Best Cold storage device?

I'm looking at SafePal, Ledger Nano S plus......however I am new to this. Would you please recommend?

Edit: Thanks everyone. Great responses. I have eliminated Ledger and nano from my options, because of the replies. There are so many to choose from, so I still need to research. I am starting to think that many will do the job. Crypto is intimidating due to the amount of hacks, scams, and lost money in its history. However, it seems that most the problems happen at the exchange and not at the cold storage device.