Home Academy Compare Polygon vs Arbitrum: L2 Scaling Solutions Compared
Layer 2

Polygon vs Arbitrum: Which is Better?

Compare Polygon and Arbitrum Layer 2 solutions. Learn how Polygon's multi-chain approach differs from Arbitrum's optimistic rollup in fees, speed, and ecosystem.

Updated 2026-03-08 Layer 2 Comparison
PO
Polygon (POL)
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AR
Arbitrum (ARB)
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Polygon vs Arbitrum at a Glance

Feature
POL
ARB
Technology
PoS sidechain + zkEVM rollup (multi-solution approach)
Optimistic rollup with Nitro execution engine
Security Model
PoS chain has own validator set; zkEVM inherits Ethereum security
Inherits Ethereum L1 security via optimistic rollup
Transaction Finality
PoS: ~2 seconds; zkEVM: minutes with ZK proofs
Near-instant L2 confirmation; 7-day L1 settlement window
Native Token
POL (migrated from MATIC in 2024)
ARB
Gas Token
POL used for gas on Polygon PoS
ETH used for gas on Arbitrum
DeFi Ecosystem
Large DeFi ecosystem: QuickSwap, Aave, Uniswap
Largest L2 DeFi ecosystem: GMX, Camelot, Aave, Uniswap
Scalability Strategy
AggLayer unifying PoS, zkEVM, and CDK chains
Arbitrum Orbit framework for custom L3 chains
Developer Tooling
Polygon CDK for custom ZK-powered chains
Stylus for Rust/C/C++ smart contracts
Transaction Fees
Very low fees on PoS; competitive on zkEVM
Low fees, further reduced after EIP-4844
Withdrawal Time
PoS: ~30 minutes; zkEVM: once ZK proof verified
~7 days for optimistic rollup challenge period
Layer 2

What is Polygon?

Polygon is a multi-chain scaling platform for Ethereum. Originally a PoS sidechain (Polygon PoS), it has expanded to include zkEVM rollups and the AggLayer for cross-chain interoperability. Its native token migrated from MATIC to POL in 2024.

Ticker: POL Since 2020
Layer 2

What is Arbitrum?

Arbitrum is an Ethereum Layer 2 scaling solution developed by Offchain Labs that uses optimistic rollup technology to process transactions off-chain while inheriting Ethereum's security.

Ticker: ARB Since 2021

Key Differences

Polygon offers multiple scaling solutions (PoS sidechain, zkEVM, CDK) under one umbrella, while Arbitrum focuses on optimistic rollup technology.

Arbitrum inherits full Ethereum security from day one, whereas Polygon PoS relies on its own validator set with a separate security model.

Polygon uses POL as its native gas token, while Arbitrum uses ETH, meaning Arbitrum users do not need a separate token for gas fees.

Polygon's zkEVM provides faster finality through zero-knowledge proofs, compared to Arbitrum's 7-day optimistic challenge window.

Arbitrum has the largest DeFi TVL of any L2, while Polygon has broader adoption in gaming, NFTs, and enterprise partnerships.

Polygon's AggLayer aims to unify liquidity across chains built with CDK, while Arbitrum Orbit enables custom L3 application chains.

Which Should You Choose?

Polygon offers a versatile multi-solution ecosystem well-suited for gaming, enterprise, and applications needing fast finality via zkEVM. Arbitrum excels in DeFi with the deepest L2 liquidity and full Ethereum security inheritance. The best choice depends on your use case and priorities.

Frequently Asked Questions

What happened to MATIC?
MATIC was migrated to POL in September 2024 as part of Polygon 2.0. POL serves as the native gas and staking token across the Polygon ecosystem, including the AggLayer.
Which has lower transaction fees?
Polygon PoS generally has lower fees. However, both Polygon zkEVM and Arbitrum offer competitive fees that are significantly cheaper than Ethereum mainnet.
Does Polygon PoS have the same security as Ethereum?
No. Polygon PoS is a sidechain with its own validator set. However, Polygon zkEVM is a true rollup that inherits Ethereum's security through zero-knowledge proofs.
Why does Arbitrum use ETH for gas instead of ARB?
Arbitrum uses ETH for gas to maintain a seamless experience for Ethereum users. ARB is a governance token used for voting in the Arbitrum DAO, not for gas payments.
Can I bridge assets between Polygon and Arbitrum?
Yes. Cross-chain bridges like Stargate, Hop Protocol, and Across allow asset transfers between Polygon and Arbitrum. Always use reputable bridges and verify contract addresses.
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