How to Change Heart Rate Zones

Bevel lets you customize your heart rate zones to better match your fitness level and goals. Adjusting these zones ensures your Strain, Recovery, and workout metrics are more accurate and meaningful.

This article explains how to view, edit, and save your heart rate zones in Bevel.

To update your heart rate zones:

1. Open Bevel.

2. Tap your initials or profile picture in the top-right corner.

3. Tap Customization.

4. Tap Heart Rate Zones.

From here, you’ll see your current zones and the method used to determine each level.

You can update zones in two ways:

1. Tap Method.

2. Select a different method to calculate your zones (e.g., standard formulas, custom inputs).

1. Edit the inputs for the selected method, such as your Maximum Heart Rate or other required metrics.

2. Each zone will automatically update based on your new inputs.

Bevel supports multiple methods for calculating heart rate zones. Each method is suited to different training styles and data availability.

Zones are calculated as percentages of your maximum heart rate.

• Common and widely used method

• Best if you know your true max HR (from testing or hard efforts)

• Simple and effective for general training

Zones are calculated using your heart rate reserve (Max HR − Resting HR).

• Incorporates your daily resting heart rate baselines

• Produces more personalized zones than Max HR alone

• Useful if your resting heart rate is reliably tracked

Zones are calculated based on your lactate threshold heart rate (LTHR).

• Ideal for endurance athletes (running, cycling, triathlon)

• Best used if you have tested or accurately estimated your LTHR

• Aligns closely with performance-based training zones

Zones are fully customized and set manually.

• Ideal if you work with a coach or follow a specific training plan

• Useful when you already know your preferred zone ranges

• No automatic adjustments are applied

Once you’ve made your adjustments:

1. Tap Save in the top-right corner.

2. Choose whether to apply Heart Rate Zones to:

• All Data

• Future Data Only

When saving heart rate zone changes, Bevel gives you control over how those changes affect your data.

Your new heart rate zones will be applied to your entire history.

• Bevel will recalculate past Strain, Cardio Load, and workout metrics

• Historical values may change significantly

When to choose this

• Your previous zones were clearly incorrect

• You just learned your true Max HR or LTHR

• You want historical data to be consistent with your current training model

Your new heart rate zones will only affect new workouts and metrics going forward.

• Past Strain and Cardio Load values remain unchanged

• Historical Trends stay intact

When to choose this

• You are fine with your historical data as-is

• You’re making a small adjustment

• You want a clean breakpoint between old and new training approaches

Your new heart rate zones will now be used for Strain, Cardio Load, and workout calculations throughout Bevel.