Base Watch · Demo dataZone 2 on Apple Watch, made clearer.
Find your heart-rate zones, understand the estimates, and see how a workout becomes part of your week.
Read the guideZONE 2 GUIDES FROM BASE
Less guesswork. A steadier week.
Practical guides to heart-rate zones, everyday cardio, and the evidence behind it all.
How we write our guides01 / Apple Watch
Get to know the numbers on your wrist.
02 / Getting started
Practical ways to make zone 2 part of your week.

Walking, cycling, easy jogging: six activities to explore, with effort—not equipment—as your guide.
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A practical approach to speed and incline, without a one-size-fits-all setting.
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It can be. Here’s why your effort matters more than the name of the activity.
Read the guideThe Galpin conversation, the activity guidelines, and making room for a steady aerobic habit.
Read the guideA simple planning worksheet for fitting movement around the life you actually have.
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Slowing down or taking a walking break can be a useful adjustment, not a failed run.
Read the guide03 / Benefits & evidence
Aerobic fitness, energy systems and healthy aging. Follow the science behind the habit.
MEET YOUR WEEKLY COMPANION
Base brings your recorded zone 2 workouts into one weekly view. On the App Store for iPhone and Apple Watch.
Explore Base Read why we built Base