We test every aspect of a new phone from the battery and processor to the cameras.
We test every phone in real-world scenarios focusing on its features, design, performance, cameras, battery life and overall value. We document our findings in an initial review that is periodically updated when there are new software updates or to compare against new phones from phones from competitors like Apple, Samsung, Google and OnePlus.
Photography
Photography is a major focus for most phones these days, so we take pictures and videos of various subjects in a variety of settings and lighting scenarios. We try out any new camera modes such as the 4K 120fps slow motion mode that debuted on the iPhone 16 Pro or the Add Me photo tool that launched with the Google Pixel 9 series.
Battery life
Battery testing is conducted in a variety of ways. We assess how long a phone lasts during a typical day of use, and note how it performs during more focused sessions of video calls, media streaming and gaming. We also conduct a video playback test, which isn’t always included in the initial review and is added later in an update.
The Galaxy Z Flip 5 largely has the same camera hardware as the Z Flip 4. But the new chip brings some image processing improvements.
Performance
We use benchmarking apps to measure the performance, alongside our own anecdotal experiences using the phone for our review. Of particular note are how graphics and animations look. Are they smooth? Or do they lag or stutter? We also look at how quickly the phone switches between horizontal and vertical orientations and how fast the camera app opens and is ready to take a photo.
We perform processor-heavy tasks like editing photos, exporting videos and playing games. We evaluate whether a newer version of a particular phone includes enough features to make it worth upgrading from older models.
Read more: How We Test Phones
