CalmTrade Biometrics integrates data from Apple Watch, Apple HealthKit, and Polar (H10/Polar 360) to give traders real-time insights into stress, recovery, and performance readiness. Track heart rate, sleep, activity, and HRV—including RMSSD and SDNN—to better understand when your body is primed for focus and consistency.

Biometrics for Traders

The image shows a black wearable fitness tracker with a fabric strap and a rectangular digital display on the underside, featuring sensors and LED indicators. The device is labeled "Polar 360."

What can Polar 360 do for trading performance?

Polar 360 helps capture day-to-day biometric signals—like heart rate, HRV, activity, and sleep—so CalmTrade can translate them into practical insights for stress, recovery, and performance readiness.

Live Biometrics Time-Lapse (100×)
A 1-hour + session from Polar 360, accelerated 100× (42s playback), showing how HR/HRV shifts translate into CalmScore changes.

Purple heart icon with the text 'Heart Rate Variability' in purple

HRV is derived from inter-beat interval (IBI) data and displayed as SDNN and RMSSD in the app.

HRV metrics like RMSSD and SDNN can reflect how well your body is recovering and adapting to stress. CalmTrade uses HRV alongside heart rate, sleep, and activity to help traders recognize when they’re primed for performance—or when stress and fatigue may be affecting focus and risk tolerance.

Optical heart rate uses light to measure real-time data and insights on the heart's activity.

A heart icon with a line graph and the words 'Heart Rate'

Polar 360 uses Polar Precision Prime™ sensor fusion technology to track heart rate from the wrist. The innovation combines optical heart rate measurement with other sensor technologies to rule out motion artifacts that might disturb the heart rate signal and produce unreliable readings.

Automatic assessment of sleep quality, duration, and time spent in each sleep stage overnight.

Icon of a person sleeping in a bed with the text 'Sleep Cycle'

Polar 360 automatically tracks the amount and quality of sleep and shows how long was spent in each sleep stage. It gathers sleep time and sleep quality components into one easily glanceable value, and compares it to the indicators of a good night’s sleep based on the current sleep science.

Why biometrics matter for traders

Trading performance isn’t just strategy—it’s physiology. Stress, poor sleep, and under-recovery can quietly affect focus, impulse control, and risk tolerance. CalmTrade Biometrics helps you connect how you feel to what your body is signaling through heart rate and HRV (RMSSD, SDNN), plus sleep and activity trends. When you can see patterns—like lower HRV after late nights, elevated heart rate during volatile sessions, or reduced recovery after long screen time—you can adjust before it shows up in your P&L. Biometrics turn “I’m off today” into measurable signals you can act on: recovery routines, smarter position sizing, breaks, or choosing lower-stress setups.

Polar 360 uses wrist-based optical heart rate with Polar Precision Prime™ sensor fusion designed to reduce motion artifacts
Core signals include heart rate, HRV, daily activity, and sleep (including sleep quality and stages) to inform stress, recovery, and readiness.
No. CalmTrade supports Apple Watch and also supports Polar devices like Polar H10 and Polar 360.
Yes—CalmTrade Biometrics integrates with Apple HealthKit / Apple Health to support trader-focused insights.
CalmTrade supports Polar devices including Polar H10 and Polar 360, using IBI-derived HRV (SDNN and RMSSD).
RMSSD is commonly used to reflect short-term HRV changes (often tied to recovery and parasympathetic activity), while SDNN summarizes overall HRV over a time window. CalmTrade tracks both to help you understand stress and recovery trends.