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Listen to your body

Why I stopped using health and fitness sensors

May 17, 2018
Using health data gathered by sensors and wearables I learned to listen to my body. Now I have stopped using bluetooth sensors all together.

A good customer of mine was once a physiotherapist, he told me about people asking him to "feel their muscles" to tell them how they where doing. "Crazy!" he told me: "I can never feel better than the people themselves, if they only would listen to their body". This caused me to question the health and fitness sensors I use.

Something the smartwatch will never have: patina

Wear and tear by the hands of time

Jan. 21, 2018
Patina is often neglected when comparing smartwatches with regular watches.

A good friend of mine had an issue with his Apple Watch, the digital crown lost a rubber ring causing the watch to lose its water resistance. Apple made no problem of it and offered to replace his "device". While it solved his problem, it felt painful to my watch lover's ears. It made me realise the one thing a smartwatch will never have: patina.

Collecting health data with Biostrap

Wearing a clinical-grade photoplethysmography (PPG) sensor for a month

Nov. 15, 2017
Wearing a clinical-grade PPG sensor for a month to collect advanced biometrics from my wrist.

Most wearables (smartwatches, fitness trackers, etc.) use very basic sensors to capture heart rate. Their signal is binary: just counting beats. Biostrap is different, instead of just checking pulses, it captures a high-fidelity PPG waveform. These waveforms are the same kind that doctors use, making me wonder what I could learn from them!

Smartwatches vs Mechanical watches

Why I still wear mechanical and why smartwatches have potential

Apr. 30, 2017
Why I still wear a mechanical watch and why smartwatches have potential.

Technology has come a long way since the first computer. Smartwatches today are very much an achievement of miniaturisation of technology. I recently used an Apple Watch Series 2 to find out if technology has come far enough to replace my mechanical watch, today I share you my findings.

Programming on Apple Watch

Serious about crazy experiments

Feb. 16, 2017
Programming with VIM over SSH on Apple Watch using a bluetooth keyboard

Over the past years I have been no stranger to crazy experiments, but this time I really wanted to push it into the extreme: programming on an Apple Watch. Would it be possible to actually write code on such a tiny device? Why even bother? This post is about the case for crazy experiments, and why you should try too!

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The plated gold is worn through, but the watch still shines in sunlight
The plated gold is worn through, but the watch still shines in sunlight
Notice the countless microscopic scratches reflecting light like no new watch would
Notice the countless microscopic scratches reflecting light like no new watch would
A mechanical watch: Christiaan van der Klaauw
A mechanical watch: Christiaan van der Klaauw
The original Pebble from 2012
The original Pebble from 2012
The Pebble Smartwach is no longer supported by software an will not develop patina
The Pebble Smartwach is no longer supported by software an will not develop patina
Unboxing Biostrap: it comes well packed in a nice box.
Unboxing Biostrap: it comes well packed in a nice box.
One month of Biostrap health data
One month of Biostrap health data
The Biostrap PPG sensor is about as thick as a watch
The Biostrap PPG sensor is about as thick as a watch
For sure I will need some time to get used to not wearing sensors... note the white stripe on my wrist :-)
For sure I will need some time to get used to not wearing sensors... note the white stripe on my wrist :-)
Real programming code, real Apple Watch. No Photoshop.
Real programming code, real Apple Watch. No Photoshop.
Nokia 9300i, officially not a communicator but nonetheless a device with advanced mobile communication options for its day (2007). Running Putty on Symbian Series 80.
Nokia 9300i, officially not a communicator but nonetheless a device with advanced mobile communication options for its day (2007). Running Putty on Symbian Series 80.
Biostrap iOS app dashboard and daily heart rate
Biostrap iOS app dashboard and daily heart rate
My mechanical watch in action
My mechanical watch in action
Incredible details in the MB&F Legacy Machine (photo: Monochrome Watches)
Incredible details in the MB&F Legacy Machine (photo: Monochrome Watches)
Comparing the quality of sleep during two different nights. Being awake more often reduces quality of sleep.
Comparing the quality of sleep during two different nights. Being awake more often reduces quality of sleep.
And so I did! Programming on Apple Watch using VIM, SSH, a Bluetooth keyboard and coffee.
And so I did! Programming on Apple Watch using VIM, SSH, a Bluetooth keyboard and coffee.
The Apple Watch from 2014
The Apple Watch from 2014
Message from my buddy Niels, suggesting I take my
Message from my buddy Niels, suggesting I take my "working on a smartphone"-idea to the next level, complete with a Photoshop mockup.

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