Altra IQ
TECH SPECS 
DescriptionCalled the "running coach in a shoe," the IQ is a new wave of smart running technology, giving you running intelligence while you move.
BatteryReplaceable CR2032 coin cell
RechargeableNo.
Water resistanceDesigned and built for rain, puddles and normal outdoor running.
SensorsRazor Thin Sensor, Quad Accelerometers
Sensors on both feetYes
Other
FUNCTIONS 
Activity trackingRunning cadence, ground contact time, foot strike zone (heel vs. midfoot vs. forefoot), left foot vs. right foot favoring (ground force calculation), foot-specific pressure, pace, time, distance.
Real time dataYes
Other
LINKS 
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Amazon US rating
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