Timeline screen

• What is the Timeline
• How to navigate the Timeline screen
  • Explore key metrics
    • Reactivity Monitor (lightning icon)
    • Heart Rate (heart icon)
    • Steps (shoe icon)
    • Motion (circle icon – iOS only)
• Helpful icons and features
  • Date colors
  • Info (i) icon
  • 3H / 12H view
  • Logged events
• Add entries with the “+” icon
• Interacting with logged icons in the Timeline
  • Activities
  • Sleep
  • Check-ins

What is the Timeline

The Timeline shows how your data changes throughout the day and over time. It helps you understand patterns in your body’s responses by displaying your physiological data alongside logged activities, sleep, and check-ins.

How to navigate the Timeline screen

To access the Timeline, open the Polsen app and tap Timeline (the second tab at the bottom of the screen).

Each metric is displayed as a separate graph. Use the icons below (lightning, heart, steps, and motion) to switch between them.

Explore key metrics

Learn the details about each metric displayed below by accessing this page, or keep reading for a quicker overview.

Reactivity Monitor (lightning icon)

Shows how reactive your body is over time, including balanced states, physical activity, recovery, stress responses, and lower or higher reactivity periods. 

Learn more about the Reactivity Monitor in this article.

Heart Rate (heart icon)

Displays your heart rate in beats per minute across the day and over longer periods.

Learn more about Heart Rate in this article.

Steps (shoe icon)

Tracks your steps in half-hour intervals, as well as your total daily step count.

Learn more about Steps in this article.

Motion (circle icon – iOS only)

Shows your movement intensity (rest, light, mild, moderate, and vigorous) across each hour and day.

Learn more about Motion in this article.

Helpful icons and features

Date colors

At the top of the screen, dates may appear color-coded based on your response to the daily “How was your day?” question, reflecting how you felt that day.

Info (i) icon

Each metric includes an info (i) icon. Tap it to learn what the metric represents and how to read the graph.

3H / 12H view

Use the 3-hour (3H) or 12-hour (12H) buttons to switch between shorter or longer time windows.

Logged or automatically detected events

Icons at the top of each graph show what you logged manually or what was automatically detected by the watch:

• Moon: Sleep

• Human or objects: Activities

• Bubble: Check-ins

These icons help you connect your experiences with your physiological data.

• Walking, cycling, and running are automatically detected. Other activities must be logged manually.

• Automatically detected activities appear as white icons without fill. 

• Automatically detected sleep appears as a green moon icon.

Add entries with the “+” icon

Hover over a specific moment on any graph to reveal the “+” icon, which lets you log:

• A Check-in

• An Activity

• Sleep

Interacting with logged icons in the Timeline

Activities

• Non–color-filled activity icon: Tap to confirm or reject an automatically detected activity.

• Color-filled activity icon: Tap to open the Activity Report, where you’ll find detailed heart rate–related insights.

Learn more about Activities in this article.

Sleep

• Moon icon: Tap it to get a quick snapshot of your sleep, edit your Sleep Duration, or access the Sleep Summary by tapping View Summary.

• White lines represent your awakenings.

• Strong green represents your asleep time.

• Light green represents time in bed (not asleep time).

  

Learn more about how to log Sleep manually in this article.

Check-ins

• Non–color-filled Check-in icon: Tap to log how you’re feeling.

• Color-filled Check-in icon: Tap to edit or delete your logged Check-in.

Learn more about Check-ins in this article.