Lenovo ThinkPad L15 Gen 3 – Top 5 Pros and Cons

Lenovo’s ThinkPad L15 Gen 3 has some pretty good specs and features, but also comes at a price point that’s dangerously close to the Fujitsu LifeBook U7512. The LifeBook is a device that surprised us as much as it will surprise you, having a premium design, great display, and good upgradeability. Today, however, it’s all about the ThinkPad L15 and what it does, both good and bad. You have a variety of hardware to pick from, which means a lot of flexibility when it comes to performance and efficiency. However, not everything is about raw power, as we’re talking about enterprise solutions, where security and stability can make or break a device.

Today we’re presenting you with LaptopMedia’s top 5 picks about the Lenovo ThinkPad L15 Gen 3.

Lenovo ThinkPad L15 Gen 3: Full Specs / In-depth Review

4 reasons to BUY the Lenovo ThinkPad L15 Gen 3

1. Design and build quality

ThinkPads aren’t shy about using plastic, and the ThinkPad L15 keeps the trend going. The laptop is fully made of the material, however, you wouldn’t be able to feel it, as Lenovo has made it pretty tough. There’s little to no flex from both the lid and the base, and the black finish on the laptop feels good. It’s not the lightest 15-inch business machine, coming in at 1.76 kg and with a profile of 19.9 mm.

2. Input devices

ThinkPads have always been quality when it comes to the keyboard, which is quite important since it’s something that you’ll always use and needs to be reliable and good. On the ThinkPad L15, we have a spill-resistant backlit unit with long key travel and clicky feedback. The touchpad, however, isn’t as exciting. The Mylar surface is smooth, however, we feel like the responsiveness could use some work.

3. I/O

The port selection of the ThinkPad is pretty well filled out. There are two USB Type-A 3.2 (Gen. 1) ports, two Thunderbolt 4 ports, an HDMI 2.0 port, a MicroSD card slot, a LAN port, and a 3.5 mm combo jack.

4. Upgradeability

Lastly, Lenovo is allowing you to stick in more memory when needed, thanks to two SODIMM slots. They can fit up to 64GB of DDR4 RAM. Storage-wise, there’s only one M.2 slot. It fits Gen 4 SSDs, however, you do have to get the smaller 42 mm drives.

Here is our detailed teardown video which shows how to access the RAM and SSD slots onside the ThinkPad L15 Gen 3.

1 reason NOT to buy the Lenovo ThinkPad L15 Gen 3

1. Display quality

Lastly, the Full HD IPS panel could have been better. For pure business and daily work, it will serve you just fine, as the viewing angles are fine. It could have been brighter, as it maxes out at just 256 nits, so outdoor use might not be the best. On the other hand, the contract ratio is high, at 1480:1, which should give you deep blacks. In terms of color reproduction, the panel comes with just 54% sRGB coverage.

The accuracy isn’t great as well, as both with the stock settings (left) and with our Design and Gaming profile (right), the dE value doesn’t go below 2. Here are the results of our test.

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Since our profiles are tailored for each individual display model, this article and its respective profile package are meant for Lenovo ThinkPad L15 Gen 3 configurations with 15.6″ Innolux N156HCA-E5B (LEN40BA) (1920 x 1080) IPS.

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In addition to receiving efficient and health-friendly profiles, by buying LaptopMedia's products you also support the development of our labs, where we test devices in order to produce the most objective reviews possible.

Office Work

Office Work should be used mostly by users who spend most of the time looking at pieces of text, tables or just surfing. This profile aims to deliver better distinctness and clarity by keeping a flat gamma curve (2.20), native color temperature and perceptually accurate colors.

Design and Gaming

This profile is aimed at designers who work with colors professionally, and for games and movies as well. Design and Gaming takes display panels to their limits, making them as accurate as possible in the sRGB IEC61966-2-1 standard for Web and HDTV, at white point D65.


Health-Guard eliminates the harmful Pulse-Width Modulation (PWM) and reduces the negative Blue Light which affects our eyes and body. Since it’s custom tailored for every panel, it manages to keep the colors perceptually accurate. Health-Guard simulates paper so the pressure on the eyes is greatly reduced.

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All Lenovo ThinkPad L15 Gen 3 configurations:

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