Polkadot

Staking on Polkadot means locking your DOT with a validator that helps run the network. In return, the network pays you a share of newly created tokens — similar to how a savings account pays interest, but the rate is set by the protocol, not a bank.

Right now the top validators on Polkadot pay around 14.0% per year, after their commission. The rate moves with the chain's inflation schedule and how much of the supply is staked overall.

Your tokens stay in your wallet — you never hand them over. The two real risks are slashing (the network can shrink your balance if your validator misbehaves, which is rare) and lock-up (you can't sell instantly during the unbonding period). Pick a validator with a track record and you sidestep most of the risk.

Yes, but unstaking is not instant. Most chains have an unbonding period of a few days to a few weeks during which you don't earn rewards and can't sell. Liquid-staking tokens (like stETH for Ethereum) sidestep this by giving you a tradeable receipt token.

Any non-custodial wallet that supports Polkadot works — Phantom or Solflare for Solana, Keplr for Cosmos chains, MetaMask for Ethereum and EVM chains, Yoroi or Eternl for Cardano. Connect, choose a validator, click delegate. The whole flow takes a couple of minutes.