Near vs Sei

NEAR Protocol employs Nightshade sharding where each block contains chunks from multiple shards, and Doomslug consensus gives 1‑second near‑finality. The JavaScript SDK and Contract Aurora EVM make onboarding Web2 developers easier. In 2024 NEAR launched a chain‑signature wallet standard that leverages passkeys for seedless login.

Sei is a parallelised Cosmos‑SDK Layer‑1 optimized for order‑book exchanges, using Twin‑Turbo consensus to reach 300–400 ms finality. Its built‑in matching engine lets dApps compose on a shared liquidity layer, and fee markets are denominated in SEI with bulk‑order discounts. The ‘V2’ upgrade adds EVM compatibility via SeiDB and WASM contracts side‑by‑side.