We give you a list of all mobile phones, both Android and iOS, that will no longer be able to run WhatsApp in less than three months. WhatsApp is the most used messaging application in the world, and although many users take it for granted on their mobile device, it is likely that from 2021 they will no longer be able to use it to communicate with their friends and family. Like mobile phones, applications are also adapting to new times, and that is why many of them may stop working on your old phones if you have not updated them to a more recent operating system version. In this way, there are a number of popular phones that will no longer be able to run WhatsApp from 2021, among which are some of the Samsung Galaxy brand and also iPhone. Although WhatsApp is benevolent with the issue of updates and usually requires quite old operating systems to work, it is clear that if you have a mobile phone that has been on the market for more than five years, you could have problems using the application from on January 1, 2021. In this way, the application will recommend from 2021 to have a phone with an Android operating system greater than version 4.1 and with respect to iOS greater than version 9.0. These are the phones that will no longer be able to use WhatsApp in 2021: So if you have one of these devices, you will have to renew your phone if you want to continue using WhatsApp. They are phones that have been on the market for many years so it is unlikely that they will continue to work next year.