Given the number of users who are eligible for an upgrade, Dan Ives of the investment company Wedbush Securities predicts that the iPhone 15 series will be one of Apple's best-selling models ever.
There are 250 million iPhones that are more than four years old and still in use, so we will likely see a big wave of upgrades once the iPhone 15 series arrives, presumably this September as per Apple's regular schedule. Ives gave a positive forecast for Apple's stock prices on CNBC in part because of this.
In light of the recently announced Apple Vision Pro AR headset, Ives was also optimistic about Apple's future success. This first for Apple has generated a lot of buzz despite not going on sale until next year (unlike the iPhone 15) and being listed at an eye-watering $3,500.