No, hardware wallets aren't secured enough because they are just a piece of hardware in plastics that can died on you or get stolen, still you have to keep your Private Key safe so why buy hardware wallet when you have to worry about keeping private key safe?
I agree with this opinion. Whatever wallet we use, I think the most important thing is to secure the private key or seed word. Mobile wallet that is on our cellphone will also be safe as long as we protect it with a password and store seed words safely