Samsung Wallet will add USDC support through Sui as part of a new stablecoin service scheduled to launch across eligible U.S. Galaxy devices during the final week of October. The rollout will make USDC transfers available through Samsung’s native wallet interface without requiring users to install a separate crypto wallet or manage transaction gas in SUI.
Samsung Electronics America confirmed the rollout in its official stablecoin announcement, while the Sui Foundation detailed its role as a blockchain infrastructure partner. The feature will be available across approximately 82 million compatible Galaxy devices in the United States. That figure measures devices capable of accessing the service, not 82 million stablecoin users or activated wallets.
USDC will be the first stablecoin supported by Samsung Wallet under the initiative. Samsung says users will be able to send it to compatible crypto wallets internationally and, through separate payment infrastructure, to qualifying bank accounts in more than 60 countries where recipients can receive local currency. The product therefore combines blockchain transfers with conventional cross-border payout rails rather than functioning solely as an onchain wallet.
Sui Removes the Need to Hold SUI for Gas
On the Sui side, the integration relies on protocol-level gasless stablecoin transfers introduced on mainnet in May. Eligible peer-to-peer USDC transactions can execute with a network fee of $0 and without requiring the sender to maintain a separate SUI balance. The mechanism removes the native-token requirement from supported stablecoin transfers rather than simply having another party reimburse the gas afterward.
The capability was already part of Sui’s production payments stack before the Samsung announcement and has supported several stablecoins, including USDC. Its mechanics have also been examined through Sui’s move toward protocol-level gas-free stablecoin transfers, while other payment providers have integrated native USDC on Sui for spending and payout flows.
SUI itself will not be supported in Samsung Wallet at launch. The initial integration is specifically designed around USDC as a payment asset, separating use of Sui’s blockchain infrastructure from consumer exposure to the network’s native token.
Samsung Keeps Custody Outside the Phone Maker
Samsung’s own documentation also clarifies the custody structure. Bastion will provide regulated stablecoin accounts, custody and money-movement infrastructure, while Coinbase will serve as its subcustodian through Coinbase Prime Vault. Samsung explicitly states that it is not acting as a bank, money transmitter or digital-asset custodian and does not itself hold customer funds.
Galaxy devices instead function as the access and authentication layer, with biometric verification required to initiate transfers. Blockchain connectivity comes from technical partners including Sui and Solana. Sui is therefore one settlement rail within a broader regulated wallet architecture, rather than the custodian or exclusive network behind Samsung’s stablecoin service.
Samsung expects stablecoin functionality eventually to expand into additional markets and potentially support online and in-store payments, but it has not announced dates for those phases. Availability will depend partly on regulation in each jurisdiction. The broader infrastructure push coincides with Sui’s effort to support higher-frequency financial applications, including its recent preparations for machine-driven and agentic payment workloads.
The immediate milestone is considerably more concrete: eligible U.S. Galaxy devices are scheduled to gain built-in USDC access in the final week of October. Actual adoption will only become measurable after launch through activated accounts, transaction volume and recurring usage, rather than from the 82 million-device distribution footprint alone.