Fitbit One Activity TrackerAnother model in the very popular Fitbit line of pedometers is the Fitbit One Wireless Activity Plus Sleep Tracker. First introduced on the market in 2012, the Fitbit One is still rated very high in customer satisfaction to this day. So I decided to further research how it compares to the other Fitbit models available.

The main difference with the Fitbit One is that is has an altimeter which basically means it can track floors climbed.For those working or living in places where they climb stairs a lot during the day, this is a huge plus in adding to their daily step count and correctly evaluating their daily activity level.>buy1._V192207739_

Table of Contents
Click ahead!
1. Tracking Modes 2. Tracking Accuracy 3. Buttons & Controls
4. Connectivity 5. Logging Data 6. What’s in the Box
7. Dimensions & Weight 8. Ways to Wear 9. The Battery
10. Pros 11. Cons 12. Consumer Reviews 13. Price

Tracking Modes

The Fitbit One has 6 tracking modes:

  1. steps taken (walking, running or jogging)
  2. distance traveled
  3. calories burned
  4. stairs climbed (including walking uphill)
  5. hours slept
  6. sleep quality

When it comes to tracking other activities such as elliptical, treadmill and stationary bike workouts, cycling, lifting weights and many more, you will need to enter the activities manually through the account or their free Fitbit App.

Tracking Accuracy

The Fitbit One has a built-in altimeter and MEMS 3-axis accelerometer. Customers report overall satisfaction with the tracking accuracy for its basic 6 modes. Correct personal stride length input and where you wear it on your body are both also determining factors in the accuracy of its tracking.

The Fitbit One has a default stride length based on the height and gender you enter in your initial setup. Should you not find the readings to be accurate, you also have the option to manually adjust your stride length for increased accuracy. To calculate your personal stride length, follow these instructions from my earlier post.

Where you wear the Fitbit One Activity Tracker on your body will also affect its tracking accuracy. Fitbit recommends wearing the Fitbit One in your pocket or clipped to your pocket, belt or bra. After researching countless customer reviews, different people get different accuracy results depending on where they wear the Fitbit One. Users have even reported placing the Fitbit One clipped to their sock or shoe while working out on elliptical and treadmill machines or stationary bikes and getting accurate readings. So it may be worth your time to try out several positions and see what works best for you as in the end it really boils down to personal choice for comfort and accuracy.

Fitbit One StatsAs mentioned before with other activities, apart from walking, running, jogging and stair climbing, you need to enter manually their start time, duration and/or mileage on the website or app. These include such activities as swimming, dancing, yoga, jumping, cycling, lifting weights and elliptical, treadmill and stationary bike workouts just to name a few. After entering the chosen activity data, the calories burned will be calculated automatically based on the personal profile you entered in the initial setup or you can choose to calculate them manually yourself.

The Fitbit One Activity Tracker also tracks your sleep quality – how long you slept and the number of times you got up or woke up. A great feature to enhance its accuracy is that you are given a choice between the normal setting or the sensitive setting. The normal setting, as its name suggests, is intended for most users who just want a general idea if their sleep quality so it will register the more obvious movements such as rolling over in your bed as being awake. The sensitive setting picks up more details and movements and is intended to be helpful to users with sleep disorders in providing them with data to be able to study and thus improve their sleep patterns.

Buttons & Controls

The Fitbit One Tracker has an OLED (organic light-emitting diode) display with one button control. With each press of the button the display will change to show one of the following 6 options:

  • Step count
  • Distance traveled
  • Calories burned
  • Floors climbed
  • Clock
  • Flower (that either grows or shrinks depending on your present activity level)

Fitbit One sleep bandTo activate the sleep track mode, place the Fitbit One tracker inside the included sleep wristband and press and hold the tracker button for about 2 seconds until you see a stopwatch and the other icons blinking. To get out of the sleep mode, follow the same procedure but this time until the icons stop blinking.

Activated by its cylindrical vibration motor, the Fitbit One has a silent alarm that will wake you up with a gentle vibration (that lasts for about 9 minutes), which is great if you have a partner you don’t want to disturb). You can choose to designate a one-time or repeated-time alarm.

Interesting but Annoying Display Feature
When you first use your Fitbit One tracker, the display will be in the Beginner Mode. What that means is that you will see the name of the display screen you are in. So you will see “STEPS” displayed followed by value and icon for the step display screen. The name will stop appearing after 5th time accessing the step display screen.

