Fitbit Surge - Manual (Page 38)

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Fitbit Surge General Info & Specifications
Sensors and motors
Your 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 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
Surge contains a rechargeable lithium-polymer battery.
Memory
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 Surge regularly to have the most detailed data available to view on your
fitbit.com dashboard.
Display
The Surge display is a touch screen, monochrome LCD with backlight for low-light
visibility.