Actiwatch Spectrum Activity monitor

Actiwatch Spectrum

Activity monitor

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Actiwatch Spectrum is equipped with advanced features needed for when you are involved in more demanding research protocols. It is an all-in-one, waterproof device, and ideal for those who prefer to wear a wrist watch.

Sleep/wake history || Full-featured

Sleep/wake history reliably tracks sleep

Actiwatch models use actigraphy principles to provide sleep schedule variability, sleep quantity, and sleep quality statistics so you can better identify therapeutic options and understand how your patients respond to treatment.
Off-wrist detection || Comfortable and convenient

Off-wrist detection for more reliable data

Should a user remove the device during the study, Actiwatch Spectrum records when it has been removed and for how long.
Physical activity monitor || Full-featured

Physical activity monitor for quantifiable activity data

Each Actiwatch model is equipped with a highly sensitive accelerometer.
Waterproof to IPX7 standards

Waterproof to IPX7 standards for freedom to plan your day

Waterproof to IPX7 standards for freedom to plan your day
Event marker

Event marker records events of significance

Event marker records events of significance
Time/date display || Comfortable and convenient

Time/date display for users who prefer a wrist watch

Actiwatch Spectrum has the features of a wrist watch, which makes it an all-in-one device.
Colored light sensor || Full-featured

Colored light sensor for full light exposure profile

Actiwatch Spectrum is equipped with three color light sensors that provide irradiance and luminous flux recordings in three color bands of the visible spectrum: red, green, and blue.
Status indicator || Comfortable and convenient

Status indicator for real-time insight

The device status indicator shows when the Actiwatch Spectrum is logging, not logging, on wrist, off wrist, and when it has successfully marked an event. Real-time insight for users.


Accelerometer Details
Accelerometer Details
  • 0.35 - 7.5 Hz typical
  • Solid-state "Piezo-electric" accelerometer
  • 0.5 - 2 G peak value
  • 0.025 G (a 2 count level)
Sampling Rate
  • 32 Hz
  • 48 mm x 37 mm x 14 mm
  • 30 grams (with band)
Case Material
  • ABS Blend (Biocompatible)
Standard Wrist Band
  • BASF Elastollan 1175A10W (TPU) with titanium buckle
Battery Type
  • CR 2430 Lithium Coin Cell (factory replaced)
Logger Battery Life
  • 8 months with continuous use
  • Non-volatile 1 Mbits
Light Sensor Details
Light Sensor Details
  • Color sensitive photodiodes
  • 10% at 1500 Lux (typical)
Measurement Units
  • Irradiance (microwatts/cm2)/Photon flux (photons/cm2/sec)/Photopic Illuminance (Lux)
Wavelength Range
  • 400 - 700 nm
Illuminance Range
  • 0.1 - 5500 microwatts/cm2
Environmental Attributes
Environmental Attributes
Moisture Protection
  • Waterproof 1 m for 30 min per IPX7 IEC 60529
Operating Temperature Range
  • 5 to 40 °C
  • Resists dust, water, heat, perspiration and cold
Off-Wrist Detector
Off-Wrist Detector
  • Capacitive
On-Wrist Activation Range
  • < 2 mm
Computer & Communications Dock Attributes
Computer & Communications Dock Attributes
Operating System Compatibility
  • Actiware: Windows 2000, Windows XP or Windows Vista; Actiware CT: Windows 2000, Windows XP Pro, Windows Vista Business or Vista Ultimate
Hardware Platform Personal Computer
  • Pentium II or later
Communications Interface
  • USB to Infrared connection
USB Compatibility
  • Version 1.1 or 2.0 full speed
Data Communication Rates
  • 57.6 kbps