Specifications

DISCLAIMER: SmartSocks® DISCOVERY is still in development. Specifications maybe subject to change.

DISCLAIMER: SmartSocks® DISCOVERY is still in development. Specifications maybe subject to change.

Specifications

Specifications

DISCLAIMER: SmartSocks® DISCOVERY is still in development. Specifications maybe subject to change.

Operating modes

Burst mode
Data is buffered in flash memory and transmitted
over Wi-Fi using the configured transmit interval
(if/when the configured Wi-Fi network is available).

Streaming mode
Data is transmitted in real-time over Bluetooth®
LE (currently unavailable).

Data management

Flash memory
For offline data capture, up to 3 hours (estimated).

2.4GHz Wi-Fi (802.11b/g/n)
For burst transfers at the configured
transmit interval.

Bluetooth® 5.0 (LE)
For real-time streaming (currently unavailable).

Battery

Operating time between charges
Up to 24 hours (depending on configured
transmit interval).

Charging time <3 hours.

Power supply
• Lithium polymer battery, 3.7V 850mAh
• Custom charging base with USB-C port, 5V 500
mA minimum supply

Sensed parameters

Heart rate (HR)/heart rate variability (HRV)

Ο Sensor: photoplethysmography (PPG) with signal    quality classification good/acceptable/bad) using AI
Ο Sample rate: 1-256 Hz (configurable)
Ο Raw PPG data and processed HR and HRV      data    downloadable as a CSV

Inertial measurement – for movement, activity,
falls, gait, balance

Ο Sensor: 3-axis accelerometer & 3-axis gyroscope
Ο Sample rate: 1-256 Hz (configurable)
Ο Sample range: Accelerometer: ±2 to 16 g |    Gyroscope: ±15.2 to 2,000 dps
Ο Sample resolution: Accelerometer: 0.06 to 0.5 mg |    Gyroscope: 0.5 to 61 mdps
Ο Raw accelerometer and gyroscope data and    processed activity data downloadable as a CSV

Temperature

Ο Sensor: infrared thermopile
Ο Sample rate: 1-64 Hz (configurable)
Ο Sample accuracy: 35 to 42 ˚C = ±0.2 ˚C | 15 to 45 ˚C =    ±1 ˚C | -20 to 85 ˚C = ±3 ˚C
Ο Raw temperature data downloadable as a CSV
Ο Sample range: -20 to 85 ˚C
Ο Sample resolution: 0.02 ˚C

Electrodermal activity (EDA)

Ο Electrode placement: medial longitudinal arch
Ο Electrode type: knitted copper
Ο Sample rate: 1-64 Hz (configurable)
Ο Sample range: 0.01-100 μS
Ο Raw electrodermal activity data downloadable as a    CSV

Form Factor

Size (sensor)
49 (l) x 43.5 (w) x 22 (d) mm.

Weight (sensor) 37g

Min/max. ankle circumference (sock)
20/50 cm.

Min/max. foot size (sock)
4/11 UK (37/46 Europe, 6.5/12 US).

Environmental

Temperature range
Operating: 0 to 40 °C | Safe: -20 to 85 °C

Relative humidity 0-100%

Ingress protection IP68