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What do I need?

An iPhone and an Apple Watch. The watch measures your heart rate — that is the core of the app; the phone handles setup and your records. Install KINETIC on both, on matching versions.

On a Garmin? See the Garmin edition group below — KINETIC for the watch is out now on Connect IQ.

My session started but no heart rate appears

Usually a permissions issue. On iPhone: Health › Sharing › Apps and Services › KINETIC, and enable the heart-rate items. If it was denied on the watch, the app tells you directly and points the way. Start a new session once access is granted.

Heart rate shows "--" mid-session

That means no new reading for over six seconds — usually a loose band or a sweaty wrist. Past thirty seconds it shows "GAP" and counts; once the watch reads your heart rate again, recording continues and the trace keeps that gap. If the number doesn't come back after refitting the band, raise your wrist and open KINETIC on the watch.

If it happens often, tighten the band one notch and wear it two fingers above the wrist bone.

How are heart-rate zones calculated?

Three methods: max heart rate (MHR), heart rate reserve (HRR) and lactate threshold (LTHR). On "auto" the most accurate available method is chosen from the data you've entered.

You can also set them yourself: pick CUSTOM under calculation method and enter the lower-bound percentage for all five zones. There's also a global offset of up to ±15 BPM if the whole set feels off.

How does the heart-rate ceiling work?

Profile › Heart Rate Ceiling. Follow your Zone 5 lower bound, or enter your own number. Cross it and your watch buzzes immediately, then every five seconds until you drop back below. Open sessions (OPS) only — Zone 2 already buzzes on zone changes, and VO2 Max intervals are supposed to reach high heart rates.

Can I train without my phone?

Yes. The watch can start, run and finish a session on its own, and syncs the record next time it reaches your phone — provided your settings have synced from the phone at least once.

Will a tip charge me again?

No. Tips are one-time purchases handled by the App Store — no subscription, no recurring charges.

Can I get a refund?

Refunds are handled entirely by Apple; developers cannot issue them. Request one at reportaproblem.apple.com with your Apple Account.

I got a new phone — is my tip still there?

Tips are one-time, consumable purchases: once sent they're complete, and no record carries over to a new device. They unlock nothing, so nothing about using the app changes.

Where is my data stored?

On your devices. No account, no server, nothing uploaded. See the privacy policy.

What do I install?

Two apps: "KINETIC" on the watch (Connect IQ store) and "KINETIC Link" on the iPhone (App Store — search KINETIC ZONE 2 and pick the one subtitled "Works with your Garmin watch"). The watch app trains on its own; the phone app handles setup, the dashboard and your history. Requires iOS 17 or later and a watch paired in Garmin Connect.

Which watches?

64 models across ten lines: Forerunner 165 / 165 Music / 255 / 255 Music / 265 / 265S / 570 / 955 / 965 / 970; fēnix 6 Pro / 6S Pro / 6X Pro / 7 / 7S / 7X / 7 Pro / 7S Pro / 7X Pro / 8 / 8 Pro / 8 Solar / E; epix (Gen 2) and epix Pro; Enduro 3; Venu 2 / 2S / 2 Plus / 3 / 3S / 4; vívoactive 5 / 6; MARQ Gen 1 and Gen 2; Descent G2 / Mk2 / Mk2S / Mk3; Approach S50 / S70; D2 Air X10 / Mach 1 / Mach 2 / Mach 2 Pro. The KINETIC page in the Connect IQ store is the authoritative list. Square displays and the Instinct line aren't supported yet; watches without Connect IQ (the vívomove line, for example) can't install it. Missing yours? Tell me the model.

The phone can't find my watch

Make sure Garmin Connect is installed and the watch is paired and connected in it. In KINETIC Link, on the OPS tab, tap "選擇 Garmin 裝置 / Choose Garmin device" — it hands off to Garmin Connect and comes back. If it doesn't, switch back to KINETIC Link yourself. Without Garmin Connect on the phone the button does nothing; that is a limitation of Garmin's SDK.

Controls on the watch

Pick a protocol and its settings with the up/down keys or swipes; START to begin. To finish, press START·STOP (or tap the screen) and confirm "END?". Counting (OPS only): LAP adds one; DOWN or a swipe down takes one back — on watches without a DOWN key (vívoactive 5, for example) just swipe. Timed sessions end and save on their own.

Is the watch in Chinese?

Traditional Chinese when the watch language is set to it, English otherwise. Telemetry labels (ELAPSED, REC, IN ZONE, OPS / BASE / PEAK) stay English in both, as on the Apple Watch version.

Where does a session show up?

In Garmin Connect as an activity (OPS as Strength, BASE as Cardio, PEAK as HIIT), and in KINETIC Link with your zone ledger, verdict and share card. Two different records, not duplicates.

GPS and distance?

No. KINETIC does heart rate, zones and time. For distance and route, use a native Garmin activity.

Why does the watch take a few seconds after I press start on the phone?

The command is relayed through Garmin Connect on your phone — usually one to a few seconds. Starting on the watch is instant.

I have both an Apple Watch and a Garmin

Fine. The two iPhone apps (KINETIC and KINETIC Link) are independent and keep separate records — open the app for the watch you're wearing.

Can I tip in the Garmin edition?

Yes — bottom of the PROFILE tab in KINETIC Link. Same as the Apple Watch app: one-time, paid through the App Store, no recurring charge, unlocks nothing; tips in the two apps are independent.

When reporting a Garmin-edition problem, please include

Garmin model and firmware version, the watch language setting, Garmin Connect version, iPhone model and iOS version, KINETIC Link version (bottom of the PROFILE tab), and whether it happened on the watch or the phone.