Guides
Logging a migraine from your Apple Watch
Every migraine diary has the same weak point: the moment of the attack is exactly the moment you're least able to use one. Moving the log from a bright phone to two taps on your wrist attacks that weakness directly.
Why the phone fails you mid-attack
Picture the actual scene, not the idealized one. The pain has arrived, or the aura is announcing it. The phone is — where? The other room, the bottom of a bag, charging in the kitchen. You find it, raise it, and the screen fires a few hundred nits of white light into eyes that photophobia has turned against you. Now unlock, find the app, navigate to the log screen, and answer questions, while nausea argues for putting the phone down and lying very still.
So the log doesn't happen. "I'll do it after" becomes the evening, becomes tomorrow, becomes a reconstructed guess — and reconstructed entries are quietly wrong about the one thing that matters most, the start time. Worse, the attacks most likely to be skipped are the severe ones, which means the diary systematically underrepresents your worst days. A tracking method that fails hardest exactly when the data matters most is a design problem, not a discipline problem.
Two taps on the wrist
The Apple Watch changes the physics of the situation. It's already on your body — no finding, no reaching. Its screen is small and, in Dim's case, near-black, a dim ember rather than a floodlight. And the interaction is built to be over before nausea gets a vote: raise your wrist, tap the Dim complication, tap to confirm. The attack is logged with its true timestamp, synced to your iPhone diary and written to Apple Health without further ceremony.
That two-tap entry is deliberately incomplete. It captures the fact and the moment of the attack — the two things only attack-time logging can capture — and defers everything else. Intensity, medication, whether the pain moved: those are questions for later, answered on the phone once you're functional, attached to the entry the watch created. Meanwhile the context you'd never gather by hand mid-attack — local weather, temperature, barometric pressure and its trend, last night's sleep — is captured automatically the moment the log starts. The division of labor is honest: you contribute one gesture; the software contributes everything that can be automated; nothing depends on heroics.
Attack start times are the raw material for almost every insight a diary can produce — duration, time-of-day patterns, and the lag between a trigger and its attack. Research on trigger timing suggests windows of hours matter; an entry backfilled the next evening can miss by half a day. Two taps at onset protect all of it.
The Live Activity: an attack in progress
Migraine attacks aren't events, they're episodes — hours long, sometimes days. Dim treats them that way with a Live Activity: while an attack is open, it sits on your lock screen as a quiet, dark card. Wake the phone and it's simply there — no unlock, no app hunt — showing the running attack and offering the interactions that matter mid-episode: nudge the intensity up or down, note a dose, mark the attack over. Each touchpoint costs a glance and a tap, which is the correct price during the hours when everything costs triple.
Ending the attack matters more than people expect, because the end time completes the duration — and duration is one of the numbers your neurologist reads from a doctor report. A lock-screen card that's visibly "still running" is a gentle prompt to close it, in a way a buried app never is.
Widgets: the diary at a glance
Between attacks, Dim's home-screen and lock-screen widgets keep the diary ambient rather than buried. A widget can show days since the last attack or this month's headache-day count so far, and acts as a one-tap doorway to the log. There's a subtle honesty benefit: seeing "day 12 attack-free" makes the diary feel like a scoreboard of good days rather than a ledger of bad ones — and keeps the good-day context accumulating too. It also removes the last excuse for a missed entry when the watch is on the charger: the phone path is one tap from the home screen, not a spelunking expedition.
None of this hardware is mandatory — the iPhone app works alone, as our Apple Health guide covers. But if a Watch is already on your wrist, letting it carry the mid-attack burden is the single biggest upgrade a migraine diary can get. Watch logging, Live Activity and widgets are part of Dim Pro, with a 7-day trial to see whether the wrist workflow sticks.
Quick answers
Does Watch logging work without the iPhone nearby?
The two taps register on the watch either way, and entries sync to your iPhone diary when the devices reconnect — so a log made on a run or away from the phone isn't lost.
Can I add details from the watch too?
The watch is deliberately minimal: capture the attack, nothing more. Intensity, medication and notes are added later on the iPhone, where a bigger (still near-black) screen makes it painless.
Is Apple Watch support included in the free version?
Watch logging, Live Activity and widgets are Dim Pro features. Pro comes with a 7-day free trial, and the core iPhone diary stays free.
Log it before the nausea votes
Two taps on your wrist, and the attack is recorded with weather, pressure and sleep attached. Dark, quiet, private — no account, no ads.
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