Health band

Specifications

Accessories

Accessories

Charger / user manual	Charging cradle with USB connector; 5 V DC and 250 mA

Battery

Battery

Battery type	3.7 V 90 mAh built-in rechargeable li-polymer battery
Typical battery life	3 days
Recharge time	90 minutes to full charge

Communications

Communications

Bluetooth	Low energy Bluetooth
Communication range	Approximately 2 meters (6 feet)
Mobile devices	Tested on devices from leading mobile manufacturers

Dimensions

Dimensions

Size	Approx. 200mm x 24mm (small); Approx. 230mm x 24mm (large) Enclosure Height: 11mm; Strap Height: 3mm
Weight	Approx. 25 g / 0.9 oz

Display

Display

Display	Monochrome matrix display

Environmental attributes

Environmental attributes

Moisture protection rating	IPX5/IPX7 (Health band); IP21 (charging cradle)
Storage/transportation	Temp -20 °C / -4 °F to 60 °C / 140 °F; Relative humidity: < 93% Atmos pressure:700hPa to 1060hPa

Memory

Memory

Memory size	4 MB
Monitoring capacity	7 days before rewriting

Recording

Recording

Data output	60-second epoch; 30-second epoch for sleep/wake; aggregated per period
Off-wrist detection	Through pulse rate detected via photopletysmography (PPG)
Recording time	Continuous recording excluding charging time and off wrist periods

Sensors (Accelerometer and PPG)

Sensors (Accelerometer and PPG)

Accelerometer dynamic range	+/- 8g
Accelerometer sampling rate	16 Hz
Accelerometer RMS noise	<2.1 mg
PPG frequency	525 nm for both LEDs
PPG sampling rate	32 Hz
PPG sensor	Optical Heart rate sensor (2 LEDs equally distributed on a single axis, centers aligned)
Accelerometer	MEMS 3 axis (x,y,z)

Accessories

Accessories

Charger / user manual	Charging cradle with USB connector; 5 V DC and 250 mA

Battery

Battery

Battery type	3.7 V 90 mAh built-in rechargeable li-polymer battery
Typical battery life	3 days

See all specifications

Accessories

Accessories

Charger / user manual	Charging cradle with USB connector; 5 V DC and 250 mA

Battery

Battery

Battery type	3.7 V 90 mAh built-in rechargeable li-polymer battery
Typical battery life	3 days
Recharge time	90 minutes to full charge

Communications

Communications

Bluetooth	Low energy Bluetooth
Communication range	Approximately 2 meters (6 feet)
Mobile devices	Tested on devices from leading mobile manufacturers

Dimensions

Dimensions

Size	Approx. 200mm x 24mm (small); Approx. 230mm x 24mm (large) Enclosure Height: 11mm; Strap Height: 3mm
Weight	Approx. 25 g / 0.9 oz

Display

Display

Display	Monochrome matrix display

Environmental attributes

Environmental attributes

Moisture protection rating	IPX5/IPX7 (Health band); IP21 (charging cradle)
Storage/transportation	Temp -20 °C / -4 °F to 60 °C / 140 °F; Relative humidity: < 93% Atmos pressure:700hPa to 1060hPa

Memory

Memory

Memory size	4 MB
Monitoring capacity	7 days before rewriting

Recording

Recording

Data output	60-second epoch; 30-second epoch for sleep/wake; aggregated per period
Off-wrist detection	Through pulse rate detected via photopletysmography (PPG)
Recording time	Continuous recording excluding charging time and off wrist periods

Sensors (Accelerometer and PPG)

Sensors (Accelerometer and PPG)

Accelerometer dynamic range	+/- 8g
Accelerometer sampling rate	16 Hz
Accelerometer RMS noise	<2.1 mg
PPG frequency	525 nm for both LEDs
PPG sampling rate	32 Hz
PPG sensor	Optical Heart rate sensor (2 LEDs equally distributed on a single axis, centers aligned)
Accelerometer	MEMS 3 axis (x,y,z)