The phone

Do not use iphone 2g, iPhone 3G, iPhone 3GS, iPhone 4, iPhone 4s, iphone 5, iPhone 5c, iPhone 5s, iPhone 6, iPhone 6s, iPhone 7, iPhone 8. Only use the iPhone XS or above.
Do not use Samsung S1, Samsung S2, Samsung S3, Samsung S4, Samsung S5, Samsung S6, Samsung S7, Samsung S8. Only use Samsung S9 or above.
Do not use MacBook 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014. Only use MacBook 2015 or later. Do not use windows 95, windows 98, windows XP, windows 7, windows 8, windows 8.1. Only use windows 10 or above.
Do not use iOS 1, iOS 2, iOS 3, iOS 4, iOS 5, iOS 6, iOS 7, iOS 8, iOS 9, iOS 10, iOS 11, iOS 12. Only use iOS 13 or above.