Fitbit Air already shows your heart rate live, as a number, right inside Google Health. What it can't do is tell you whether that number means you're cruising or redlining, build you a workout, or coach you through a lift. That's the part FITIV Pulse adds. Here's how to connect the two, and what you actually get once you do.

TL;DR

• Google Health shows live heart rate as a plain number. No zones, no zone settings, no sense of effort
• FITIV reads that same live signal and turns it into Heart Rate Zones, Strain, and a full post-workout summary
• Beyond zones, FITIV adds a workout builder, strength training templates, custom interval workouts, live feedback when you cross into a new zone, and HR Stream for broadcasting to gym equipment
• Setup is two apps, about 60 seconds: Google Health, then FITIV
• No Apple Watch needed, and this works with any currently supported Fitbit model, not only Air

Checking Your Heart Rate in Google Health vs. FITIV

Open Google Health, tap the device icon, select Fitbit Air, and you'll see your current BPM update live. That's genuinely useful for a quick check. What you won't find there is any concept of zones, no indication of whether that number is easy, moderate, or hard effort, and nothing that turns a workout into a story you can look back on.

For the setup steps below, that gap is exactly what you're closing.

How to Connect Fitbit Air to FITIV for Live Zones

1. Open Google Health on your iPhone
2. Tap the device icon, then your Fitbit Air
3. Scroll to Share heart rate and toggle on Always visible
4. Open FITIV Pulse, go to the Workouts tab, and tap Discover Devices
5. Select Fitbit Air and set it as your main tracking device
6. Start a workout to confirm heart rate is coming through live

📝 Google Health doesn't need to stay open once Always visible is on. It broadcasts in the background.

✅ What good looks like: heart rate updates within seconds of starting a workout, shown as Heart Rate Zones rather than a single number.

This also applies to any currently supported Fitbit model, not just Air, since it's the newest and most-searched option right now.

What FITIV Actually Adds Once You're Connected

This is the part that's easy to undersell: FITIV isn't just a zones display. Once Fitbit Air is connected, a few things become available that Google Health has no version of at all.

Heart Rate Zones and Strain. Your live heart rate gets classified into zones in real time, and FITIV builds a Strain score from your effort across the whole session, not just a single number at the end.

A real workout builder. Instead of logging a generic activity, you can build workouts structured around sets, reps, intervals, and rest, the same band's heart rate feeding zone data through all of it.

Strength training templates. FITIV has built-in templates for strength sessions, so you're not starting from a blank screen every time you want to track a lifting day against your heart rate response.

Custom interval workouts. Set your own work and rest intervals, run intervals, HIIT circuits, tempo work, and FITIV tracks how your heart rate responds to each one, not just the workout as a whole.

Live feedback when you cross zones. FITIV can tell you the moment you move from one heart rate zone into the next, so you know you've drifted into a harder zone than you meant to without having to check your screen mid-set.

HR Stream. Your Fitbit Air's heart rate can also be broadcast out to compatible gym equipment, treadmills, bikes, and other machines that accept a heart rate signal, so the same reading follows you from your wrist to the equipment display.

On top of all that, the in-workout experience itself is customizable: choose which metrics and views show up on screen while you train, see your HR zone distribution as it builds in real time, and check any of it from your Lock Screen with Live Activities without opening the app.

Background Data: Sleep, Steps, and Vitals

Live heart rate during a workout is a separate connection from your Fitbit's background data. As of the Google Health 5.05 update in August 2026, Google Health can also write sleep, steps, vitals, and exercise records into Apple Health, where FITIV reads it automatically to inform Recovery Score and Training Readiness. No separate FITIV setup is needed, just grant the permission inside Google Health's Partner apps settings.

The one exception is HRV, which doesn't currently cross over through either connection. Check it directly inside Google Health if that's a metric you track.

Common Mistakes and Fixes

Assuming Google Health will show zones once the broadcast toggle is on.It won't. The toggle only makes the signal available to other apps. Connect Fitbit Air inside FITIV to actually see zones.

Wearing an Apple Watch and Fitbit Air at the same time, expecting combined data.FITIV uses one heart rate source per workout. Pick whichever device you trust more for that session.

Dismissing Google Health's prompt to share heart rate with connected apps.That prompt grants the Always visible permission. Accept it once and it won't ask again.

Assuming Fitbit Air has stopped tracking when it's actually a connection issue.Before troubleshooting the band, confirm Always visible is still on in Google Health and Fitbit Air is still selected as your active source in FITIV. These occasionally reset after an app update.

Frequently Asked Questions

Does Fitbit Air show live heart rate?

Yes, as a live number inside Google Health. It doesn't show zones, effort classification, or a time-in-zone breakdown, that's what connecting FITIV adds. See the setup steps above.

How do I check or see my current heart rate on Fitbit Air?

Open Google Health, tap the device icon, select Fitbit Air, and your BPM updates live on screen. For zones on top of that number, follow the FITIV connection steps above.

Can Fitbit Air broadcast heart rate to other apps?

Yes, once Always visible is toggled on under Share heart rate in Google Health, Fitbit Air broadcasts over Bluetooth to connected apps like FITIV, without needing Google Health open during your workout.

Does Fitbit Air track vitals and HRV?

It tracks additional vitals alongside heart rate, and since the August 2026 Google Health update, that vitals data syncs into Apple Health for FITIV to use in Recovery Score and Training Readiness. HRV is the exception, it doesn't currently cross over. Check it directly in Google Health.

What are Strain Score and Recovery Score?

Both are FITIV metrics, not native Fitbit ones. FITIV calculates them from the heart rate and vitals data it reads from your Fitbit Air.

Do I need an Apple Watch, and does this work with other Fitbit models?

No Apple Watch needed, your iPhone and Fitbit Air are enough. And yes, the same setup works with any currently supported Fitbit model, not only Air.

Why isn't my heart rate updating in real time?

Usually the Always visible toggle in Google Health has been switched off, or Fitbit Air isn't selected as your active source in FITIV. Check both before your next session.

What can FITIV do that Google Health can't?

Heart Rate Zones, a workout builder, strength training templates, custom interval workouts, live feedback when you cross zones, and HR Stream for broadcasting to gym equipment. See the full breakdown above.

Is "Fitbit Pulse" the same as FITIV Pulse?

No, there's no product called Fitbit Pulse. If you're looking for the app that turns your Fitbit Air's heart rate into live training data, that's FITIV Pulse.

Open Google Health, turn on Always visible under Share heart rate, then connect Fitbit Air inside FITIV Pulse. You already have the live number, this is what turns it into a workout.

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The FITIV Team

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