This is what I do anyhow;
1. Use a lo-tech non smart punting 'feature' phone eg:
External Link/Members Only2. If using a PC, Laptop or Netbook, use a 'live boot' linux distribution.
You can even do this with old machines with no hard drive whatsoever.
I just have a usb that I plug into my laptop when I want to look at who-ers or porn.
Meaning it doesn't touch the hard drive, when I switch the laptop off, that particular installation (that only existed in RAM), disappears until the next time I switch
the machine on with that usb plugged in, at which time a new installation pops into existance. You can buy them or make your own, just need an old 4gig usb or above.
External Link/Members Only3. Use a separate old Satnav (not one built into your car).
4. If you do have a smartphone, try to stop the f'ing thing 'syncing' with everything else in your home else it will pinpoint your whereabouts.
My goodness I'm old fashioned and definitely 'smart' device averse