The Galaxy Z Flip 4 (left), Galaxy Z Flip 5 (middle) and Motorola Razr Plus (proper)
We check each telephone in real-world eventualities, specializing in its options, design, efficiency, cameras, battery life and general worth. We doc our findings in an preliminary evaluate that’s periodically up to date when there are new software program updates, or to check it towards new telephones from opponents reminiscent of Apple, Samsung, Google and OnePlus. Under is our methodology for testing smartphones on the whole, which additionally applies to flip telephones.
Pictures
Pictures is a significant focus for many telephones, so we take footage and movies of assorted topics in a number of settings and lighting eventualities. We check out any new digital camera modes, such because the revamped Motion mode on the iPhone 15 line, or the Magic Editor picture software that launched with the Google Pixel 8 collection.
Taking a photograph with the Galaxy Z Flip 5.
Battery life
Battery testing is carried out in a wide range of methods. We assess how lengthy a telephone lasts throughout a typical day of use and be aware the way it performs throughout extra centered periods of video calls, media streaming and gaming. We additionally conduct a video playback check, as a easy, replicable measure of pure battery life, which is not all the time included within the preliminary evaluate however is usually added later in an replace.
Efficiency measuring
We use benchmarking apps to measure every telephone’s efficiency, alongside our personal anecdotal experiences utilizing the telephone for our evaluate. Of be aware are how graphics and animations look. Are they easy? Or do they lag or stutter? We additionally take a look at how rapidly the telephone switches between horizontal and vertical orientations, and how briskly the digital camera app opens and is able to take a photograph.
We carry out processor-heavy duties like modifying photographs, exporting movies and enjoying video games. We consider whether or not a more recent model of a selected telephone consists of sufficient options to make it value upgrading from older fashions.
Learn extra: How we check telephones
