The One™ comes in two colors:

Black
Burgundy

There's an OLED (organic light-emitting diode) display on each model.

BURGUNDY
BLACK

Controls & Display

PUSH BUTTON CONTROL

Just press the button on the device face to change the display.
Each push cycles through one of six modes:

Steps
Distance
Calories burned
Floors climbed
Flower (grows and shrinks based on your recent activity)
Clock

Wireless sync to PC & Mac

Fitbit's trackers are the first all day activity trackers to offer Bluetooth Smart connectivity, so you see your stats in real-time.

Syncing occurs automatically any time the One™ is within about 20 feet of the wireless sync dongle and is relatively motionless. The dongle plugs into your Mac or PC’s USB port. Syncing and uploading require use of the Fitbit uploader application.

Wireless sync to mobile

Syncing One™ to your smartphone or tablet requires Bluetooth 4.0/Bluetooth Smart compatibility. This is currently available on:

iPhone 4S, 5
iPad 3, Retina
iPad mini
iPod touch, 5th generation
Samsung Galaxy S4
Samsung Galaxy S III
Samsung Galaxy Note II
Samsung Galaxy Note 10.1

For more information visit: http://www.fitbit.com/devices

The Fitbit mobile app works with all smartphones for logging data, receiving notifications, and viewing graphs and charts based on your last sync.

Memory

We recommend syncing your data regularly. As long as the One™ has minimum battery power, it tracks up to seven days of detailed, minute-by-minute data. For the preceding 23 days, it summarizes your daily calories, distance, floors climbed, and steps taken.

Batteries & Power

The One™ battery indicator will appear when it's plugged into the charging cord. The battery lasts a minimum of five days. You can charge it periodically with the provided battery charger, which plugs into your computer’s USB drive.

BATTERY LIFE	5-7 days
BATTERY TYPE	Lithium-ion polymer
RADIO TRANSCEIVER (FOR WIRELESS SYNC)	Bluetooth Smart

lithium-ion
polymer
battery

PC & Mac requirements

Windows XP/Vista/7/8
USB port
Internet connection

Mac OS X 10.5 and up
USB port
Internet connection

Browsers supported

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

Sensors & Motors

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

Environmental requirements

The One™ is not waterproof. 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)
RELATIVE HUMIDITY	Device is splash-proof, and should not be submerged more than one meter.
MAXIMUM OPERATING ALTITUDE	30,000 feet (9,144 m)

Size & Weight

HEIGHT	1.89 inches (48mm)
WIDTH	0.76 inch (19.3 mm)
DEPTH	0.38 inch (9.65 mm)
WEIGHT	0.28 oz. (0.02 lb, 8 grams)