What Is Polygon (POL/MATIC)?

Polygon is a family of technologies built to make using Ethereum faster and cheaper. This guide explains what it does, how its token works, and the risks you should understand before getting involved.

What Polygon Is and Why It Exists

Polygon is a set of technologies designed to help Ethereum handle more transactions at lower cost. Ethereum is secure and widely used, but when the network gets busy, transactions slow down and gas fees can spike. Polygon aims to solve this by processing activity on faster, cheaper networks that still connect back to Ethereum.

Polygon launched in 2017 as Matic Network and rebranded to Polygon in 2021. It is best known as a scaling solution, a broad term for tools that increase a blockchain's capacity. Polygon is not a single chain but a collection of approaches, including a sidechain and several Layer 2 designs.

Example Sending a token transfer or swapping on a busy day on Ethereum's main network might cost several dollars in gas. The same action on Polygon's PoS chain often costs a fraction of a cent. That cost difference is the core reason many apps and users moved to Polygon.

How Polygon Scales Ethereum: Sidechain and Layer 2

It helps to understand the difference between a sidechain and a true Layer 2, because Polygon uses both. This distinction matters for security.

Approach	How it works	Security model
Polygon PoS (sidechain)	A separate chain running its own validators using proof of stake; it periodically checkpoints data to Ethereum.	Relies mainly on its own validator set, not fully on Ethereum.
Polygon zkEVM (Layer 2)	Bundles many transactions off-chain and posts a cryptographic proof to Ethereum.	Inherits more of Ethereum's security through validity proofs.

The original Polygon PoS chain is technically a sidechain: it is fast and cheap but secured by its own validators. Newer technology like Polygon zkEVM uses zero-knowledge proofs to settle to Ethereum, which is closer to a true Layer 2 security model. Polygon has also introduced a broader vision called Polygon 2.0 and the AggLayer, which aims to connect many chains so they feel like one network.

Because Polygon is EVM-compatible, developers can deploy the same smart contracts they wrote for Ethereum with little or no change. This is a major reason DeFi apps, games, and NFT projects adopted it.

POL and MATIC: The Token Migration

Polygon's native token was originally called MATIC. As part of the Polygon 2.0 plan, the project introduced a new token, POL, to serve as the main token across its expanding ecosystem. The migration from MATIC to POL began in 2024, with POL replacing MATIC as the gas and staking token.

POL is the successor to MATIC. The swap is generally 1:1, meaning one MATIC converts to one POL.
Where your tokens live matters. Tokens on exchanges are often migrated automatically by the exchange, while tokens in a self-custody wallet may require a manual migration step.
Watch for scams. Token migrations are a favorite cover story for fraud. Only follow official Polygon channels, and review how to avoid crypto scams before acting.

If you hold the token, confirm whether your platform has already handled the migration. Always verify contract addresses through official sources rather than links sent in messages or social media.

What POL Is Used For

Like many altcoins, POL has specific jobs inside its network rather than being just a speculative asset.

Paying gas fees: Transactions on Polygon networks are paid for in POL.
Staking and security: Validators stake POL to help secure the network and earn rewards; regular users can delegate tokens to validators.
Ecosystem coordination: Under Polygon 2.0, POL is designed to support multiple chains and the AggLayer, and to participate in governance.

Example A DeFi user might bridge a stablecoin like USDC onto Polygon to trade or lend it cheaply, while keeping a small amount of POL on hand to cover transaction fees. Without POL, transactions on the network cannot be paid for.

Risks and Honest Considerations

Polygon solves real problems, but it is not risk-free. Being clear-eyed about the downsides is part of using any crypto network responsibly.

Risk	What it means
Security trade-offs	The PoS sidechain depends on its own validators, which is a different and generally weaker guarantee than Ethereum's base layer.
Bridge risk	Moving assets between chains uses bridges, which have historically been targets for major hacks.
Competition	Polygon competes with other scaling solutions; adoption and value can shift over time.
Execution risk	Polygon 2.0, AggLayer, and the POL migration are ambitious and still maturing; roadmaps can change or face delays.
Price volatility	POL's price can swing sharply, like most crypto assets.

To use Polygon safely, learn the basics of crypto wallet types so you control your keys, and understand that the network's value depends on continued adoption, not guarantees. If you ever consider holding POL as an investment, treat it like any volatile asset and never commit money you cannot afford to lose.

This article is for educational purposes only and is not investment advice. Crypto assets are volatile and can lose value. Always do your own research and consider speaking with a qualified financial professional before making decisions.

NOONOO TRADING — join the free chat and watch live trading together.

Join free chat →

📈 Sign up on OKX for a trading fee discount

Get OKX fee discount →