The Galaxy Z Flip 4 (left), Galaxy Z Flip 5 (middle) and Motorola Razr Plus (proper)
We take a look at each cellphone in real-world eventualities, specializing in its options, design, efficiency, cameras, battery life and total worth. We doc our findings in an preliminary evaluation that’s periodically up to date when there are new software program updates, or to check it towards new telephones from rivals similar to Apple, Samsung, Google and OnePlus. Under is our methodology for testing smartphones basically, which additionally applies to flip telephones.
Pictures
Pictures is a significant focus for many telephones, so we take footage and movies of varied 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 photograph instrument that launched with the Google Pixel 8 sequence.
Taking a photograph with the Galaxy Z Flip 5.
Battery life
Battery testing is carried out in quite a lot of methods. We assess how lengthy a cellphone lasts throughout a typical day of use and notice the way it performs throughout extra centered periods of video calls, media streaming and gaming. We additionally conduct a video playback take a look at, as a easy, replicable measure of pure battery life, which is not all the time included within the preliminary evaluation however is typically added later in an replace.
Efficiency measuring
We use benchmarking apps to measure every cellphone’s efficiency, alongside our personal anecdotal experiences utilizing the cellphone for our evaluation. Of notice are how graphics and animations look. Are they clean? Or do they lag or stutter? We additionally take a look at how shortly the cellphone 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 enhancing images, exporting movies and taking part in video games. We consider whether or not a more moderen model of a specific cellphone contains sufficient options to make it price upgrading from older fashions.
Learn extra: How we take a look at telephones
