professionals

Mar, 2012

Consumer review (

great laptop


overall excellent laptop. maybe i got lucky and got a nice looking one without too much wear and tear. even though it is old it can be modernized and ive tried many laptops from 2015/16 and this one is just better designed. so good that i can make it...

excelent keyboard(although it would have been way better back lit) fast i7 even thought its from 2011 it keeps up with todays i7s mine came in excellent cosmetic condition super light great customization options like adding a second hard drive or...

the screen viewing angles in dark parts could be better but is not really a big deal mine came with a dead battery im guessing the rebate is so you can get a new one

May, 2016

Consumer review (

Good used product. Easy to set- up & install.


I would buy it again but consider to spent more money for cleaning it. This notebook was for me, so I am more or less fine, but if I buy for employees I would have to raise the bar.

You get what you paid for. You know that you are not buying a new product. Performance is good.

Again, it's used. But I'd prefer to have it cleaned a little bit the next time I buy. I am not saying that I expect a sanitized notebook, but there was still hair. An air blower helps...

Mar, 2016

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