Do Apple and Google Sabotage Older Phones? What the Graphs Don't Show
Harvard economics professor Sendhil Mullainathan takes a look in the New York Times at interesting correlations between the release dates of new phones and OSes and search queries that indicate frustration with the speed of the phones that people already have. Mullainathan illustrates with graphs (and gives plausible explanations for the difference) just how different the curves are over time for the search terms "iPhone slow" and "Samsung Galaxy slow." It's easy to see with the iPhone graph especially how it could seem to users that Apple has intentionally slowed down older phones to nudge them toward upgrading. While he's careful not to rule out intentional slowing of older phone models (that's possible, after all), Mullainathan cites several factors that mean there's no need to believe in a phone-slowing conspiracy, and at least two big reasons (reputation, liability) for companies — Apple, Google, and cellphone manufacturers like Samsung — not to take part in one. He points out various wrinkles in what the data could really indicate, including genuine but innocent slowdowns caused by optimizing for newer hardware. It's an interesting look at the difference between having mere statistics, no matter how rigorously gathered, and knowing quite what they mean.
I don't think there's any reason to read a conspiracy into the situation. They release a new phone that's much faster, and then they release an updated OS with new features to take advantage of that extra computing power. Adding features that use more computing power makes the old phones seem slow.
I'm tempted to compare it to the development of desktops and laptops, both of which went through similar upgrade cycles before leveling off a bit. However, there's a big difference in that desktop and laptops were developing quickly to cram features into the OS, at the cost of focus on efficiency, which serves as a partial explanation as to why things became "slow" with upgrades. Desktop and laptop software went through a period of bloat, and then in recent years, additional features traded off against speed gains from recoding things with efficiency as a goal. Meanwhile, Android and iOS needed to be written to be efficient from the start. They wanted to make the hardware as small/thin/light as possible, which meant that the power requirements had to be low. To give an example of the effects of this, a requirement for using as little power as possible has been the reason iOS has always limited multitasking.