Skip to content
English - United States
Contact us
  • There are no suggestions because the search field is empty.

Firstbeat Sports Sensor technical specifications

The Firstbeat Sports Sensor is a heart rate sensor with built-in memory and an embedded processor, so coaches do not need a receiver or a laptop during sessions.

Compatibility

  • Full features are available only with the Firstbeat Sports: Coach app and the Firstbeat Sports: Athlete app.
  • The Sensor also works as a standard Bluetooth device with watches and other mobile apps.

Technical specifications

  • Memory capacity: about 12–16 hours of measurements, depending on the exercise intensity. Download the Sensors after every session. When the memory is full, downloads can fail and older data can be overwritten.
  • Battery: user-replaceable CR2025 coin cell battery. Use only CR2025 batteries.
  • Battery life: 160 hours.
  • Weight: 9.4 g (0.33 oz) including the battery.
  • Transmission protocol: Bluetooth Smart, Dual Bluetooth.
  • R-R recording accuracy: less than 2 ms. An R-R interval is the time between consecutive heartbeats.
  • Motion sensor: 9-axis motion sensor (accelerometer, gyroscope and magnetometer).
  • Firmware update: wireless.
  • Wearing options: textile strap (Movesense connector) and Heart Rate Vest.
  • Water resistance: 30 m (100 ft). The Sensor can be used for swimming. Heart rate is recorded normally, but real-time data is not available in the water because water blocks the Bluetooth signal. Download the data after the session.

How the Sensor records

  • The Sensor starts and stops recording automatically when the Sensor detects or loses R-R data.
  • Each Sensor is paired with an athlete profile and stores the athlete's background information for real-time analysis.
  • After the Sensor stops recording, the Sensor stays in standby mode for 13 minutes and then moves to power save mode.
  • After the data is downloaded, the Sensor stays in standby mode for 30 seconds and then moves to power save mode.
  • Downloading works in both modes, but in power save mode the apps may take longer to find the Sensor.

Real-time training metrics

  • Heart rate (HR), average HR, lowest HR, peak HR and percentage of maximum heart rate (%HRmax)
  • Time in heart rate zones
  • Excess post-exercise oxygen consumption (EPOC)
  • Training impulse (TRIMP) and TRIMP per minute (TRIMP/min)
  • Training Effect (aerobic and anaerobic) and calories
  • Movement Load (ML) and Movement Intensity (ML/min), which require Sports Premium or Sports Premium+

Need more help? Ask the Customer Agent chat on this page or email support@firstbeat.com.