Just press the button on the side of the device to change the display.
Each button press cycles through one of seven screens.



small 5.5 - 6.9 inches (140 - 176 mm)
large 6.3 - 8.2 inches (161 - 209 mm)
width 0.76 inches (19.2 mm)



Force will keep your detailed, minute-by-minute data from the last week,
as well as daily totals for the past 30 days as long as it has battery power.
Sync your data regularly to your computer or smartphone for a clearer picture
of your fitness trends over time.

Battery & Power

The Force battery indicator will appear when it's plugged into the charging cable.
The battery lasts a minimum of seven days. You can charge it with the provided
battery charger, which plugs into your computer's USB drive.

battery life 7-10 days
battery type Lithium-ion polymer
(for wireless sync)
Bluetooth 4.0

Environmental Requirements

Force is water resistant. It shouldn't be worn while swimming.
It is, however, rain, splash, and sweat-proof.

operating temperature -4° to 113° F (-20° to 45° C)
non-operating temperature -22° to 140° F (-30° to 60° C)
water-resistant Relative humidity: Device is
splash proof, and should not be
submerged more than one meter.
max operating altitude 30,000 feet (9,144 m)

Sensors & Motors

Force uses a MEMS 3-axis accelerometer that measures your motion patterns
to determine your calories burned, stairs climbed, distance traveled, steps taken,
and sleep quality. Its altimeter also measures floors climbed. The Force also
contains a cylindrical vibration motor, which allows it to vibrate when alarms are
set to go off.


PC & Mac Requirements

windows xp/vista/7/8 mac osx 10.5 and up
USB port USB port
Internet connection Internet connection

Wireless sync to PC & Mac

Fitbit trackers are the first all day activity trackers to offer Bluetooth 4.0 connectivity,
delivering real-time stats to your smartphone or computer without you doing a thing.
Syncing occurs automatically any time Force is within about 20 feet of the wireless
sync dongle and relatively motionless. The dongle plugs into your Mac or PC's USB port.

Syncing and uploading require use of the free Fitbit Connect application.


Wireless sync to mobile

Syncing Forceā„¢ to your smartphone or tablet requires Bluetooth 4.0.
This allows your Force to sync wirelessly and automatically with a wide
range of leading iOS and Android Smartphones.

For a full list of supported devices, visit: http://www.fitbit.com/devices

If your phone does not support Bluetooth 4.0, you're still in luck.
The Fitbit mobile app works with all smartphones for logging data,
receiving notifications, and viewing graphs and charts based on your last sync.


Supported Browsers

pc browsers mac browsers
chrome 12 and up 12 and up
firefox 3.6.18 and up 3.6.18 and up
internet explorer 8 and up /
safari / 5.0.5 and up