To be anonymous:
Buy a pre-paid with cash. Buy a pre-paid minutes card with cash. Do not take it to your home or car. Place tape over the front and rear cams before activating. Go into apps and disable everythinh. Check all the settings for hidden actions. Deny all permissions. Short of what is needed for the phone to work and access net. Create a Proton Mail account with the phone. Do not download the app. Activate and use the phone under tree cover and away from streets and builngs, any place that could have a camera. Stay away from people, other cell device sources. Do not use slang or other peculiar devices in speech. When not using: turn off, remove battery, wrap in a anti-signal bag, place in an airtight container and burry it deep, away from trails and foot traffic.