iPhone 6 faces stronger competition than any previous Apple smartphone because its essentially the same darn phone.
Although the iPhones screen is scratch proof but even though it need to be protected against the hard scratches. The dust particles falls on iPhones screen & when you touch that the screen gets scratched
Apple iPhone 6s - 64GB - Space Grey (Unlocked) Smartphone
Up for sale is a Space Gray iPhone factory unlocked for use on any GSM carrier in the world.
Apple iPhone 8 Plus - 64GB - Silver (T-Mobile) Smartphone