No cell phone will provide what you want. It is a spy tool.
I know.
Anyone that thinks they have privacy on a cellphone, particularly a “smartphone”, is kidding themselves.
From an interesting piece titled “Business Users of Smartphones May Be Breaking the Law” in Epoch Times:
“T-Mobile has admitted that smartphones that are supported by the Android and Apple operating systems (OS) aren’t private or secure forms of telecommunications and computing, because of preinstalled surveillance and data-mining technology developed by Google and Apple.”
More here and it’s well worth reading:
https://www.theepochtimes.com/business-users-of-smartphones-may-be-breaking-the-law_2728442.html