Users of hardware crypto wallets have begun weighing their devices following the Ledger scandal involving the discovery of spy implants. The goal is to compare the actual weight to factory specifications without opening the case.

Reference weights for Ledger models

Ledger: Nano X — 34g; Nano S Plus — 21g; Flex — 58g; Stax — 44g; Nano Gen5 — 46g.

Trezor: reference weights

Trezor: Safe 7 — 45g; Safe 5 — 23g; Safe 3 — 14g.

Other brands and their weights

BitBox02 — 12g; OneKey Pro — 65g; Keystone 3 Pro — 103g; SafePal S1 Pro — 126g.

Matching the device's weight to factory specifications does not guarantee the absence of implants, as attackers may offset the weight by altering other components.