Health on Pebble is designed to stay out of your way. You wear your watch, the watch records what it sees, and the data shows up in the mobile app whenever you want to look at it. There is nothing to open, start, or log for day-to-day tracking. The watch's multi-week battery life is part of the point: you can keep it on around the clock, including overnight, without having to think about charging.

Three things get tracked automatically:

Beyond passive tracking, the watch can automatically detect when you go on a walk or a run and record it as an activity session. If you want to log something more deliberately (a gym session, a hike, a bike ride), there is a separate Workout app on the watch that lets you start and end a workout manually. The Workout app supports Walk, Run, and a generic "Workout" type for anything else. Workouts you log there will use continuous heart-rate sampling on Pebble Time 2 and show up alongside your auto-detected sessions in the Health tab.

All of this data lives on your watch and on your phone. Nothing is uploaded anywhere by default. If you want your steps, sleep, heart rate, and workouts to show up in Apple Health (iPhone) or Health Connect (Android), you can turn on the platform sync toggle in Health Settings. That is a one-way push from Pebble out to your phone's health platform, and it only happens after you grant permission.

The Health tab is where you see your data: steps, sleep, and (on Pebble Time 2) heart rate. Everything on this tab is read-only. It visualizes what your watch has already recorded. Enable this by tapping "Show Health Tab" in Settings → Health.

This card covers everything the watch tracks from the accelerometer: steps, the distance and calories estimated from those steps, time spent active, and any walks or runs the watch detected automatically.

The main number is your step count for the selected period. Total steps in Day view, daily-average steps in Week and Month view.

"Typical" is your own 30-day rolling average. In Day view it compares against your typical at this hour. In Week and Month view it compares against your typical for the same day-of-week. If you haven't worn the watch for at least 30 days, no Typical comparison is shown.

The chart lets you scrub through the time range. Tapping a bar or point updates the main number to what was recorded at that moment.

Activity sessions (detected walks and runs) are highlighted on the daily chart. Each session shows its type and duration when scrubbed.

Stats row at the bottom:

Sleep is detected from how still you are, based on accelerometer movement. Heart rate is not required, so sleep tracking works on every watch.

How sleep is counted:

The main number is total sleep duration for the period (or daily average in Week and Month view). Deep sleep is shown alongside it.

"Typical" is your own 30-day average sleep duration, used as a comparison baseline.

Stats row at the bottom:

Only appears on Pebble Time 2. Round 2 and 2 Duo do not have a heart-rate sensor, so this card is hidden.

The main number is your most recent heart-rate reading. It falls back to the range's average if there's no current reading, and to -- if there's no data at all. Unit is BPM (beats per minute).

Resting HR is a separate value shown to the side. It's the lowest sustained rate the watch recorded during the period, which serves as a rough fitness indicator and should be reasonably stable day to day. In Week view you can scrub day by day to see how it shifts.

The chart plots your heart rate across the day at 5-minute resolution. Gaps in the line mean the watch didn't take a reading at that time. Readings depend on the Background Sampling setting (explained below) and on whether you were in a detected activity.

HR Zones bar shows minutes spent in each of five heart-rate zones. The zone thresholds are derived from your Age setting, so an inaccurate age makes the zones wrong. The five zones loosely correspond to: warm-up, fat-burn, cardio, threshold, and peak.

How often the watch samples your heart rate, and how aggressively it samples during workouts, is controlled in Health Settings (explained below). More frequent sampling means more accurate data and more battery drain.

Reachable from the Health Settings button at the bottom of the Health tab, or from Watch Settings → Health.

Many settings are hidden until the relevant feature is turned on.

The master switch. When this is off, the watch stops recording any steps, sleep, or heart-rate data, and every other Health setting is hidden. Existing recorded data is not deleted, but nothing new will be collected, and no data will sync to Apple Health or Health Connect.

The most common reason to turn this off is privacy. If you don't want any health data collected at all you should disable this.

Controls whether the watch's optical heart-rate sensor is allowed to run at all. Turning this off stops all heart-rate measurement immediately and hides the heart-rate-specific settings below.

Users may want to turn this off to save battery, or if they don't trust optical heart rate, or if the sensor causes skin irritation under their watch band.

How often the watch checks your heart rate when you are not in a detected workout. More frequent sampling produces a denser heart-rate chart and a more accurate resting HR, but draws more battery.

"Off" disables passive sampling entirely. Heart rate will only be measured during detected activities, and only if HR During Activities is also on. This is the most battery-friendly option for users who only care about heart rate during walks or runs.

When on, the watch switches to continuous (rather than periodic) heart-rate measurement during a detected walk or run. Gives a true continuous trace of effort during the workout, at meaningful battery cost.

If both this and Background Sampling are off, the watch will basically never measure heart rate, and the Heart Rate card will stay empty.

When on, the watch will occasionally push notifications about your activity. For example, recapping your day's steps, congratulating you on hitting a goal, or noting an unusually high or low activity day compared to typical.

Turn this off if you find the notifications intrusive.

Same idea as Activity Insights, but for sleep. The watch will surface notifications about sleep duration, consistency, or comparisons to your typical.

