FitBit One - Charcoal

Discontinued  - not available for purchase
Powered by Fitbits leading-edge accelerometer and altimeter, the One accurately captures all-day activity that old-school pedometers can't handle.
  • Mobile Fun ID 38745
  • Brand Fitbit
  • Fitbit

Was £80.00 - you save 13%

£69.99 inc. VAT
Discontinued  - not available for purchase We are sorry, but this item is no longer available for sale. Please make sure you explore our impressive range on Mobile Fun to find an alternative that will suit your requirements. You can also contact our Customer Services team for help in finding a suitable item.


Why Buy?

  • Helps you monitor your sleep patterns
  • Easily clips to your clothing for any activity
  • Syncs all your stats
  • Paints a picture of your health
  • Log activities, meals and more
  • Tune into other apps to track your health

Helps you monitor your sleep patterns 

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

FitBit One - Charcoal

Easily clips to your clothing for any activity

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 five to seven days before needing a boost. The One is also rain, splash and sweat-proof - allowing you to brave the elements.

FitBit One - Charcoal

Syncs all your stats for you*

The One automatically syncs your data to PCs, Macs, the iPhone 4S+, the 3rd generation iPad and above, iPod Touch 5G, and select Android and Windows Phone handsets. 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.


*PLEASE NOTE: Fitbit is the first connected device to offer both Bluetooth 4.0 syncing to select iOS, Android and Windows Phone devices. Syncing is available on all iOS devices after the iPhone 4S. For Android, while many phones have a Bluetooth 4.0 chip, not all are able to be accessed by apps like Fitbit. Fitbit is working closely with phone manufacturers to try to develop syncing capabilities for more phones. Windows Phone app requires Windows Phone 8.1 and Bluetooth 4.0 LE or later. Please check here to see the latest devices with sync support.


FitBit One - Charcoal

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.

Log activities, meals and more

Log your food, water, workouts, weight, and more using Fitbit’s online tools. If you’re on the move, use the mobile app to do the same. Fitbit's expansive database covers food and activities, which makes logging your info quick and easy. Create a Food Plan to eat smarter. Log an infinite number of activities, from walking the dog to swimming laps. Before you know it, you’ll have a complete picture of your progress.

FitBit One - Charcoal

Tune into other apps to track your health  

To further track your health, you can export your Fitbit data to several popular fitness apps. Some of them – including SparkPeople, Lose It!, MyFitnessPal, and MapMyFITNESS.


Technical Specifications:

  • Width 0.76 inch (19.3 mm)
  • Depth 0.38 inch (9.65 mm)
  • Weight 0.28 oz. (0.02 lb, 8 grams)
  • Height 1.89 inches (48mm)
  • Battery Life 5-7 days 
  • Battery Type Lithium-ion polymer
  • PC requirements: Windows XP/Vista/7/8
  • Mac requirements: Mac OS X 10.5 and up 


What's in the box?

  • The One tracker
  • Silicone and metal clip
  • Wireless USB dongle
  • Charging cord
  • Sleep wrist band
  • Free membership

Key Details

Part No B009ATKK16
Colour Black

Delivery options

Royal Mail Economy: £2.19

Royal Mail’s reliable economy postal service aims to deliver within 2-3 working days including Saturdays but may take longer. We guarantee to dispatch in-stock items on the same day (Monday to Friday) if you order before 6pm.*

*Please note orders for batteries and power banks may be subject to delays due to dangerous goods shipping requirements.

DPD Next Day Parcel: £6.99

DPD Next Day Parcel guarantees next working day delivery and will take two days for the Northern Highlands, Northern Ireland and other distant areas. For DPD deliveries, we guarantee to dispatch in-stock items on the same day (Monday to Friday) if you order before 6pm.*

provides a comprehensive tracking system, including a live driver tracker and a 1 hour delivery window. *Delivery

*Please note orders for batteries and power banks may be subject to delays due to dangerous goods shipping requirements.

DHL Global Mail: £3.50

A low cost, reliable international posting service, suitable for your less urgent orders. This service is untracked and is usually delivered within 4-8 working days, or up to 20 working days (depending on location).

DHL International Air Express: From £11.95

Order before 6pm UK time for a fast, secure and reliable worldwide delivery. Your item will receive priority handling, and benefit from a full on-line tracking facility so you can check your mail’s progress along the way. Usually takes 1-3 working days.

  • Fast, same-day despatch when you order by 6pm on weekdays
  • Free no-quibble 30 day return policy
  • One flat delivery price for your order, no matter how many items you buy.
  • For partially in-stock orders you pay for delivery only once. We’ll ship what’s in stock now and the rest later at no extra charge.

*Please note orders for batteries and power banks may be subject to delays due to dangerous goods shipping requirements.

Delivery information

You can view all of our delivery options, covering UK and international shipping by visiting our Delivery Information page.

Returns information

Buy with confidence. Our 30 Day Money Back Guarantee means you can return your item in exchange for a full refund or exchange.

For more information about Shipping, Handling and Returns, please see our Terms & Conditions.


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