Darcy Ummels

90 | Chapter 4 43 Activity tracker can be charged by an electric socket Yes 10 44 Battery life lasts 2 weeks Yes 10,19,15 45 Activity tracker is waterproof Yes 10,19,12,15,21,22,28,27 46 Activity tracker is damage proof (will not break after one fall of 1.5 ‐ m height) Yes 10,25,13 47 Activity tracker is compatible with iOS Yes 10,23,27 48 Activity tracker runs on current and new software version of smartphones Yes 10 49 Step count should be visible on the activity tracker Yes 10 50 Interface uses graphs and symbols No 10 51 Activity tracker measures intensity of movements No 10,25 52 Activity tracker measures walking stairs No 10,25 53 Activity tracker shows (on tracker or app) when the battery is almost empty Yes 10,25 a Variables based on 48 interviews with people with a chronic disease 10 (Chronic obstructive pulmonary disease (COPD), cardiovascular disease, chronic pain, oncology, osteoarthritis, and diabetes mellitus) who received treatment from a physiotherapist. Variables were propounded and confirmed with four experts in wearables.