The Beginner Mode will activate each time you reset, turn off and back on, upgrade your tracker or let the battery completely drain. I would find that very annoying. I mean how hard can it be to associate the icons with what they symbolize… footprints for steps taken, a flame for calories burned, etc?

Display Option I Love, Love, Love!
However, I can easily forgive the Beginner Mode all because of the Lefty Mode. You guessed it. I’m left handed and in a world where we are sorely ignored, Fitbit shows us some love with the Lefty Mode. Select the left-handed button in the device settings and the display will re-orient itself to properly display for all us lefties. Thank you, Fitbit!

Awesome Feature Most Will Love
From my extensive scouring of customer reviews of pedometers and activity trackers, one missing feature that receives a lot of complaints is not being able to turn the damn tracker off! Well, I am happy to announce the Fitbit One is the answer to your prayers because you can turn it off. Just plug the USB end of the charging cable into your computer and the other end into your tracker. Press the tracker button for 12 seconds. You will see the battery icon after 5 seconds but continue to press down for the full 12 seconds. Unplug the charging cable from your computer’s USB port and unplug the cable from the Fitbit One. Voilà! Your tracker is off. To turn it back on press the button for a few seconds.

Connectivity of the Fitbit One Activity Tracker

Computer Connectivity
Fitbit One Connectivity
Mac Requirements:
Internet connection
Software: Mac OS 10.5 and later
Hardware: USB port

PC Requirements:
Internet connection
Software: Windows XP/Vista/7/8
Hardware: USB port

Mac Browser Requirements:
Chrome – 12 and later
Firefox – 3.6.18 and later
Safari – 5.0.5 and later

PC Browser Requirements:
Chrome – 12 and later
Firefox – 3.6.18 and later
Internet Explorer – 8 and later

The free Fitbit Connect software allows you to sync stored data from your tracker to your Dashboard. For an easy step-by-step software installation guide followed by instructions on how to pair the Fitbit One to your computer, refer to pages 2 to 7 of the Fitbit One Manual which you can view or download.

Mobile Devices Connectivity

iOS and Android smartphone and tablet requirements:
Bluetooth 4.0
Internet Connection

Download the free Fitbit App from either the Apple Store for iOS devices or the Google Play Store for Android devices and install accordingly. To pair up your Fitbit One with your mobile device, refer to the easy-to-follow instructions on pages 8 to 11 of the Fitbit One Manual.

Here is a list of all mobile device that are Fitbit One compatible.

PC and Mac Wireless Syncing
With your Fitbit Connect software installed and your Fitbit One paired with your computer, plug in your wireless sync dongle into your computer. Make sure your tracker is within 20 feet from your computer and syncing will occur with new data from your Fitbit One Activity Tracker every 15 minutes. Syncing your data regularly is recommended.

iOS and Android Mobile Wireless Syncing
The Fitbit App installed and your Fitbit One paired to your mobile devices, the Fitbit One tracker will sync wirelessly to your smartphone or tablet via Bluetooth 4.0.

If you have a smartphone or tablet that is NOT compatible, you will not be able to sync your latest data from your tracker but you will still be able to log data, view and track your progress with the Fitbit App.

Logging Data

Once you set up your free and Fitbit App accounts you can login and view, set goals and edit all your recent fitness data and progress. The data for all your activities resets automatically at midnight on your tracker but you will see the minute-by-minute stats for the last 7 days. For the 23 days preceding them, you will see daily totals of your steps taken, distance traveled, calories burned and stairs climbed.

Fitbit-One-dogAs mentioned before, you can manually enter activities and workouts not included in the Fitbit One’s tracking modes. You can select them from huge database of activities and then log in daily mileage and activity duration time. If the activity is not listed in Fitbit’s database, you can also add a custom activity. Calories burned will automatically be calculated based on your personal profile.

You can also log in your food and water intake and create a Food Plan whether it be to lose weight, maintain weight or just to eat smarter. You can set a weight goal and based on what you’ve eaten and the activities completed for that day, you can view if you are under, over or in your weight goal zone. The Fitbit Aria scale also integrates with the Fitbit App so you can easily measure your body fat too.

The sleep stats recorded will show you details of your sleep quality – how long you slept, how many times you were restless, how long you were awake or how many times you got up. This is valuable information that you can apply to learn how to improve your sleep quality especially for those who experience sleep disorders. Should you happen to forget to turn on the sleep mode when going to bed, you can also manually enter your sleep time.

Silent alarms can be set for one time or repeated alarms. They can be set not only to wake you up but also as reminders for meetings and events coming up. The fact that the alarms just silently vibrate is an added plus as this means they can go off anywhere without causing any disturbance.

