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Apple Watch

Run your workout from your wrist. The HyperIron Watch app handles the whole in-gym logging loop — starting your workout, hitting your program's targets, and finishing up — without pulling your phone out of your pocket or gym locker.

What you can do on the watch​

  • Start today's workout — the watch shows the next workout in your active program, exactly as computed by HyperIron's progression engine.
  • See your targets — weight, reps, and RIR are prefilled for every set based on your program and progression history, the same numbers you'd see on your phone.
  • Log a set in one tap — if the prefilled numbers are right, tap LOG and move to the next set.
  • Adjust on the fly — turn the Digital Crown or use the +/− buttons to change weight, reps, or RIR before logging, if today calls for something different.
  • Rest, with a tap on the wrist — logging a set starts a rest countdown automatically (using your per-exercise or account-default rest time). At zero, your watch taps you; if you don't dismiss it, it taps again a few seconds later so it's hard to miss with headphones in.
  • Finish the workout — wrap up from the overview screen, with a quick summary (duration, sets, volume, and average/max heart rate) right on your wrist.

If you force-close the watch app or it restarts mid-workout, your session picks up right where you left off.

No login required​

The watch doesn't have its own account — it uses whichever account is signed in on your paired iPhone. There's nothing to type on the small screen.

Your phone stays in your pocket — but it isn't optional​

The watch app works with your phone out of reach — a gym locker, your car, across the room. Everything you log on the watch is queued and relayed to your iPhone the moment it's reachable again, then synced to your account through the same pipeline as workouts logged directly on the phone.

That makes the watch a companion to your phone, not a standalone device. It doesn't talk to HyperIron's servers on its own and can't sync a workout to the cloud by itself. If your phone is off or out of range for an entire session, your logged sets stay safely queued on the watch until the two reconnect — nothing is lost, and you don't need to do anything to trigger the sync.

Heart rate and Activity Rings​

Starting a workout on the watch begins a proper Apple Health workout session, which gives you:

  • Live heart rate shown in the session screen
  • A session heart-rate summary — when you finish on the watch, your average and max heart rate for the workout are saved with the session and shown on the watch summary, in the workout's calendar detail on your phone, and on the workout page on the web
  • Activity Rings credit for the workout
  • More reliable background haptics — your rest timer keeps firing even with the screen off or your wrist down

The summary is the only heart-rate data HyperIron keeps — the full beat-by-beat recording stays in Apple Health, where you can always view it. Heart rate never affects your targets, volume, or progression; it's context alongside the session, like bodyweight. Workouts logged on your phone or the web don't have it, and if you hand a watch workout off to your phone mid-session (Continue on iPhone), the heart-rate summary for that session isn't saved.

If you decline HealthKit access, logging and rest timers still work — you just won't get heart rate or rings credit, and background rest-timer haptics may be a little less reliable.

Continue on iPhone​

Only one device drives a workout at a time. If you start on the watch and want to switch to your phone mid-session, open the workout on your phone and tap Continue on iPhone — everything you've logged so far comes with you, and the watch drops back to a summary screen. There's no double-logging.

The reverse isn't available yet: a workout started on your phone can't currently be handed off to the watch mid-session.

note

Live mirroring — the phone and watch updating each other in real time while you use both together during the same workout — isn't supported yet. Pick one device to drive the workout; the other shows it as in-progress but read-only until you finish or hand off.

What stays on your phone​

The watch is intentionally scoped to the logging loop. Everything else about managing your training still lives on your phone or the web app:

  • Building and editing programs
  • Exercise substitutions, modifiers, and notes
  • Editing or deleting sets after the fact
  • Warm-up sets
  • Quick (standalone) workouts
  • Workout history, PRs, and progress charts
  • Fatigue ratings
  • Settings and unit preferences

Requirements​

  • watchOS 10 or later
  • Your Apple Watch paired to an iPhone signed in to HyperIron

Android's Wear OS isn't supported yet — the watch app is Apple Watch only for now.