Hi Dee, the Samsung Galaxy Watch Active2 Smartwatch/wearable (40mm) is designed to be compatible with a Samsung Smartphone, Non-Samsung Android Smartphone (Android OS 5.0 and above RAM 1.5GB and above). Regarding the updates that are required, you will need to ensure that your mobile device is above the needed operating system with the appropriate amount of RAM within the device. It is not how often an update would be needed, but rather, ensure that you stay updated to work with the wearable. You can find the information for the Galaxy Watch Active2 by using this link (https://bit.ly/2rh1qxu). You can easily find the specifications by selecting 'Specs' at the top of the page and ensure to open up and 'See All Specs' when you navigate down the product page. Thank you for reaching out for clarification and for being a part of Samsung! ^Liz