Bitcoin hardware wallets are sophisticated semi-cold storage systems. Semi-cold storage means they are mostly offline and this is partly what makes them more secure then other types of wallets.
Every time you want to send coins you’ll just connect the hardware wallet to a computer and then take it offline again once the transaction is complete. Keep in mind that you have to buy hardware wallets, unlike many other types of storage solutions which are mostly free. You can read more about all the types of wallet available to store bitcoin by clicking here.
Although you still have to trust the hardware-wallet manufacturer & suppliers (to some extent), many people claim that this is the safest type of bitcoin wallet.
Here are three popular bitcoin hardware wallet systems
Ledger
The Ledger Nano S is a multi-currency hardware wallet, featuring a screen for payment validation and architected around a secure element for maximum protection of your assets.
It is relatively cheap. It is also the most popular hardware wallet. The other Ledger products are also good, but the Nano S stands out as the best option for price, ease of use and security.
The Ledger Nano S is small and compact. It also has a metal casing which makes it more durable compared to other bitcoin hardware wallets and with it’s small size it fits easily into your pocket or hand.
Trezor
Easy to use for beginners to use and it has a nice user interface.
TREZOR is a single purpose device which allows you to make secure Bitcoin transactions. With TREZOR, transactions are completely safe even when initiated on a compromised or vulnerable computer.
Because the using a TREZOR is very easy and intuitive we believe it will help Bitcoin adoption among people not familiar with the security issues.
Coldcard
The Coldcard is a Bitcoin (BTC) hardware wallet, released in August 2018 by Coinkite.
Coinkite is the same team that made the OpenDime. This is a “small USB stick that allows you to spend bitcoin like a dollar bill”.
The Coldcard is a completely different kettle of fish. Like other cryptocurrency hardware wallets, it allows you to securely store and submit transactions without exposing (or transmitting) your private keys. You’ll need to physically confirm all your transactions on this external device.
Hardware wallets make securely storing your cryptocurrency and making transactions convenient and safe.
Note: some experts suggest that hardware wallets are not real cold storage (completely offline) because they require USB connections to make transactions. Note that Coldcard offers a true Air-Gap solution. Air-Gap means your hardware wallet is never connected to a computer.
Conclusion
All these hardware wallets are good products with affordable price tags.
If you’re looking to keep your coins safe, you definitely need a hardware wallet. For people new to Bitcoin we would recommend the Ledger, or Trezor products, but for an advanced user and maximum security, Coldcard is the best option