A plan for today that already knows what last night did to you.
A red-eye is not a rest day and it is not a normal night either. The debt is carried forward honestly, tonight's need moves with it, and the training advice for the morning after follows from the night rather than from the plan you wrote a week ago.
Food logged from a photo
An airport meal with no label and no menu is a photo, not a search through a database for something close enough.
Training that moves with the night
Strain is gated on recovery, so the session after a bad night is scaled rather than simply missed and felt guilty about.
Sleep debt that accounts for a missed night
A red-eye or a bad hotel night shows up honestly in the debt calculation, and tonight's need adjusts instead of resetting to a flat number.
Everything still syncs through your own iCloud
No dependence on hotel wifi for your data to be safe — sync is optional and goes through your own private iCloud account when it's on.
What Life OS doesn't try to be
It doesn't do timezone-shifted meal or sleep coaching for jet lag specifically — the sleep-debt math is general, not a jet-lag protocol. And it reads whatever your Watch recorded: a night it did not measure is a night it will say it does not know about, rather than one it fills in.