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Fitbit Surge General Info & Specifications
Sensors and motors
Your Fitbit Surge contains the following sensors and motors:
• A MEMS 3-axis accelerometer, which measures your motion patterns and
determines your steps taken, distance traveled, calories burned, active
minutes, and sleep quality
• An altimeter, which measures floors climbed
• A GPS receiver, which tracks your location during a workout
• A Bluetooth 4.0 radio transceiver
• A vibration motor, which allows the Fitbit Surge to vibrate when alarms go off,
when you reach a goal, when a GPS signal is found, and when you receive call
or text notifications
• An optical heart rate tracker, which measures your BPM at rest and when you
are exercising
• An ambient light sensor, which turns on the backlight in low-light conditions
• A 3-axis gyroscope
• A 3-axis magnetometer
Battery
Fitbit Surge contains a rechargeable lithium-polymer battery. For information about
battery life, see “Battery life and charging” on page 12.
Memory
Fitbit Surge holds detailed minute-by-minute information for the most recent 7 days,
and 30 days of daily summaries. Heart rate data is stored at one-second intervals
during exercise tracking and at five-second intervals at all other times.
Your recorded data consists of steps taken, distance traveled, calories burned, floors
climbed, active minutes, heart rate, and sleep tracked.
Sync your Fitbit Surge regularly to have the most detailed data available to view on
your fitbit.com dashboard.
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