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General Info and Specifications
Sensors
Fitbit Inspire HR contains the following sensors and motors:
A MEMS 3-axis accelerometer, which tracks motion patterns
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An optical heart-rate tracker
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Materials
The housing on Inspire HR is plastic. The Inspire HR classic wristband is made of a
premium, comfortable silicone similar to that used in many sport watches, and the
buckle is made of anodized aluminum. While anodized aluminum can contain traces
of nickel, which can cause an allergic reaction in someone with nickel sensitivity, the
amount of nickel in all Fitbit products meets the European Union's stringent Nickel
Directive.
Wireless technology
Inspire HR contains a Bluetooth 4.0 radio transceiver.
Haptic feedback
Inspire HR contains a vibration motor for alarms, goals, notifications, and reminders.
Battery
Inspire HR contains a rechargeable lithium-polymer battery.
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