General Info and Specifications
Sensors
Fitbit Ionic contains the following sensors and motors:
A MEMS 3-axis accelerometer, which tracks motion patterns
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An altimeter, which tracks altitude changes
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A GPS receiver with GLONASS, which tracks your location during a workout
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An optical heart-rate tracker
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An ambient light sensor
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A vibration motor
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Materials
The housing and buckle on Ionic are 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.
The wristband that comes with Ionic is made of a flexible, durable elastomer
material similar to that used in many sports watches. It doesn't contain latex.
Accessory wristbands are available in genuine leather.
Wireless technology
Ionic contains a Bluetooth 4.0 radio receiver, Wi-Fi chip, and NFC chip.
Haptic feedback
Ionic contains a vibration motor for alarms, goals, notifications, reminders, and apps.
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