The display is really vibrant and separates each colour amazingly.the body is made up of smooth brushed aluminium therefore a case or cover is required to avoid damage to back of the phone.apart from that the only flaw I found was the protruding camera , but it can be avoided by using a slightly thicker case.I found I phone 6 better than6s as the features on the 6s are not worth there price.Talking about the speed starting from unlocking the phone the touch id is good unlocks the phone in one second .If you are thinking from upgrading from an older iphone or an andriod phone and do not want to spend a lot of money on the latest flagship 6s then this phone is definitely a way to go.