Fitbit One, Wireless Activity and Sleep Tracker

Product information

Kick-start your fitness regime and help yourself stay healthy all year long. The Fitbit One™ is a wireless activity and sleep tracker is with you every step of the way. It tracks your steps, distance, calories burned and stairs climbed throughout the day. During the night it continues to measure your sleep cycle helping you learn how to sleep better, and it wakes you in the morning.

  • 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 lift? Or go for a quick walk after lunch? Those steps will add up fast.

  • It is suitably discreet so you can wear it comfortably in your pocket, on a belt or bra and the silicone clip will keep it secure.

  • The rechargeable battery lasts 5-7days before needing a boost ans the device is also rain, splash and sweat proof so you can take it with you whatever the weather.

  • At night you can slip the One into a wrist band and the device will continue to work, measuring your sleep cycle. When you need to wake up the One vibrates but doesn’t make a sound so you don’t have to disturb your partner.

  • Bluetooth connectivity lets you see your stats in no time. The One automatically syncs your data to PCs, Macs, and selected iOS and Android devices. All you need to do is sign up for your free account on and register your device.

  • The Fitbit explains your personal data to you using graphics, charts and tools designed to help track your progress. This means you can get a better understanding of your lifestyle and fitness. What’s more the device will score your quality of sleep and over time you can start to apply what you learn in order to make you sleep more soundly.

  • There is a free mobile app and customisable dashboard that bring all your data to your fingertips. Knowing how close you are to achieving your goals, gives you added incentives to push yourself that bit harder. When you do, Fitbit will reward you with badges for daily, weekly and even lifetime achievements.

  • 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. Our expansive database covers food and activities, which makes logging your info quick and easy. Create a Food Plan to eat smarter.

  • Challenge and compete with friends and family on In addition to rooting for one another, you can compare stats and see how your progress stacks up.

The Fitbit app is currently confirmed to work with the following devices:
iPhone: 4S, 5
iPod Touch: 5th generation
iPad: 3rd generation, Retina Display, mini
Samsung Galaxy: S4, SIII, Note II, Note 10.1

Compatible with
PCs, Macs, the iPhone 4S, 5, iPod touch and the 3rd generation iPad
Eligible for International Delivery
Model name / number


Click & collect

Free from John Lewis or Waitrose shops for collection tomorrow from 2pm
369 participating John Lewis and Waitrose shops

Collect + from a local shop from tomorrow - postcode exclusions apply for Collect+ deliveries

5000+ participating Collect+ shops

Standard delivery in 5 working days


Named or Saturday UK delivery


Named day UK delivery pre-10.30am


International delivery not available

We want you to be happy with your purchase. If you're not, depending on the type of product, you can make free returns in the UK via John Lewis shops, Royal Mail, Collect+, or MyHermes. If you need to arrange collection of large or heavy items, call us on 03456 049 049. For international returns queries, call us on +44 1698 545 454. Find out more about returns.

You'll find returns information on your delivery note. Unless faulty, we'd like you to make your return within 90 days of purchase. Exceptions apply to certain products - find out more about our refund policy.


Find out more about returning products

Q & As

Rated 4.4 out of 5 by 22 reviewers.
Rated 5 out of 5 by The Fitbit One keeps you motivated I love this little gadget. It syncs with your phone app almost effortlessly, you can keep track of your food intake vs your calories burnt off, it tracks your sleep... all that from something that's as small as your little finger! 25 April 2015
Rated 5 out of 5 by Discrete motivator It's small....about the size of a thumb drive or usb stick. It can therefore be worn discretely hooked onto the waistband or edge of a trouser pocket. I bought one for my wife also. We compare activity measurement such as number of steps and stairs climbed and make it a bit competitive to see who can do the most. The badges sent by email are awarded for reaching a milestone. They are also a good incentive. The Fitbit One connects easily by Wifi/Bluetooth to either a PC or smart phone, android or iOS. The smart phone app is clear and can make your activities appear as a graph or easy read charts which also helps to set goals. There is a small display on the Fitbit one which can shows your steps, stairs climbed, distance covered, calories burnt and a flower which grows in relation to your objectives reached for the day. The Fitbit One can also be used to monitor sleep, comes with a small cuff wristband which you wear to bed at night and it measures how many times you wake up in the night. Also has an alarm feature which will vibrate so as not to wake your partner. The battery is recharged about every 2 weeks which is really good and only takes an hour or so. All in all an excellent unit.....thoroughly recommended. 03 March 2015
Rated 5 out of 5 by Really love it! I am totally addicted to my new gadget and despite being very active, it still encourages me to do more. There seem to be a few anomalies on occasion with data but it still gives useful trends and pushes you to be more active. 11 February 2015
Rated 1 out of 5 by Not for use with Chrome Notebook Checked beforehand that it was compatible with my phone. What a shame it is not compatible with my chrome notebook, and you have to register on the website before you can use an app. Emailed Fitbit, they have no plans to sort this software either. Won't be buying anything from Fitbit in the near future. Returned for refund. Thank goodness it was purchased here. 10 February 2015
Rated 5 out of 5 by Good bit of kit It's an easy to use bit of kit, even for a non-techy person like me. I bought it last April and I've lost over 30lbs. I've not gone mad with exercise or dieting, it's been a slow, steady effort. I've just become more aware of how many calories I was eating. The software's combination of calculating calories in versus calories out is simple and effective. I've tried umpteen diets over the years and this is the only one I've stuck to for more than four months. From a health point of view it may not be the best as it's not concerned with what you eat just the calories, but then if you want to eat something bulky and substantial, loads of chocolate will take you over your limit pretty quickly and you'll soon be reaching for less calorific alternatives. I've not tried synching it up to My Fitness Pal and logging foods can be a bit of a chore, but once they are logged they remain in your list. I've already bought another three for friends / relatives. 05 January 2015
Rated 5 out of 5 by a pint sized personal trainer ! easy to set up, a useful motivator that gives quite a lot of fitness detail when combined with the online dashboard. Comfy to wear and seems to be accurate too 06 May 2014
Rated 4 out of 5 by Best Product Out There I did not want to have to carry an iPhone around to monitor my progress during an exercise routine. Fitbit One is great because you can look half way through a walk or routine to see hoes many miles you have walked, how many calories burned, how many steps etc.. With the bracelet or the Nike product you have to wait until this is synched to a mobile device. Interface to MyFitness Pal is excellent and the FitBit One updates via my Mac every time it gets near the PC. If I were buying again - I would buy the same product - that is probably one of the best recommendations you can have. 06 May 2014
Rated 5 out of 5 by A great motivator! Easy to wear and to use during the day; not quite so good overnight as the wristband doesn't always stay on. Fascinating to log on each day and view my activity levels, which has now become an obsessive-compulsive activity in its own right! My Fitbit inspired me to try the Couch25k programme published on the NHS website and I am now starting on Week 4 of this programme, albeit at 'pensioner pace'............ 06 May 2014
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