I can’t reliably name the cheapest hardware wallet without checking current prices and Ethereum/Solana support. For a budget choice, compare entry-level hardware wallets by total delivered cost, then confirm that the exact model supports both networks through wallet software you’re comfortable using. Support may require separate companion apps; don’t assume every model from a brand supports the same chains. Hardware wallets keep signing keys isolated from your phone or computer, but cost money and add steps when connecting or approving transactions. Mobile/software wallets are usually free and more convenient, but keep keys on an internet-connected device, increasing exposure if it is compromised. Either type can still authorize a malicious transaction. If you’re holding only a small amount, a reputable software wallet may be a reasonable starting point. For larger or long-term holdings, prioritize verified support, security design and reliable recovery over the lowest price. Buy from the manufacturer or an authorized seller, initialize it yourself, and never use a supplied recovery phrase or share your own. Check shipping, taxes and required accessories before deciding which is cheapest.