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Using Rubric on Apple Watch

Using Rubric on Apple Watch

Rubric on Apple Watch is a voice-only interface. There is no visual Watch app, no complications, and no on-wrist dashboard. You raise your wrist and speak.

What the Watch Does

The Rubric Watch app exists to bring all 9 Siri commands to your wrist. The app icon appears on your Watch, but tapping it opens a minimal status screen showing only your connection status. The real interface is Siri.

Every command available on your iPhone works identically on Apple Watch:

  • Check your data: “What’s my Rubric score?” or “How are my calories?”
  • Log on the go: “Log 200 calories on Rubric” or “Log a banana on Rubric”
  • Manage your day: “What’s my next action on Rubric?” or “Mark workout complete on Rubric”

For the full command reference, see Siri Integration.

When the Watch Works Best

The Watch excels at moments when pulling out your phone is inconvenient:

  • Quick status checks while cooking, at the gym, or on a walk.
  • Logging a meal right after eating, without interrupting a conversation.
  • Confirming a workout immediately after finishing a session.
  • Checking your calorie balance during grocery shopping.

Authentication

Your Watch authenticates automatically through your iPhone. When you sign in on your iPhone, the necessary credentials transfer to your Watch without any action from you.

If the Watch cannot authenticate (e.g., your iPhone is out of range and you have never used Rubric on the Watch before), Siri will respond: “Open Rubric on your iPhone to sign in.”

What the Watch Does Not Do

The Watch is not a second screen for Rubric. The following require the iPhone or web app:

  • Photo logging (no camera integration through Watch).
  • Coach conversations (requires the full interface).
  • Protocol creation, review, or attestation.
  • Dashboard browsing or historical data.
  • Editing or deleting existing entries.

Safety

Write commands from the Watch pass through the same safety checks as in-app logging. Calorie range validation, allergen scanning, and rate limiting all apply. A 60-second deduplication window prevents double entries from accidental wrist-raise triggers.

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