Dear Motohiro Nakajima - There are many companies. Some years ago we used Cambridge N tech actiwatches - they are simple and reliable - we used them for round the world travel sleep studies. You can look up our papers on my page.  http://www.camntech.com/  Hope this helps, best wishes

Our lab has always used Respironics Actiwatches, which are very reliable and tough.  We put them them Army Basic Combat Training and they did quite well.  The watches are easy to use, including downloading and analyzing data.  They are expensive, so you might want to consider a cheaper alternative if you feel like they may get damaged.  For example, depending on the information you plan on collecting, a Fitbit might be a good alternative for a situation where you don't want to $1000 USD per watch.

Respironics Actiwatch 2 and Spectrums. Sturdy and have data on validity in the literature. We just finished a validity study with TBI patients showing good correlation with TST and SE with PSG with EEG.

The gold standard has been the Actigraph, which was used to validate the Cole-Kripke algorithm.

In our lab, we use Philips Respironics Actiwatches. These Actiwatches are reliable and sturdy. After sell service is excellent. Now we are going to buy AW2 - an improved version of AW64.

Hello Motohiro, Our lab used Respironics Actiwatches II. We are using this actigraph few yaers and they are very good and reliable. In addition the software is very easy to use.

Hello Motohiro,

In our lab we use the actiwatch Spectrum from Philips respironics. The device is reliable, damage-proof (to a certain extent), and water proof. The software is also easy. The only minor issue is that when the battery runs out you have to mail it to the company and they replace the battery, which takes about a couple of weeks. 

I would highly recommend the Fatigue Science Readiband. It has been validated against PSG a and has been used in many industries.  I have used it extensively in mining and metals and with judo combat athletes. The device was originally designed for military. It is durable ,tough and easy to use. They last up to 60 days ,tell the time ,the date and current personal effectiveness. They are about $350 dollars each and can be easily downloaded into an indivual PDF report and the data can be collated very easily. I have completed approx 3,000 actigraph assessments using this device. I would be cautious of using fit bit and or jawbone as they have not been validated against PSG or via the method that James Miller discussed in an earlier answer.

hope this helps 

Ian C Dunican

Useful discussion.

I have seen a very good actigraphy systen at the ESRS congress in Tallin. The name: GeneActiv. The price and the performance is very good. Homepage: www.geneactiv.com. It is combined with temperature sensor ant it is an open system, the raw data can be transferred to any software (like MATLAB)

The sturdyness of the unit, reliability and validity of actigraphy would have come into consideration when researchers at Portsmouth University commissioned the purchase of several Phillips Respironics II and Spectrum actiwatch watches. We will be using these in our upcoming pilot and feasibility study on testing the effects of Respiratory Muscle Training on Quality of Sleep and Snoring.

We used the Move II sensor from movisens (www.movisens.com) in different studies.

Our lab has used Motionwatch-8's from CamNTech.  I recommend them. 

http://www.camntech.com/

SBSM has recently published a guide to actigraphy monitoring, which provides everything you need to know when selecting a device for actigraphic measurement of sleep parameters (see attached). We've been using CamNtech's MotionWatch 8 to objectively measure sleep quality in older adults (also attached).

Article The SBSM Guide to Actigraphy Monitoring: Clinical and Resear...

Article Measuring sleep quality in older adults: A comparison using ...

The key element in investigations of this kind is the possibility to make very-large-scale studies and asking for continuous feedback from the patients. This would necessarily imply the use of low-cost devices. In order to encourage even more people to wear it, a wrist actigraphy should display time and date as a normal watch does.

Can we access raw activity data from these wearable actigraphs like Actiwatch Spectrum?