The differences in our runtime tests are extreme and the new model is even much worse compared to the last year's X1 Extreme with the 4K panel in our WLAN test with an adjusted luminance of 150 nits. We can see a difference of almost 50% when we compare the X1 Extreme 2019 4K and the ThinkPad P1 2019 FHD, both in the WLAN test (4:45h vs. 8:53h) as well as the video test (4:44h vs. 9:20h).

The gap is smaller when we repeat the WLAN test with the maximum luminance, but the difference is still significant at 4:05h vs. 6:42h.

The question is obviously whether the 4K display still makes sense thanks to better picture quality. Maybe the bright 1080p screen is the better choice? We will answer these questions in our full review of the ThinkPad X1 Extreme 2019, which will be published soon.

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