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For MacBooks and premium Windows 10 (and soon Windows 11) laptops, a runtime of over 9 hours is considered a good result whereas gaming laptops and workstations that can stay powered for longer than 5 hours deserve praise. Last but not least, our battery test consists of continuous web surfing over Wi-Fi at 150 nits of brightness. We also run heat tests by playing a 15-minute full-screen video and measuring temperatures in different areas of the laptop. Gaming laptops go through an entire library of games at high settings to see how their discrete GPUs keep up. Our real-world graphics test is the Dirt 3 benchmark with medium settings at 1080p resolution. To determine real-world performance, we task the laptop to convert a 4K video to 1080p resolution and to duplicate a 4.97GB multimedia file.

For performance testing, we run the laptop through a gauntlet of benchmarks, including Geekbench 4.3 and 5.0 and 3DMark professional graphics tests.

In our benchmark testing, we use a Klein K10 colorimeter to detect the brightness and sRGB color gamut of the laptop's display. We evaluate each aspect of the laptop, including its performance, battery life, display, speakers and heat management. We put 2-in-1 laptops through extensive benchmark testing - both synthetic and real-world - before they end up in the hands of our reviewers.

If you plan to take the notebook to class or the library, don't count on there being an outlet! Consider a laptop that gets at least 9 hours of battery life, which should be enough to get you through a couple of classes with enough juice for studies. Battery life is another key component of any good 2-in-1 laptop.