“The iPhone 7 is said to be 120 times faster than the original 2G, which came out a whopping nine years ago—that’s a lot of progress in less than a decade.” So begins a terrific suite of tests on every iPhone Apple has shipped: boot time, speed benchmarks, camera quality (and low light performance), Touch ID response, camera launch times, operating temperature, sound output, and more. What a nifty video—and nicely narrated. Nine years of iPhone development before our eyes.