In iOS 13, incredibly, that works even if the phone has no internet connection — if, for example, you left it in some Montana bus stop that has no signal.
Apple has turned the world’s 1.4 billion other iPhones, iPads, and Macs into remote detectors for your phone. Any passing iOS 13 iPhone will, unbeknown to its owner, pick up your phone’s silent Bluetooth beacon signal and relay its location back to you.
To make all of this happen so securely that neither Apple nor anybody else can locate your phone, Apple designed a solution that requires you to own a second Apple device; it’s the only machine capable of decrypting your phone’s location.
(You can turn the feature off in Settings >[your name] > Find My > Find My iPhone.)
The New Photo Viewer
The Photos tab of the Photos app presents your entire photos collection in a delightful and efficient way: As grids of photos labeled Years, Months, and Days. (Videos play silently in place as you browse.)
Each presents representative photos; the software omits duplicates, duds, and screenshots. You can time-zoom in or out — from Years to Months to Days, or the other way — by pinching or spreading two fingers.
Handily enough, you remain on the same photo as you zoom. For example, if a photo of a bleary-eyed you is the sample photo for 2019, you’ll land on the same photo when you zoom into Months (as the October photo), and again into Days (for this week).