Crypto wallet Phantom will end support for the Sui blockchain on Sept. 24, removing users' ability to manage SUI tokens and interact with Sui-based decentralized applications through the popular multi-chain wallet.
What This Means for Users
After Sept. 24, Phantom wallet users will no longer be able to view, send, or receive SUI tokens through the application. Users holding SUI in Phantom wallets should migrate their assets to another wallet that supports the Sui blockchain before the deadline. Sui's official wallet and other Sui-compatible wallets remain available for managing SUI holdings.
Phantom, which originally built its reputation as a Solana-focused wallet before expanding to support multiple blockchains including Ethereum and Bitcoin, appears to be streamlining its supported chains. The decision to drop Sui support suggests that the wallet provider is prioritizing resources on its core chains.
Why Wallets Drop Chain Support
Crypto wallets maintain support for each blockchain through dedicated integration infrastructure, including node connections, transaction formatting, and address management. Each supported chain requires ongoing engineering resources to maintain compatibility as the blockchain undergoes upgrades and protocol changes.
When a wallet drops support for a specific chain, it typically reflects a cost-benefit decision: the engineering resources required to maintain the integration outweigh the user demand for that particular chain. Wallets may also drop support when a blockchain undergoes significant protocol changes that require substantial re-engineering.
Impact on Sui Ecosystem
Sui, a Layer 1 blockchain built by Mysten Labs using the Move programming language, has been working to expand its ecosystem of decentralized applications and developer tools. Losing support from a major wallet like Phantom could create friction for users trying to interact with Sui-based applications.
However, Sui maintains its own native wallet and is supported by other multi-chain wallets. The ecosystem impact will depend on how many Phantom users were actively using SUI through the wallet and whether they migrate to alternative wallets or simply stop interacting with the chain.
What Users Should Do
SUI token holders using Phantom should move their assets to a Sui-compatible wallet before Sept. 24. Users with SUI staked in Sui-based protocols should verify that their chosen alternative wallet supports the necessary dApp connections. Phantom may provide additional guidance on the migration process as the deadline approaches.