The Fitbit App also easily integrates with many other apps so you can keep using your app of preference. You can export your data to other popular fitness apps and some of them will you import their data. Check out the full list of apps that are compatible.

Best of all, you are able to connect with family, friends and other communities to share experiences and information and encourage you on your fitness journey. You can join fitness challenges that will help keep you motivated to reach your goals. I don’t know about you but I always find I do better when I have a workout buddy. It keeps going when I fell like giving up. Now I have a chance to have not one but a whole bunch of workout buddies!

Also to keep you motivated are the badges you can earn for daily, weekly or lifetime achievements. When you’ve been idle for too long, motivational messages will appear on your screen like “Get Moving!” and when you’ve done well “High Five”.

You also get a weekly and monthly report of your fitness data. All this for free! There is a Premium paid option with extra features but for most the free option is all you need.

What’s in the Box

Items Included:

  • Fitbit One tracker
  • Silicone and metal clip
  • Wireless sync dongle
  • Charging cable
  • Sleep wristband
  • Free membership and free Fitbit App

Items Sold Separately:

  • Silicone and metal clip
  • Wireless sync dongle
  • Charging cable
  • Sleep wristband

Dimensions & Weight

The Fitbit One measures:
1.89 inches (48mm) in height,
0.76 inch (19.3 mm) in width,
0.38 inch (9.65 mm) in depth.

The Fitbit One weighs:
0.28 oz. (0.02 lb, 8 grams).

Ways to Wear

Fitbit One sizeThe Fitbit One is small, lightweight and discreet making it very comfortable to wear especially for those who don’t like wearing any type of bracelet or wristband.

Fitbit recommends wearing the Fitbit One in your pocket or clipped to your pocket, belt or bra. It is best worn facing inwards for a more secure fitting and to avoid losing it.

Complaints about the clip nor being secure are few in comparison with other pedometers. Just to be on the safe side, you might consider using a safety leash.

Although it is not waterproof, it is water resistant and rainproof as well as sweat proof. Fitbit advises strongly against wearing it while swimming and not to submerge it more than one meter of water.

It is available in 2 colors – black and burgundy.

The Battery

The Fitbit One uses a lithium-ion polymer rechargeable battery. The last firmware update extended the battery life to about 2 weeks. You can conveniently check the battery level on your online dashboard. Fitbit even has a free service called Fitbit Notify that sends you an email reminder when your battery is due for a charge.

Charging the battery is easily done. Just plug one end of the charging cable into the USB port and the other end into your Fitbit One tracker but make sure to properly align the tracker’s gold contacts with the charging cable’s gold dots. To check the battery level while it’s charging all you need to do is press the button on the tracker. A full charge will take about 2 hours.


  • Has an altimeter to measure stair climbing
  • Has a display with 6 tracking modes
  • Features a clock on its display
  • Accuracy and durability rated high by users
  • Measures sleep quality
  • Vibrating silent alarm will not cause disturbance
  • Ability to connect to online community is highly motivating
  • Can set either miles or kilometers for distance units
  • Ability to turn the tracker off
  • Easy to set up and program
  • Wireless syncing of latest stats
  • Compatible with PCs and Macs, iOS and Android devices
  • Compatible with many other fitness apps available
  • 45 Day Satisfaction Guaranteed Return Policy
  • 365 Day Limited Warranty
  • Excellent customer support from Fitbit
  • Ability to connect with online fitness communities
  • Small, light and discreet
  • Fitbit website great source for information and help
  • Great motivational tool to become more active and healthy


  • No GPS tracking
  • Sleep wristband comes undone and tracker often slips out
  • Silicone case with clip tends to loosen over time and tracker falls out
  • Sometimes counts steps while driving on bumpy roads
  • Display hard to read in bright sunlight
  • Need to manually enter activities not tracked
  • Not waterproof

 The Fitbit One Activity + Sleep Tracker Customer Reviews

Almost 2 years on the market and the Fitbit One Activity Tracker is still among the bestsellers on Amazon. At the time of this review, there are over 5,000 customers giving it the highest ratings.

The Fitbit One is a great choice for those seeking an easy-to-use and set-up activity tracker. It is comfortable to wear and small enough to be unobtrusive especially for those who do not like wearing wristbands.

The Price for the Fitbit One Activity + Sleep Tracker

The Fitbit One is priced at just under $100 on Amazon.

Make sure to check and compare the prices for the different colors available as sometimes certain colors are priced lower.

Filed under: Reviews

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