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The engineering behind SafeStep's 11 safety systems.
SafeStep integrates 29 distinct sensor inputs, polled at 100Hz and fused by the on-device Bayesian engine into a single real-time safety score. No single sensor triggers an alert — all decisions require multi-sensor consensus to minimize false positives.
Accelerometer
±16g, 3-axis, 1000Hz
Gyroscope
±2000°/s, 3-axis
PPG Heart Rate
±2 BPM, continuous
BIA Hydration
Bioimpedance, ±3%
NIR Hydration
Near-infrared spectroscopy
Skin Temp
±0.1°C, contact
Ambient Temp
±0.1°C, air
Moisture Grid
8-point conductivity
Barometric
±0.1 hPa, altitude
Fingerprint
500 DPI capacitive, 256-point
MEMS Mic ×2
Dual array, directional
UV Sensor
UVA + UVB index
Ambient Light
Lux + color temp
Magnetometer
3-axis compass
GSR Electrodes
Galvanic skin response
+14 more
environmental & biometric
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