I own both of them I personally like the Trezor better. For me its easy to set up and use. The Ledger Nano S has too many Google apps to download and use. It only holds a few coins at one time so I have to delete some of my coins from it to add new ones to view in my account. I also haven't used my Ledger as much as I use my Trezor. Maybe I'll get used to the more I use it.