GridPlus Lattice1 Lattice1
A plan byGridPlus Lattice1
GridPlus Lattice1 is a desktop hardware wallet with a large touchscreen and two separate hardware environments: an internal Secure Enclave (with PUF and a CLDS tamper-detection mesh) and the SafeCards system — PIN-protected smartcards that act as a portable seed backup (each SafeCard holds a complete wallet, usable on any Lattice1). Unlike most cold wallets it connects via WiFi/Ethernet (not air-gapped) and is built for heavy DeFi/EVM use: it supports Ethereum, Bitcoin, Solana, BNB Chain and all EVM/L2 chains, integrating with MetaMask, Rabby, Frame and others. Price ≈€365 ($397), with 3 SafeCards included. The Lattice1 firmware is open-source and audited, but the Secure Enclave runs its own closed-source firmware.
Lattice1
- Price
- €365
What's included
- Desktop touchscreen
- Internal Secure Enclave (PUF + CLDS mesh)
- 3 SafeCards included
- Ethereum/Bitcoin/EVM/L2 support
- MetaMask, Rabby, Frame integration
Data & conditions
| Fund custody | Self-custody (funds in your control) |
|---|---|
| Type | Hardware (cold storage) |
| Source code | Partly open-source |
| Recovery | SafeCards (smartcard PIN-protette) + seed BIP-39 |
| Bitcoin-only | No |
| Supported chains | Ethereum, Bitcoin, Solana, BNB Chain, Arbitrum, Polygon |
| Price | €365 |
| Secure element | Yes |
| Air-gapped | No |
| Connectivity | WiFi, Ethernet |
| Built-in swap | No |
| Built-in staking | No |
| WalletConnect | Yes |
| Built-in fiat on-ramp | No |
| Security audits | Firmware Lattice1 auditato (indipendente) |
| Segment | B2C |
| MiCA / License status | Nessuna (hardware wallet self-custody) |
Strengths
- Secure Enclave with PUF and CLDS tamper-detection mesh; SafeCards system (portable backup, PIN-protected smartcards); large touchscreen that aids transaction verification; open-source, audited Lattice1 firmware; strong EVM/DeFi support (MetaMask, Rabby, Frame).
- Self-custody: funds stay in your wallet — the platform cannot touch them.
- No KYC: usable without identity verification.
- Self-hostable: you can run your own instance or node.
- Public security audits.
Weaknesses
- Not air-gapped: it connects via WiFi/Ethernet; the Secure Enclave firmware is closed-source; bulky and not portable (designed for a desk); high price (≈€365).
- No notable sovereignty drawback documented.
Verdict
Score 4.0/5, solid profile. In its favour: secure Enclave with PUF and CLDS tamper-detection mesh; SafeCards system (portable backup, PIN-protected smartcards); large touchscreen that aids transaction verification; open-source, audited Lattice1 firmware; strong EVM/DeFi support (MetaMask, Rabby, Frame). The trade-off to weigh: not air-gapped: it connects via WiFi/Ethernet; the Secure Enclave firmware is closed-source; bulky and not portable (designed for a desk); high price (≈€365).
On the Sovereignty lens the score is 4.5/5 (outstanding): the strength is fund control (5.0/5), while trustless / auditability (3.8/5) is the weak link.
Promp's editorial rating based on real fees and net annual cost. Promp reviews third-party products independently.
"Sovereignty" rating: score computed on privacy/anonymity (30%), fund control (20%), censorship resistance (20%), trustless/auditability (20%) and costs (10%). Same data, different weights.
FAQ
How much does the GridPlus Lattice1 cost?
The Lattice1 costs about €365 ($397) and includes 3 SafeCards. Additional SafeCard packs are sold separately (about $40 for two).
What are SafeCards?
They are PIN-protected smartcards that act as a portable seed backup: each SafeCard holds a complete wallet with all its addresses and can be used on any Lattice1 device. Three SafeCards are included with the Lattice1.
Is the GridPlus Lattice1 air-gapped?
No. Unlike many cold wallets, the Lattice1 connects to the internet via WiFi or Ethernet. Its security relies on the internal Secure Enclave and the isolation of its two hardware environments, not on an air-gap.
Sources
- Official service page Prezzo · Secure enclave · Safecards · Connettivita · +1 Data verified on Jun 20, 2026
- coinbureau.com Review terza · Open source firmware · Secure enclave closed Data verified on Jun 20, 2026
- docs.gridplus.io Sistema safecards Data verified on Jun 20, 2026