If you just want to keep your BTC off an exchange then something like Bitkee might be an option - bitkee.com
Haven't heard about them before, price looks quite expensive and similar to other hardware wallets which have better functionality and security.
Trezor and ledger nano seems best option for hardware wallet right now.
Ledger Nano S has a long waiting que. They notify the customers that shipping is about 1 month from the order, mine has been shipped 6 (!) weeks after the order, and I was happy, because I was expected much longer waiting period, despite of the official communication... I have no information about Trezor, but in February, March, they had also this backorder and were shipping after 1 month.