Today report
Bring steps, active hours, heart rate, sleep, oxygen, HRV, and breathing into one daily overview. Open individual metrics to explore the readings and trends behind your day.
Google Health API · Beta preview
Your watch data.
A deeper understanding.
The next FitSignals beta brings Google Pixel Watch and Fitbit history into focus through the Google Health API. Explore your patterns with Today and Sleep reports, AI chat and analysis, and 18 focused reports on sleep, recovery, heart rate, and activity.
For Google Pixel Watch and Fitbit. Beta participation details will be shared before testing opens.
Inside the new beta
Start with a report.
Keep asking questions.
The new FitSignals project turns recorded watch data into useful reports. See your day at a glance, explore a night in detail, or ask a question about your history.
Sleep report
Explore nightly sleep stages, bedtimes, wake times, interruptions, and overnight heart rate, oxygen, HRV, and breathing. Rolling 90-day charts put each night in context.
AI chat & analysis
Ask questions in plain language about your recorded data. Explore how your sleep changed this month or how steps relate to next-night sleep, then preview and save AI-generated reports to revisit.
18 focused reports
Real questions.
More ways to explore.
A report library for comparing weeks and months, understanding your sleep, and seeing how your metrics move together.
What changed this month?
Compare recent weeks and months with earlier periods, and see how your readings sit alongside your personal baseline.
Look beyond hours asleep
Explore sleep timing, interruptions, consistency, and catch-up sleep in the context of your own history.
Put recovery in context
Bring overnight HRV, resting heart rate, oxygen, breathing, and sleep together against your personal baselines.
Understand heart-rate patterns
Explore your typical 24-hour heart-rate profile, recent trends, and how resting heart rate changes after recorded cardio.
Find the rhythm in your week
Discover hourly activity patterns, compare weekdays with weekends, and follow progress toward your chosen goals.
Take the longer view
Review monthly trends across up to a year of available history, or prepare a printable or CSV health summary.
Explore all 18 reports
Reviews & personal patterns
- Weekly & Monthly Review
- Personal Baseline & Change Detector
- Cross-Metric Relationship Explorer
- Overnight Vitals & Recovery Context
- Change & Anomaly Timeline
Sleep & overnight analysis
- Sleep Consistency & Circadian Rhythm
- Sleep Continuity & Fragmentation
- Sleep Debt & Catch-Up
- Overnight Oxygen & Breathing Deep Dive
Activity & cardiovascular analysis
- Activity & Heart Rate Timeline
- Activity Rhythm & Sedentary Patterns
- Cardio & Resting Heart Rate Response
- Heart-Rate Profile & Cardiovascular Trends
- Day-of-Week & Weekday/Weekend Patterns
Data quality, planning & sharing
- Data Coverage & Report Confidence
- Long-Term Trends & Seasonality
- Goals, Streaks & Adherence
- Shareable Health Summary
Reports depend on the signals and history your watch has recorded and on Google Health availability. Data coverage helps put results in context. Relationships between metrics show associations, not causes.
How the new beta works
From your watch to your next insight.
The new app connects to your available Google Pixel Watch or Fitbit history through Google Health, starting with your permission.
Connect your Google account
Create a FitSignals account and approve Google Health access to your available watch data.
Bring in your watch history
The app imports available records. Source and sync status show what has arrived and how much history is available.
Follow a question
Start with Today or Sleep, then explore focused reports, personal baselines, and patterns over time.
This describes the new app experience. Beta access and participation details will be shared separately.
The next chapter
From Fitbit to Google Health.
Our first FitSignals beta used the Fitbit Web API. That hosted beta has concluded, and the next chapter is being built around the Google Health API. Thank you to everyone who took part and shared feedback. Read Google's API transition overview.
Earlier beta concluded
The hosted Fitbit beta is no longer running.
New product underway
The new Google Health API project brings together daily reports, sleep analysis, AI chat, and a deeper report library.
Interested in your input
We want to understand the questions, reports, and visualizations that matter to you.
Future beta testing
A new testing phase is planned. A launch date has not been announced.
A look at our earlier work
Small details.
A bigger picture.
Earlier Fitbit beta
These screenshots are from the earlier Fitbit Web API beta. They document our previous work and are not screenshots of the new Google Health API product. Select an image to view it at full size.
Today and Past 90 Days
View key metrics for today and the past 90 days to track recent trends for selected date.
Nightly Sleep Metrics
View detailed nightly sleep data for sleep stage, HRV, SpO2 and heart rate for selected date.
Heart Rate Ranges By Date
View daily heart rate zone ranges for selected date range.
HRV Ranges By Date
View daily heart rate variability ranges for selected date range.
Sleep Stages By Date
View nightly sleep stage ranges for selected date range.
Steps By Date
View daily step counts and daily step max, min, avg and distribution for selected date range.
More views from the earlier beta
- Heart rate by datetime — scatter chart
- Resting heart rate by date — line chart
- SpO2 by datetime — scatter chart
- SpO2 daily average by date — line chart
- Breathing rate by date — line chart
- HRV by datetime — scatter chart
- HRV daily average by date — line chart
- Sleep by datetime — vertical bar chart
- Sleep stages — absolute bar chart
- Steps by date and hour — today chart
- Steps by date and hour — daily chart
Stay in touch
Interested in the next FitSignals beta?
We are actively looking for people to join our beta. To join the waitlist or ask a question, contact
[email protected]Before you take part
Details about participation, data access, and privacy will be provided before the next beta opens. This page does not connect to your Fitbit or Google Health account.