| Custody |
Non-custodial (hardware)
|
Non-custodial (hardware)
|
| Hardware / software |
Hardware
|
Hardware
|
| Chains and coins |
Bitcoin-only (BTC, multisig, PSBT)
|
EVM-focused; ETH, L2s, and ERC-20 tokens
|
| Security certification |
Secure element; Bitcoin-focused air-gapped design
|
SafeCard secure element; always-online Wi-Fi (not air-gapped)
|
| Key model |
Seed on device; duress PIN; brick-me PIN
|
Seed on SafeCard; swappable cards for multi-account
|
| Price |
Mk4 ~$157; Q ~$219
|
Lattice1 ~$397; SafeCards ~$40 each
|
| Platforms |
Standalone device; microSD and QR workflows
|
Wi-Fi touchscreen device; GridPlus Wallet web
|
| Bluetooth / mobile |
Air-gapped (QR/SD); no Bluetooth or USB data
|
Wi-Fi always-on (no air-gap); no Bluetooth
|
| Open source |
Partially open source
|
App partially open source; firmware proprietary
|
| Staking / DeFi / NFT |
Bitcoin only; no DeFi/NFT
|
Full DeFi and NFT via GridPlus Wallet
|