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FitBit One Wireless Activity & Sleep Tracker

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12 months vendor warranty

$9.95 Delivery on this purchase

FitBit One Wireless Activity & Sleep Tracker

If you want to turn fitness into a lifestyle, the fitbit One™ is for you. For starters, it never rests. During the day, it tracks your steps, distance, calories burned, and stairs climbed. Come nightfall, it measures your sleep quality, helps you learn how to sleep better, and wakes you in the morning. The One™ motivates you to reach your goals by bringing greater fitness into your life - seamlessly, socially, 24 hours a day.

Note: Free membership - includes ability to log and track activity, food, sleep, water, body mass, weight, and more - details inside packaging


Little Device - Lots of Power

Monitor your day with the One™ - this tracker's aim is to empower and encourage you by delivering real-time feedback that helps you be more active. Why not take the stairs instead of the elevator? Or go for a quick walk after lunch? Those steps will add up fast. The One™ tracks Steps Taken, Stairs Climbed, Calories Burned, Hours Slept, Distance Travelled, Quality of Sleep. Powered by Fitbit's leading-edge accelerometer and altimeter, the One™ accurately captures all-day activity that old-school pedometers can't handle. It bases calculations like calories burned on your personal profile - reflecting your stats, not any average Joe's.

Helps You Get Your ZZZs

The One™ doesn't nap, even when you do. Slip it into your wrist band at night, and it'll measure your sleep quality. Once the data syncs, graphs on your dashboard will reveal how long you slept and the number of times you woke up, giving you a sleep quality score. Over time, you can apply what you learn to help you sleep more soundly. The One™ also has a silent wake alarm that gently vibrates to wake you at your desired time, without disturbing your partner.

By Your Side, Day And Night

The One™ is suitably discreet. Wear it comfortably in your pocket, on a belt, or a bra - the silicone clip will keep it secure. Use the sleep wrist band at night. Its rechargeable battery lasts ten to fourteen days before needing a boost. The One™ is also rain, splash, and sweat-proof, allowing you to brave the elements.

Syncs Your Stats For You

The One™ automatically syncs your data to PCs, Macs, many iOS devices and select Android phones. All you need to do is sign up for your free account on and register your device (which you can also do via select smartphones). After that, voilà. Your stats will sync on their own, giving you real-time access to all that outstanding data on your Fitbit dashboard.

Paints A Picture Of Your Health

Fitbit is full of graphs, charts, and tools designed to help you track your progress and understand your health and fitness. The customisable dashboard and mobile app (both free) bring all that digestible data to your fingertips. Knowing how close you are to reaching your goals gives you added incentive to achieve them, sleep better, and aim higher.


  • Display: OLED
  • Control: Push button
  • Modes:
  • Steps
  • Distance
  • Calories burned
  • Floors climbed
  • Flower (grows and shrinks based on your recent activity)
  • Clock
  • Sensors/Motors: MEMS 3-axis accelerometer, altimeter, cylindrical vibration motor
  • Bluetooth Syncing: Yes (via USB sync dongle)
  • Memory: 7 days detailed, 23 days summary
  • Battery Life: 10-14 days
  • Battery Type: Lithium-ion polymer
  • Temperature:
  • Operating: -20°C to 45°C
  • Non-Operating: -30°C to 60°C
  • Relative Humidity: Splash-proof, can be submerged up to 1m
  • Dimensions: (W) 19.3mm x (D) 9.65mm x (H) 48mm
  • Weight: 8g
  • Colour: Black
  • Model: FB103BK
  • Range: One™
  • Brand: fitbit

Package Contents

  • 1 x The One™ Tracker
  • 1 x Silicone and Metal Clip
  • 1 x Wireless Sync Dongle
  • 1 x Charging Cord
  • 1 x Sleep Wrist Band
  • 1 x Quick Start Guide

GST Note: GST is included in the price of this item. GST is included in the freight.

Customer Reviews

Delivery / Returns


Delivery time frames will depend on your location, please check the shipping calculator to see an estimate of when you can typically expect to receive your goods based on your postcode.

We will send you an email notifying you as soon as your items have left our warehouse. In this email, you will find the name of the courier company and the consignment note number of your item as well as information on tracking the delivery of your item online. Simply follow the link and enter your reference number. You will then be able to quickly and efficiently track the delivery status of your item!

Please Note: Your goods will be delivered to your registered address. We do deliver Australia wide except for a few remote territories, please check the shipping calculator to confirm delivery availability and timeframes.

Returns Policy

At Grays we want you to have a great shopping experience. When you purchase a product from Grays and you find that it’s not what you wanted , contact us within 7 days and you can return it to us - no questions asked!

Click here for further information.

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