| Custody |
Non-custodial (hardware)
|
Non-custodial (hardware)
|
| Hardware / software |
Hardware
|
Hardware
|
| Chains and coins |
EVM-focused; ETH, L2s, and ERC-20 tokens
|
1,000+ coins; BTC, EVM, and major L1/L2
|
| Security certification |
SafeCard secure element; always-online Wi-Fi (not air-gapped)
|
CC EAL7 (highest consumer grade); fully air-gapped
|
| Key model |
Seed on SafeCard; swappable cards for multi-account
|
Offline seed; Graphene metal backup plate
|
| Price |
Lattice1 ~$397; SafeCards ~$40 each
|
ZERO ~€398 (~$430)
|
| Platforms |
Wi-Fi touchscreen device; GridPlus Wallet web
|
iOS, Android companion; QR/NFC tap
|
| Bluetooth / mobile |
Wi-Fi always-on (no air-gap); no Bluetooth
|
Air-gapped QR (no Bluetooth)
|
| Open source |
App partially open source; firmware proprietary
|
Partially open source; firmware closed
|
| Staking / DeFi / NFT |
Full DeFi and NFT via GridPlus Wallet
|
Portfolio view via Liquid app; limited native DeFi
|