Ledger Nano Gen5 Review

The Ledger Nano Gen5 scores 7.0 out of 10 in our hardware wallet ratings, rescored from current evidence on 1 November 2026. The basis is desk research: Ledger's product page, its signer comparison guide, its supported-assets page and its Academy explainer on open source, updated 20 October 2026. We did not test a device. The Gen5 scores well for a named, certified secure element and for broad asset support. It scores 5 on two criteria: the firmware is only partly open to inspection, and it cannot sign without a connection.

How the Nano Gen5 scores in hardware wallets

Five criteria apply in this category. Each is marked 0 to 10 and carries equal weight, as described in our ratings methodology.

The overall score is a plain average: (7 + 9 + 5 + 5 + 9) / 5 = 35 / 5 = 7.0.

Change from the previous scoring: open source rose from 3 to 5. The July review found no firmware published for inspection on the pages it checked. Ledger's Academy explainer, updated 20 October 2026, now sets out which layers are public and links their GitHub repositories. It also says which layer stays closed. The other four marks are unchanged, and the overall score moves from 6.6 to 7.0.

Correction: the previous review said Ledger designs its secure-element chips in-house. That was wrong. The ST33K1M5 is made by STMicroelectronics, and Ledger's own explainer refers to its agreement with that chip maker.

Strongest criteria: the chip and the asset list

Secure element (9)

Ledger names both the part, an ST33K1M5, and its certification, Common Criteria EAL6+. Being able to check both is what the criterion rewards. The Trezor Safe 5 now meets the same standard and also scores 9. The 10s go to designs with several independent chips: the Coldcards and the Keystone 3 Pro.

Asset coverage (9)

The product page lists more than 500 assets supported through Ledger Wallet. For anything outside the app it points to third-party wallets and speaks of thousands of coins and tokens, though Ledger says it does not guarantee those wallets' compatibility. That puts it level with Trezor and one point below Keystone's 5,500+ claim.

Price & value (7)

$179 falls in the category's $160 to $200 band. The mark rises to 7 because a backup accessory ships in the box: the Ledger Recovery Key, an NFC card that stores a copy of the recovery phrase behind its own PIN. Ledger calls the card a complement to the paper sheet, not a replacement. The product page itself loaded no device-only price when checked.

Weakest criteria: two deficiencies

Open source (5)

Ledger's explainer sorts its code into three groups:

• Public: Ledger Wallet under the MIT licence, the Wallet API, the Secure SDK with its crypto library, and the on-device blockchain apps.
• Partly public: the device operating system, which Ledger calls "partially reviewable and verifiable".
• Closed: the low-level code that drives the secure element's hardware blocks, which Ledger says its chip-supplier agreement prevents it from publishing.

The explainer documents no reproducible builds and does not address hardware design files. Outsiders therefore cannot rebuild the firmware and compare it with what runs on the device. Ledger says a third-party lab audits the whole operating system before each release. That is a different kind of assurance, and it relies on trusting the lab.

Air-gap & verification (5)

Every transaction reaches the Gen5 over USB-C or Bluetooth, and NFC is used for the Recovery Key. No QR camera or microSD route is listed, so a fully air-gapped workflow is not possible. Verification happens on the touchscreen, where Ledger says its Clear Signing and Transaction Check features show what is being signed. The same 5 applies to the BitBox02 and the Trezor Safe 5.

What the score does not cover

• Ledger Recover. The optional subscription splits encrypted key material among three custodians and needs an identity check to restore. It is a service choice, not a device criterion.
• Incident history. No criterion scores incidents. Ledger's own reports cover the 2020 customer-data leaks and the December 2023 Connect Kit library attack. They describe data exposure and malicious transactions that users signed, not extraction of keys from devices. Our phishing guide covers the follow-on scams.
• App services. On-ramps and dapp connections inside Ledger Wallet are not scored.
• Screen readability, battery and durability. We did not handle the device.

Nano Gen5 vs the closest rated peers

The Trezor Safe 5 is the closest like-for-like device. Both have a named EAL6+ chip, both use connected signing, and both have broad asset support. Trezor finishes 1.4 points ahead because its firmware is fully public with reproducible builds and it lists for $70 less. The Gen5 ties Blockstream Jade Plus at 7.0, and Jade is listed first alphabetically. The two are near opposites: Ledger is stronger on the chip and assets, Jade on open code and cable-free signing.

Who it suits

On the scored evidence, the Gen5 fits people who want a certified, named secure element and broad asset support, and who are content to sign over USB-C or Bluetooth. It also suits anyone who wants a backup card in the box. It is a weaker fit for anyone who wants to verify firmware themselves, or who needs to sign with no connection at all.