Apple just gave owners of older iPhones a great reason not to upgrade
I Installed iOS 12 on My iPhone 6s Plus And I Just Love It
iPhone 6S review: Good in many ways, but it'll benefit a lot from iOS 12
iOS 12 - Wikipedia
iOS 12 : quelles sont les conséquences pour l'iPhone 6 Plus ? - Le blog de Bricophone - Actualités, astuces et conseils sur la réparation de votre iPhone ou Smartphone
iOS 12 runs much faster, especially on older iPhones | Cult of Mac
Download: iOS 12.5.3 and iPadOS 12.5.3 Now Available for iPhone, iPad
What happens if you run the latest iOS 12 on older devices such as iPhone 5s and iPhone 6? Compared to iOS 11 - GIGAZINE