The research aims Evaluate the internet of things (IOT) application in four and five stars hotels on Sharm El Sheik from the perceptions of hotel Guests prospective.Questionnaire was used to measure internet of things application and its impact on guest satisfaction, saving guest time, guest trust, and guest health procedures. The range of this study is restricted to four and five star hotels in Sharm El-Sheikh. The number of targeted Guests in four and five-star hotels in Sharm El Sheikh are (500), the total number of the valid questionnaires for analysis is (411). Therefore, the response rate is (82.2%) .The findings showed the degree of adopting (IOT) within four and a five-star hotel in SharmEl Shekih is still poor. The findings also showed that internet of things has a positive effect on guest health procedures, saving guest times, guest trust,and guest health procedures. Moreover a guest health procedure has a positive effect on guest satisfaction, While guest satisfaction, has a positive effect on guest loyalty.Keywords, internet of things, guest's satisfaction, and guest health procedures Sharm El-Shiekh Hotels.Digital technologies (DTs), which combine information communication computing and connectivity technologies, include social, smart phone, analytics, computing cloud, the IOT, artificial intelligence ( AI ), and the technology of blockchain (Busulwaetal ,2022 The Applications 0f Internet of Things in Hotel Departments Room Division Department First in guest room, Hilton and Marriott have experimented with slightly different interpretations of the "connected room" concept, in which guests can manage many of the room's features using a tablet or their smartphone. Additionally, IoT platforms might eventually learn a visitor's preferred settings for temperature, lighting, TV channels, and window treatments, and prepare the room for them when they return.Hotels have the option to automatically send electronic key cards to guests' smartphones, enabling self-check-in( Infante-Moro etal,2021). It automatically changes the temperature of the air conditioning with the soft music playing when the window is opened, reacts by doing the same when the visitor uses the restroom, and does the same when using the jacuzzi (Ortiz et al,2021).second , IOT Door Lock Opening and entering the room via mobile is not new and was applied for the first time in 2014 by Starood Hotels & resorts , It was applied to save time and effort and increase luxury, as the guest was able to reach and enter the room without stopping at the reception in accordance with Torres.A,(2018). Dikken N, (2020) stated that this technology is not only for opening the hotel room, but for use in the hotel departments that require a room key, such as the gymnasium, elevators, parking lots, and hotel restaurants. (Hanafiah et al., ,2021) illustrated that The customer receives the code through the mobile application, then goes to the door lock to pair the phone application with the door lock via Bluetooth technology.