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Lenovo ThinkBook 14 G4 IAP, i5-1235U


Lenovo ThinkBook 14 G4 IAP, i5-1235U
Lenovo ThinkBook 14 G4 IAP, i5-1235U (ThinkBook 14 G4 Series)
Intel Core i5-1235U 10 x 0.9 - 4.4 GHz, Alder Lake-U
16 GB 
, DDR4-3200
14.00 inch 16:9, 1920 x 1080 pixel 157 PPI, IPS, glossy: no, 60 Hz
1 USB 3.0 / 3.1 Gen1, 2 USB 3.1 Gen2, USB-C Power Delivery (PD), 1 HDMI, Audio Connections: 3.5mm, Card Reader: SD, 1 Fingerprint Reader
10/100/1000 LAN Card (10/100/1000MBit/s), 802.11 a/b/g/n/ac/ax (a/b/g/n = Wi-Fi 4/ac = Wi-Fi 5/ax = Wi-Fi 6/), Bluetooth 5.2
height x width x depth (in mm): 17.9 x 323 x 218 ( = 0.7 x 12.72 x 8.58 in)
45 Wh Lithium-Polymer, 3-cell
Operating System
Microsoft Windows 11 Pro
Primary Camera: 2 MPix
Additional features
Speakers: Stereo, Keyboard: Chiclet, Keyboard Light: yes, 12 Months Warranty
1.4 kg ( = 49.38 oz / 3.09 pounds) ( = 0 oz / 0 pounds)
810 Euro



Reviews for the Lenovo ThinkBook 14 G4 IAP, i5-1235U

[REVIEW] Lenovo ThinkBook 14 Gen 4 - Is Lenovo going overboard with the comfort
Source: Laptop Media English
Single Review, online available, Medium, Date: 06/10/2023
Lenovo ThinkBook 14 Gen 4 review – business in style
Source: Laptop Media English
Lenovo ThinkBook 14 Gen 4’s IPS panel has a Full HD resolution, comfortable viewing angles, and a very good contrast ratio. The color coverage is quite limited (53% of sRGB), which makes the image look a bit dull. However, the backlight doesn’t use PWM for brightness adjustment. This results in a comfortable viewing experience at every brightness level. Unfortunately, the battery life is not good. At least with the smaller 45Wh package. We got 5 hours and 30 minutes of either Web browsing, or video playback. This is nearly a two-hour decrease compared to last year. Now, we can’t pass up the opportunity to mention the performance. It is not bad, but at the same time, could have been a lot better. With laptops like this one, you mostly rely on short-burst loads, where high clock speeds are pretty much essential. Yes, the device is chewing through every daily task you can think of, but you can never have even more speed, right? One thing that could have not even wished to be better is the port selection. You get plenty of USBs, one of which is a Thunderbolt 4 port. Add a LAN port, an HDMI connector, and an SD card reader, and you get all of the MacBook users in the office to envy you badly. Overall, what is really important in our view, is that the ThinkBook 14 Gen 4 is really comfortable to use. Its keyboard is spill-resistant and is a breeze, the display doesn’t strain your eyes excessively, and there is very little fan noise and heat coming from it. We think that it is a great addition to your workflow… provided you don’t need long battery life.
Single Review, online available, Very Long, Date: 03/20/2023
How to open Lenovo ThinkBook 14 Gen 4 - disassembly and upgrade options
Source: Laptop Media English
Support, online available, Very Short, Date: 03/11/2023


Intel Iris Xe G7 80EUs: Integrated graphics card in Intel Tiger Lake G7 SoCs based on the new Gen. 12 architecture with 80 EUs (Execution Units / Shader Cluster). The clock rate depends on the processor model. The Tiger Lake chips are produced in the modern 10nm+ process at Intel.

Modern games should be playable with these graphics cards at low settings and resolutions. Casual gamers may be happy with these cards.

» Further information can be found in our Comparison of Mobile Graphics Cards and the corresponding Benchmark List.

i5-1235U: On Alder-Lake based mobile CPU with 2 performance cores and 8 efficient cores. The performance cores offer hyper threading, leading to 12 threads that can be processed. The CPU clocks from 0.9 to 4.4 GHz. The TDP is specified at 15 Watt.» Further information can be found in our Comparison of Mobile Processsors.


There are hardly any tablets in this display size range anymore. For subnotebooks, on the other hand, it is the standard format.

The advantage of subnotebooks is that the entire laptop can be small and therefore easily portable. The smaller display also has the advantage of requiring less power, which further improves battery life and thus mobility. The disadvantage is that reading texts is more strenuous on the eyes. High resolutions are more likely to be found in standard laptops.

» To find out how fine a display is, see our DPI List.

Lenovo: Lenovo ("Le" from English legend, novo (Latin) for new) was founded in 1984 as a Chinese computer trading company. As of 2004, the company was the largest laptop manufacturer in China and, after acquiring IBM's PC division in 2005, the fourth largest in the world. In addition to desktops and notebooks, the company manufactures monitors, projectors, servers, etc, and specializes in developing, manufacturing and marketing consumer electronics, personal computers, software, enterprise solutions and related services.

In 2016, the company ranked first in the world in computer sales. It still held it in 2023 with about 23% global market share. Important product lines are Thinkpad, Legion and Ideapad.

In 2011, it acquired a majority stake in Medion AG, a European computer hardware manufacturer. In 2014, Motorola Mobility was purchased, which gave Lenovo a boost in the smartphone market.

» Further information can be found in our Notebook Purchase Guide.


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> Notebook / Laptop Reviews and News > Library > Lenovo > Lenovo ThinkBook 14 G4 IAP, i5-1235U
Stefan Hinum, 2023-05- 1 (Update: 2023-05- 1)