Layer 1 vs layer 2: what changes for users
Layer 2 often changes user costs, speed and bridge steps. A layer 1 settles on its own chain, while a layer 2 posts proofs or data back to it.
Vahe HakobyanEditor-in-chief
Updated Oct 6, 20263 min readFact-checked
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Layer 1 vs layer 2 comes down to what changes for users: cost, speed and the extra steps of moving funds between networks.
What are layer 1 and layer 2?
A layer 1 is the base blockchain that settles its own transactions and keeps the final record. A layer 2 is a separate network built on top of a layer 1. It handles activity and posts proofs or data back to layer 1 to settle.
How do costs and speed compare?
Layer 2 networks usually charge less because they roll many transactions into one layer 1 transaction. Ethereum's March 2024 Dencun upgrade lowered layer 2 fees by changing how those networks post data to layer 1. Confirmations are often faster on layer 2, which processes activity before it settles to layer 1.
How do you move between them?
Bridges move assets between layer 1 and layer 2: you connect a wallet, choose the network and confirm. Some layer 2 networks run their own bridge, and some exchanges let you withdraw to one. Check the network name and the token contract before you confirm, because a wrong network can make funds hard to recover.
How does security differ?
Layer 1 security comes from the base chain's own consensus, enforced by its validators or miners. Layer 2 funds sit on the layer 2 network, while layer 1 contracts hold and settle them, so layer 2 depends on those contracts and bridges.
Frequently asked questions
Usually not. Most wallets that support the layer 1 network also let you add layer 2 networks, though you may need to add the details yourself.
The tokens may not appear, and recovery can be hard or impossible. Check the network before you confirm.
Sometimes. Some layer 2 networks take deposits through their own bridge, and some exchanges support withdrawals to layer 2.
Not always. A layer 2 token may be a wrapped or bridged version of the layer 1 token, with different contract rules and risks.
