Live Heart Rate
128 BPM
ZoneSync™
You Walk. It Syncs.
Your live heart rate guides the treadmill. ZoneSync automatically adjusts speed and incline to help keep you in your personal Zone 2 range.
Live HR Control
Real-time heart rate tracking
Auto Speed + Incline
Adjusts in real time
Stay in Zone 2
No mid-session adjustments
Target Zone
Zone 2
120–135 BPM
Live
Auto Adjusting
Speed
↓ 0.2 mph
Incline
↑ 1%
The Problem ZoneSync Solves
Heart Rate Drift Is Real. ZoneSync Helps You Stay Ahead of It.
At a constant effort, your heart rate slowly climbs over time. This is cardiac drift — it silently pulls you out of Zone 2 around minute 20 of every session, without you feeling the change.
🕐
Starts around minute 20
Even at a constant pace, your HR climbs as your core temperature rises. By minute 30 you can be 10+ BPM above your Zone 2 ceiling — training too hard, without knowing it.
✕
Without ZoneSync: Drift can push you out of Zone 2
As your heart rate gradually rises, staying in range often means checking the numbers and manually lowering speed or incline. Even experienced users can miss it when they’re focused on the workout, the screen, or the rest of their day.
✓
With ZoneSync: Adjusted Before It Feels Harder
ZoneSync reads the trend before drift becomes a problem and smoothly reduces speed or incline — gentle enough that you won't feel the change, effective enough that your HR stays in the zone.
What It Feels Like
You Walk. It Does the Steering.
A true Zone 2 session should feel steady, controlled, and almost effortless to manage. ZoneSync keeps the adjustments in the background, so you can stay focused on the walk, the screen, or your recovery.
Manual Zone 2
✕
Check your heart rate again and again
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Manually lower speed or incline when drift appears
✕
Speed back up when your heart rate drops
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Miss drift because it happens slowly
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Spend the session managing the machine
With ZoneSync™
✓
Set your zone once before the session
✓
Speed and incline adjust automatically
✓
Drift is corrected before you'd notice it happening
✓
Adjustments are smooth — no sudden jolts or jumps
✓
Finish the session with more time in zone
ZoneSync™ · Standard on Every T5
Automatic Zone 2. From $1,399.99.
Heart-rate chest strap included. No subscription required.
Under the Hood
How ZoneSync Keeps Your Effort Steady
ZoneSync runs a continuous loop from the moment your session starts. Here's what's happening while you're just walking.
1
Read
Live heart rate from the included chest strap, plus your current speed and incline.
2
Filter
Smooth out motion spikes and signal noise, so ZoneSync responds to the trend, not every blip.
3
Assess
Check whether you’re in Zone 2, approaching the ceiling, or drifting below your target range.
4
Predict
Estimate where your heart rate is heading in the next few moments if nothing changes.
5
Adjust
Make a small speed or incline change to help bring your effort back toward range.
6
Settle
Give your body time to respond before making the next adjustment.
RESPONSE LOGIC
Smart Adjustments. Always in Your Control.
Speed Responds First
ZoneSync adjusts speed first because it changes effort quickly. Incline steps in when speed alone is not enough.
Smooth by Design
Adjustments are intentionally small and gradual, designed to keep the workout steady without sudden jumps.
Always Your Call
ZoneSync assists, but never locks you in. You can override any adjustment instantly and stay in control.
Two Ways to Run It
Your Comfort Level. Your Control.
Use ZoneSync in full auto mode or guided mode. Switch anytime based on how much control you want.
● Auto Mode
Set Your Zone. Let It Adjust.
Select your Zone 2 range, then let ZoneSync handles everything from there. Speed and incline adjust automatically throughout the session. You don't touch a button until you're done.
Best for: longer Zone 2 walks, recovery days, and users who want the easiest way to stay in range.
◎ Guided Mode
Suggestions, Not Commands.
ZoneSync monitors your heart rate and prompts you when to adjust, such as “slow down slightly” or “increase incline.” You decide whether to act.
Best for: experienced runners, interval training, or anyone building a better feel for their own zone.
Paired with ZoneFinder™
ZoneFinder defines your personal range. ZoneSync helps you stay there.
Both standard on every T5. No subscription required.
What ZoneSync Delivers
Every Session. In Your Zone.
The goal is not just another number on screen. It is a steadier Zone 2 session, from warm-up to finish.
Your Zone 2 Range, Held
Continuous speed + incline adjustment to keep your HR inside your ZoneFinder range, for the full session.
Cardiac Drift Managed
The slow HR climb that derails 20-minute+ sessions — detected early, corrected smoothly, before you'd feel it.
Session Summary
Time in Zone 2, average HR, drift pattern — fed back to ZoneFinder to sharpen your zone over time.
Powered by ZoneFinder™
ZoneSync uses the zone Zone Finder built — so as Zone Finder refines your range, ZoneSync gets more accurate automatically.
ZoneSync + Zone Finder · Standard on Every T5
You Set the Zone. It Syncs to You.
ZoneSync and ZoneFinder come standard on every T5, with a chest strap in the box.