Arbitrum vs Shardeum

Arbitrum4.2/5

VS

Shardeum3.2/5

Feature	ArbitrumVisit	ShardeumVisit
Ratings
Our score	4.2/5	3.2/5
User rating	No reviews yet	No reviews yet
Performance	4.5	3.5
Fees	4.5	4.0
Ecosystem	5.0	2.5
Decentralization	3.0	2.5
Developer experience	4.5	4.0
Specs
Layer	Layer 2	Layer 1
Consensus / design	Optimistic rollup	Proof of Stake
Native token	ARB	SHM
EVM compatible	Yes	Yes
Smart contract languages	Solidity, Rust (Stylus)	Solidity
Block time	~0.25 seconds	2-3 seconds
Finality	~7 days (dispute window)	Deterministic
Validators / sequencer	Not disclosed	24
Mainnet since	2,021	2,025
Sequencer	Centralized	Not applicable
Data availability	Ethereum L1 calldata / EIP-4844 blobs	Not disclosed
Gas paid in	ETH	SHM
Company
Founded	2021	2022
Headquarters	United States	Switzerland
Investors	Coinbase Ventures, IOSG Ventures, OKX Ventures, ParaFi Capital +1	Not disclosed
Strengths and weaknesses
Pros	Secured over $12.3B in value with 2.7 billion lifetime transactions by mid-2026 Supports smart contracts in Rust, C, and C++ alongside standard EVM Solidity Fast sub-second block times around 0.25 seconds with gas settled in ETH	Block production every 2 to 3 seconds with deterministic finality Full EVM compatibility works directly with MetaMask and standard Solidity tooling Native SHM delegation lets holders earn staking yield without running hardware Raised $23.6M to back long-term infrastructure and ecosystem growth
Cons	Sequencer remains centralized, creating liveness and transaction ordering dependencies ARB staking through the DAO does not distribute protocol fee revenue to holders Substantial non-circulating ARB supply remains subject to scheduled token unlocks	Relatively small active validator set of 24 nodes recorded in May 2026 Experienced a planned 25-minute network halt during the October 2026 v1.1.0 upgrade SHM staking yield is vulnerable to token inflation and lockup schedules Young application ecosystem with limited total onchain liquidity
Best for	High-frequency DeFi traders, Rust and Solidity smart contract developers, Teams launching dedicated Orbit appchains	Developers deploying EVM Solidity dApps, Real-world asset tokenization issuers, SHM holders seeking staking delegation

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