Switches all Health distance and body-measurement displays between metric (km, m, cm, kg) and imperial (mi, ft, in, lb). Affects how the Steps card displays distance, and how Height and Weight are entered below.

This does not affect units elsewhere in the app. System-wide unit preferences live in the watch's main settings.

Used to estimate your stride length, which is then used to convert step count into distance. An accurate height makes the Distance number on the Steps card meaningful. An inaccurate one means the distance is off by roughly the same percentage.

Used in the calorie-burn calculation. Heavier bodies burn more calories doing the same activity, so weight matters more here than it does for distance.

Used to calculate your heart-rate zone thresholds (Zones 1 through 5 on the Heart Rate card). A wrong age means the zones are wrong. Your "cardio" reading might actually be your "fat-burn" reading, or vice versa.

Used by the firmware's resting metabolic rate and heart-rate-zone formulas. The "Other" option uses an averaged formula.

When on, Pebble writes your steps, heart rate, sleep, and workouts into your phone's native health platform. That's Apple Health on iOS, or Health Connect (which other Android apps can read from) on Android.

Turning it on triggers a permissions prompt. If you don't grant the requested permissions, the toggle stays off.

This is one-way. Data flows from Pebble to the health platform. Pebble does not read data from Apple Health or Health Connect.

Forces an immediate sync of any new health data to Apple Health or Health Connect. Useful right after a workout, or if data seems out of date. While syncing, the button is disabled and the description changes to "Syncing…".

Pebble already syncs automatically in the background. This button is for when you want it to happen right now.

Opens the Google Fit app, where Health Connect data is most commonly viewed. This is a shortcut, not a separate sync. Google Fit reads the same data the toggle above writes.

Replaces the Notifications tab in the bottom bar with the Health tab. By default the bottom bar shows Notifications. Users who don't care about reviewing notification history but do care about Health can swap the two.

Notifications history is still available. It's just from a different entry point in the app (Settings → Notifications)

Open the watch's app launcher and select Health. The app launcher is reached from the main watchface screen by pressing the SELECT (middle) button. Also, by default, Health can be accessed by pressing the UP (top right) button from your watchface.

The Health app can also be opened automatically by an Insight notification or a timeline pin (for example, a sleep summary that appears on your timeline after you wake up). Tapping into one of those opens straight into the relevant card.

The Health app shows three cards stacked vertically. Use the UP and DOWN buttons to cycle between them. The default order is Activity → Heart Rate → Sleep.

Shows today's step count as a large number, with a progress bar comparing your current steps against your typical for this time of day. Typical is your own 30-day average.

The progress bar tells you at a glance whether you're ahead of or behind your usual pace:

If you haven't taken any steps yet, the step number is replaced with a dash.

Pressing SELECT opens the Activity detail card, which shows your 30-day step average, distance, calories, and a small bar chart of the last several days with today highlighted.

Shows last night's total sleep time, with a 12-hour clock-style ring visualizing when you slept and when you typically sleep. Regular sleep fills the ring in one color and deep restful sleep in a second color, so you can see how much of the night was deep sleep at a glance.

A yellow "typical" mark on the ring indicates your usual bedtime or wake time, making it easy to see whether you went to bed late or slept in.

If no sleep was recorded for last night, the duration shows as a dash.

Pressing SELECT opens the Sleep detail card, which shows the sleep session timing (when you fell asleep, when you woke up), total versus deep sleep, and a multi-day comparison.

Only appears on watches with heart rate sensors.

Shows your current heart rate in BPM along with an animated pulsing-heart graphic when a fresh reading is being taken. It also shows your resting heart rate and the timestamp of the last reading.

If the watch hasn't taken a reading recently, the BPM number is replaced with a dash. The animation runs for about 30 seconds after you open the card, after which it stops to save battery.

Pressing SELECT opens the Heart Rate detail card, which breaks down your time spent in each of the five heart-rate zones.

Most Health configuration lives in the mobile app (Part 1), but the watch has its own short Health settings menu. It exists so you can adjust the most important options without your phone.

From the watchface: open the app launcher (middle button) select Settings, then select Health.

The watch's Health settings menu is a subset of the mobile app's settings. Anything you change here is immediately reflected on the phone, and vice versa.

The menu shows:

Master switch, same as Enable Health Tracking in the mobile app. When this is set to Off, the rest of the menu is hidden and the watch stops recording new health data.

Controls whether distance is shown in metric or imperial units on the watch (for example, on the Activity detail card and inside the Workout app). This is equivalent to the Imperial Units toggle in the mobile app, but presented as an explicit unit choice rather than a metric/imperial toggle.

Controls how often the watch samples your heart rate when you're not in a workout. This is the watch-side equivalent of the Background Sampling dropdown in the mobile app, with one extra detail: choosing Disabled here turns the heart-rate sensor off entirely, which is equivalent to turning the Heart Rate Monitor toggle off in the mobile app.

Same as HR During Activities in the mobile app. When on, the heart-rate sensor switches to continuous sampling during a detected walk or run.