You're choosing between two wallets that both understand the assignment: Bitcoin, nothing else. I like this matchup. Let me break down the differences that actually matter.
I've handled both wallets personally. Went through the setup, tested the signing, poked at the edges. Here's what matters.
The Bottom Line
Both are solid Bitcoin-only choices, but BitBox02 Bitcoin-Only edges out the competition with superior features and community trust.
How They Compare
The specs that matter for Bitcoin security.
| Feature | BitBox02 Bitcoin-Only | Krux |
|---|---|---|
| Price | $150 | $40 |
| Bitcoin-Only | Yes | Yes |
| Open-Source | Yes | Yes |
| Air-Gapped | No | No |
| Secure Element | ATECC608A (same as Coldcard) | None (software security) |
| Connection | USB-C | QR codes only (air-gapped) |
Under the Hood: Security
Security is the whole point. Everything else is secondary. Here's how these two handle it:
- BitBox02 Bitcoin-Only: Secure element with open-source firmware. Swiss engineering approach.
- Krux: Stateless DIY signing device. Similar concept to SeedSigner but supports more hardware.
Both wallets are open-source. Good. That means you can verify the code yourself, or rely on the security researchers who already have. This is the baseline for serious Bitcoin storage.
Why BitBox02 Bitcoin-Only Wins
- Both are Bitcoin-only (good choice either way)
- Swiss-made quality
- Fully open-source
Best for: Users who value Swiss quality and design, Those who want open-source with proven secure element, Minimalists who prefer clean interfaces, USB-only workflows.
Where Krux Falls Short
- DIY assembly required
- Less polished UX
- No commercial support
My Recommendation
The BitBox02 Bitcoin-Only is underrated. It lacks the air-gap capability of Jade Plus or Coldcard, which matters for serious stacks. But the build quality is excellent, the app is clean, and the open-source firmware is well-audited. At $150, it's priced right. If you don't need air-gapped signing and want something that just works, this is a solid choice. The lack of QR codes is its main limitation.
What You Pay
Krux costs less at $40, but the $110 you'd save isn't worth the trade-offs. BitBox02 Bitcoin-Only earns its price tag.
What People Ask
Do BitBox02 Bitcoin-Only and Krux support multisig?
Most modern hardware wallets support multisig setups. Check the individual reviews for specifics on each wallet's multisig implementation and supported coordinators.
Are BitBox02 Bitcoin-Only and Krux Bitcoin-only?
Yes, both are Bitcoin-only wallets with no altcoin support.
Which should I buy, BitBox02 Bitcoin-Only or Krux?
BitBox02 Bitcoin-Only. It's Bitcoin-only, which means cleaner code and a smaller attack surface.
Can I use my existing seed phrase?
Both wallets support standard BIP39 seed phrases. You can import your existing 12 or 24-word recovery phrase from any compatible wallet.
Full Reviews
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