BitFi BTC vs Function FBTC: yield or wrapped BTC? (2026)

BitFi BTC and Function FBTC serve different purposes. BitFi is a CeDeFi platform offering bfBTC, a yield-bearing liquid staking token for Bitcoin, and bfUSD, a stablecoin with yield strategies. Its stated allocation is 90% delta-neutral positions and 10% tactical positions, and returns depend partly on off-chain trading. Function issues FBTC, a wrapped Bitcoin asset backed by core contributors Antalpha Prime, Mantle and Galaxy Digital. Its role is closer to providing a wrapped BTC asset for use across integrations and vaults than to offering BitFi-style products directly. Function has substantially higher listed TVL: about $666 million compared with BitFi’s about $91.5 million. That size may matter if you are comparing the scale of the platforms, but it does not guarantee safety, returns or redemption conditions. Choose based on whether you want a yield-focused platform or a wrapped Bitcoin asset.

Neither project publishes its fees. BitFi does not state management, performance, deposit or withdrawal charges, so check its documentation and app before depositing. Its bfUSD principal is shown with a one-year term; confirm any lock-up and redemption conditions before committing funds. Function does not publish minting, redemption, swapping or bridging fees. If you use a Function vault or a third-party lending market, that provider may set additional costs and terms. Function’s vault APY figures are estimates, not guaranteed returns, and BitFi’s current stablecoin yield is unclear: its live APY figures were blank and a portfolio snippet showed 0% for bfUSD. Do not compare advertised yield figures as if they were confirmed, current net returns. For both products, verify the applicable costs and withdrawal rules for the specific route or strategy you plan to use.

Both products involve risks beyond holding Bitcoin directly. BitFi says assets are held through smart contracts and Ceffu custody, but its yield also depends on CeFi trading strategies. That creates counterparty and strategy risks that an on-chain audit cannot remove. BitFi has no audits listed, and its homepage refers to an audit report without naming the auditors; its claimed drawdown is not a guarantee. Function has two audits listed and offers a Proof of Assets page, but audit details and custodian arrangements are not public. FBTC is a wrapped asset, so users depend on the issuer, custodians and smart contracts working as described. Using vaults adds the risks of third-party lending markets and strategy managers. For either project, read the official risk disclosures and verify the scope of any audits and the custody and redemption terms before depositing.

BitFi’s product split is useful if you want to choose between Bitcoin-linked yield through bfBTC and stablecoin strategies through bfUSD. It also offers a dashboard and points program, while its strategy descriptions distinguish Pulsar, described as higher-yield with moderate risk, from Horizon, described as the lowest-risk option. Those descriptions are not guarantees of performance. Function’s appeal is its wrapped BTC and claimed network of more than 30 integrations, with vaults on Ethereum and Solana. It also provides a Proof of Assets page and Dune dashboard for reserve transparency. However, some homepage fields, including TVL, holders and vault information, have rendered blank, zero or NaN, making live figures difficult to verify. Neither option is a substitute for checking whether the product, vault and redemption path are available and suitable for you.

Choose BitFi BTC if you specifically want bfBTC or bfUSD and are comfortable evaluating a strategy that relies partly on off-chain trading and a custodian. Its stated allocations and named custody provider offer some detail, but its audit information, fees and current yield need closer checking. Choose Function FBTC if you want a wrapped Bitcoin asset with a larger listed TVL, two audits listed, and integrations that include vaults on Ethereum and Solana. That does not remove the risks tied to custody, the wrapper or third-party vaults. If your priority is avoiding those additional dependencies, neither product is equivalent to simply holding Bitcoin. Before using either, confirm eligibility, redemption terms, fees and the relevant risk disclosures for your location.