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We test every iPhone 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 iOS updates or to compare against new phones from competitors like Samsung, Google and OnePlus.
Photography
Photography is a major focus for the iPhone, 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 ProRes Log video that debuted with the iPhone 15 Pro and 15 Pro Max.
Battery life
Battery testing is conducted in a variety of ways. We assess how long the iPhone 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 added later in an update.
Performance measuring
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.
Emergency SOS might be one of the most important features to come out on any phone this year.
We perform processor-heavy tasks like editing photos and videos, exporting videos and playing games. We evaluate whether a newer version of the iPhone includes enough features to make it worth upgrading from older models. Some of these tests are added later in updates after the initial review is published.
Read more: How CNET Tests Phones
