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. 2019 Mar 26;7(3):e10044. doi: 10.2196/10044

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©Todd Matthew Manini, Tonatiuh Mendoza, Manoj Battula, Anis Davoudi, Matin Kheirkhahan, Mary Ellen Young, Eric Weber, Roger Benton Fillingim, Parisa Rashidi. Originally published in JMIR Mhealth and Uhealth (http://mhealth.jmir.org), 26.03.2019.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work, first published in JMIR mhealth and uhealth, is properly cited. The complete bibliographic information, a link to the original publication on http://mhealth.jmir.org/, as well as this copyright and license information must be included.

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The Samsung Gear S smartwatch used in the PROMPT (Patient Reported Outcome of Mood, Pain, and faTigue) study. Ratings are entered by rotating the bezel to select pain ratings. The color schema also changes as the ratings are increased or decreased. Ratings are saved by pressing the top button (physical button), located on top of the bezel.