The latest smartphone from Apple boasts an improved camera, stereo speakers, new colour options, and — controversially — the removal of the headphone jack.
It went on sale around the world at 8 a.m. on Friday morning (local time).
Because of timezones, Australia was the first country in the world where the high-end smartphone was available.
In England, we headed down to the Covent Garden Apple Store to check out the launch.
Read on to see what it was like...
Historically, Apple Stores have had massive queues on iPhone launch days as customers camped out for hours to be the first to get their hands on the new smartphone.
This year, however, the coveted devices are only available to those who have ordered them in advance online. There was no stock for in-store purchases on Friday, though some has been reserved for business-as-usual shop floor sales on Saturday and beyond.
That hasn't stopped some people turning up early to be at the front of the line. Arjun Kharpal, a reporter for CNBC, said that the first people turned up at 5 or 6 in the morning — despite a ferocious thunderstorm in the UK.