Fitbit Surge Manual download pdf (Page 38)

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 monitor, 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. For information about

battery life, see ”Battery life and charging ” on page 11.

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.

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Fitbit Surge Manual Page 38