General Info and Specifications
Sensors
Fitbit Alta HR contains the following sensors and motors:
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A MEMS 3-axis accelerometer, which tracks motion patterns
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A vibration motor
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An optical heart-rate tracker
Materials
The band that comes with Alta HR is made of a flexible, durable elastomer material
similar to that used in many sports watches. It does not contain latex. Accessory
bands are available in genuine leather.
The clasp and housing on Alta HR are made of surgical-grade stainless steel. While
all stainless steel contains traces of nickel and 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
Alta HR contains a Bluetooth 4.0 radio transceiver.
Haptic feedback
Alta HR contains a vibration motor for alarms, goals, notifications, and reminders.
Battery
Alta HR contains a rechargeable lithium-polymer battery.
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