An experiment with fitness trackers

I have had a fitness tracker of some descript for many years. In fact I still have a stack of them. I used to think they were actually tracking stuff accurately. I compete with friends and we all have a good time. Lately though, I haven’t really seen the fitness benefits I would have expected from pushing myself to get higher and higher step counts. I am starting to think it is bullshit.

I’ve have the following:

  1. Fitbit Flex
  2. Samsung Gear Wear
  3. Fitbit Charge HR
  4. Xiaomi Mi Band
  5. Fitbit Alta
  6. Moto 360
  7. Phone in pocket setup to send to Google Fit.
  8. Garmin ForeRunner 735XT (current)

Most days I would be getting 12K+ just by doing my daily activities (with a goal of 11K): getting ready for work and children ready for school (2.5K), taking the kids to school (1.2K), walking around work (3K), going for a walk at lunch (2K), picking up the kids and doing stuff around the house of an evening (3.5K) etc.

My routine hasn’t really changed for a while.

However, two weeks ago I bought the Garmin Forerunner 735XT, mainly because I was fed up with the lack of Android Wear watches in Australia as well as Fitbit’s lack of innovation. I love Android Wear and Google Fit and have many friends on Fitbit, but needed something to actually motivate me to exercise more.

The first thing I noticed is that my step count is far lower than any of the above fitness trackers. Like seriously lower. We are talking at least 30% or more lower. As I write this I am sitting at ~8.5K steps for the day and I have done all of the above plus walked to the shops and back (normally netting me at least 1.5K) and have switched to a standing desk at work which is about 3 metres closer to the kitchen that my original desk. So negligible distance change. The other day I even played table tennis at work (you should see my workplace) and it didn’t seem to net me as many steps as I would have expected.

Last night I went for a 30 min walk and snatched another 2K, which is pretty accurate given the distance and my stride length. I think the Fitbit would have given me double that.

This is interesting.

Either the Garmin is under-reporting or the others are over-reporting. I suspect the latter. The Garmin tracker cost me close to $600 so I am a bit more confident of its abilities than the $15 Mi band.

So, tomorrow I am performing an experiment.

As soon as I wake up I will be wearing my Garmin watch, Fitbit Charge HR right next to it, and keeping my phone in my pocket at all times. Both the watch and Fitbit will be setup for lefthand use. The next day, I will add more devices to the mix.

I expect the Fitbit to get me to at least 11K, Google fit to be under that (9.5K) and Garmin to be under that again (8K). I expect the Mi band to be a lot more than the Fitbit.

The fitness tracker secret will be exposed!

Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s