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In this paper, a wearable device and a mobile application synchronized with the device were developed to measure people\u2019s vitals and reduce the risk of silent hypoxia. The device consists of 2 parts: a wristband and a finger-clip, and includes a micro-controller, a bluetooth module, a Li-Po battery and various sensors to measure body temperature, pulse and SpO2 values. It can measure body temperature, pulse and SpO2 instantly or at certain programmable intervals like a holter device through the mobile app. These measured values can be recorded and various analyzes can be performed on them. Also the measurement results can be sent via an e-mail. When the vitals reach or exceed the predefined risk levels, a notification can be generated. The proposed device was evaluated in various performance tests and compared to a commercial pulse oximeter as well as alternatives in the literature. It was tested for connectivity and transmission, battery endurance and field testing. In the comparison test, error values of 1.8%, 3.5% and 0.6% were achieved in SpO2, pulse and temperature measurements, respectively. The device is both a measurement and holter instrument for body temperature, pulse and SpO2 values. With this feature, it can be actively used by both patients and their relatives in hospital or home environment.<\/jats:p>","DOI":"10.1007\/s11042-024-19600-2","type":"journal-article","created":{"date-parts":[[2024,6,19]],"date-time":"2024-06-19T01:01:51Z","timestamp":1718758911000},"page":"36435-36451","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Development of wearable device and synchronized Mobile application to monitor vital signs in real time"],"prefix":"10.1007","volume":"84","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-2513-9327","authenticated-orcid":false,"given":"Mert","family":"Turanli","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8567-8798","authenticated-orcid":false,"given":"Ilhan","family":"Ilhan","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9521-4500","authenticated-orcid":false,"given":"Emrehan","family":"Yavsan","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2024,6,19]]},"reference":[{"key":"19600_CR1","doi-asserted-by":"publisher","first-page":"59","DOI":"10.55236\/tuara.888749","volume":"4","author":"M Bolat","year":"2022","unstructured":"Bolat M, Kuni F, Kurban B, Bingol Y (2022) A qualitative study: investigating the decline in the number of application cases in maternity campus during the COVID-19 pandemic. 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We further confirm that the order of authors listed in the manuscript has been approved by all of us.","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Consent to participate"}},{"value":"The authors declare that they have no conflict of interest.","order":3,"name":"Ethics","group":{"name":"EthicsHeading","label":"Competing interests"}}]}}