Keycard Shell vs Ledger Nano X Keycard Shell leads by 6 points.
Keycard Shell scores 6 points above Ledger Nano X, led by rebuildable firmware, secure element, and maker independence. Keycard Shell ranks #6 and Ledger Nano X #13 of 23 published hardware wallets. Every term of the gap is on the ledger below; the inputs are on the audit receipt.
Keycard Shell69
vs
Ledger Nano X63
Scores are out of 100; published scores fall within 41–99 · ranks #6 and #13 of 23
Keycard Shell scores 6 points above Ledger Nano X, led by rebuildable firmware, secure element, and maker independence.
Keycard Shell #6 of 2369
Ledger Nano X #13 of 2363
Scores are out of 100; published scores fall within 41–99; a bar is empty at 41 and full at 99.
Why, term by termKeycard Shell leads on 3 of 6 published criteria; Ledger Nano X on 1. The terms sum to the gap.
TermKeycard ShellLedger Nano XWeightPoints
Rebuildable firmware7/104/106.5+5.1for Keycard Shell+2.6 of 32
Secure element10/109/106.5+1.7for Keycard Shell+0.9 of 32
Fund-loss record5/1010/102.6−3.4for Ledger Nano X−1.8 of 32
Maker independence10/106/102.6+2.7for Keycard Shell+1.4 of 32
Net of the terms+6.1
Criteria roundingThe criteria block is rounded to whole points before it is spread−0.1
Reproduced gap+6.0
Weight is in points of the 86-point weighted total. Points are score points of the gap between the two.
Keycard ShellScore 69An air-gapped QR signer with a screen around an EAL6+ Keycard — firmware rebuilt and matched, €129Strength: Secure element you can look up — 10/10Watch-out: First shipped in 2025, so it has a short record in buyers' handsLedger Nano XScore 63Seven years without a device-level fund loss, an EAL5+ chip you can look up — Bluetooth and USB-C, $99Strength: Years in buyers' hands without a device-level fund loss — 10/10Watch-out: Its ST33J2M0 secure element is certified at EAL5+, one level below the Nano S Plus's EAL6+ chip, so it scores 9 rather than 10
Quick facts
At a glance
3 of 5 rows read the same for both.
FactKeycard ShellLedger Nano X
One-time priceSnapshotKeycard Shell (with two Keycards) at €129 including VAT (regular €149) on https://keycard.tech/products/keycard-shell, read 1 October 2026; no US dollar list price is published.Ledger Nano X: the Offer on https://shop.ledger.com/products/ledger-nano-x reads "price":"99","priceCurrency":"USD", read 2 October 2026. The same page shows a visitor in Germany "€99" (read 28 October 2026).
Asset coverageEditorial——
Region fitSnapshotus, europe, globalus, europe, global
Custody modelEditorialSelf-custody: the keys stay on the deviceSelf-custody: the keys stay on the device
Security postureSnapshotSecure element, EAL6+ certified; partly open source; air-gapped signing.Secure element, EAL5+ certified; partly open source; no air-gapped signing.
From the published criteria
Which should you pick?
Keycard Shell
69#6 of 23
Leads
Pick it when
Pick Keycard Shell if rebuildable firmware matters most — it scores 7/10 to Ledger Nano X's 4/10 there (weight 27).
Strength
Secure element you can look up — 10/10
Tradeoff
First shipped in 2025, so it has a short record in buyers' hands
Ledger Nano X
63#13 of 23
Pick it when
Pick Ledger Nano X if fund-loss record matters most — it scores 10/10 to Keycard Shell's 5/10 there (weight 11).
Strength
Years in buyers' hands without a device-level fund loss — 10/10
Tradeoff
Its ST33J2M0 secure element is certified at EAL5+, one level below the Nano S Plus's EAL6+ chip, so it scores 9 rather than 10
Self-identify in 10 seconds
Which one is actually for you?
Keycard ShellLeads
Choose Keycard Shell if secure element matters most
Secure element: 10/10 against 9/10 for Ledger Nano X (weight 27)
Rebuildable firmware: 7/10 against 4/10 for Ledger Nano X (weight 27)
Maker independence: 10/10 against 6/10 for Ledger Nano X (weight 11)
Keycard ShellScore 69An air-gapped QR signer with a screen around an EAL6+ Keycard — firmware rebuilt and matched, €129Strength: Secure element you can look up — 10/10Watch-out: First shipped in 2025, so it has a short record in buyers' hands
Ledger Nano X
Choose Ledger Nano X if fund-loss record matters most
Fund-loss record: 10/10 against 5/10 for Keycard Shell (weight 11)
Ledger Nano XScore 63Seven years without a device-level fund loss, an EAL5+ chip you can look up — Bluetooth and USB-C, $99Strength: Years in buyers' hands without a device-level fund loss — 10/10Watch-out: Its ST33J2M0 secure element is certified at EAL5+, one level below the Nano S Plus's EAL6+ chip, so it scores 9 rather than 10
Criterion by criterion
Scorecard
Published criteria · weight in points of 8612 of 12 cells scored. Strength is read from the evidence file; the weight is the published one. Methodology
Secure element
by 1 of 10weight 6.5 of 86Keycard Shell leads
Keycard Shell10/10 out of 10
Ledger Nano X9/10 out of 10
Rebuildable firmware
by 3 of 10weight 6.5 of 86Keycard Shell leads
Keycard Shell7/10 out of 10
Ledger Nano X4/10 out of 10
Genuine check
weight 2.9 of 86Tie
Keycard Shell7/10 out of 10
Ledger Nano X7/10 out of 10
Checkable keys
weight 2.9 of 86Tie
Keycard Shell0/10 out of 10
Ledger Nano X0/10 out of 10
Maker independence
by 4 of 10weight 2.6 of 86Keycard Shell leads
Keycard Shell10/10 out of 10
Ledger Nano X6/10 out of 10
Fund-loss record
by 5 of 10weight 2.6 of 86Ledger Nano X leads
Keycard Shell5/10 out of 10
Ledger Nano X10/10 out of 10
Score dimensions
weights sum to 86
The published score is five dimensions, each weighted for the category. "Published criteria" is the criteria block above; the other four are the engine's own terms — availability, friction, trust record, measured data. Each bar is one side's points out of that dimension's maximum; the weight beside the name is its points of the 86-point weighted total. The published criteria above can fill 24 of the block’s 30. A weight marked “constant here” belongs to a dimension every ranked product in the category holds at the same value: it still counts in the total, and it orders nothing here.
Availabilityweight 20 of 86 · constant here
Keycard Shell14/20Ledger Nano X14/20
Tie
Published criteriaweight 30 of 86
Keycard Shell17/30Ledger Nano X14.7/30
Keycard Shell leads
Frictionweight 10 of 86 · constant here
Keycard Shell2.7/10Ledger Nano X2.7/10
Tie
Trust recordweight 8 of 86 · constant here
Keycard Shell3.2/8Ledger Nano X3.2/8
Tie
Measured dataweight 18 of 86 · constant here
Keycard Shell5.5/18Ledger Nano X5.5/18
Tie
Decision rulePublished order
Choose Keycard Shell unless the term Ledger Nano X leads on is the one you are buying.
Pick Ledger Nano X if fund-loss record matters most — it scores 10/10 to Keycard Shell's 5/10 there (weight 11).
The published order weighs every criterion the same way for everyone. To weigh them your way, run .
From the published order
Next best action
If this isn't your case
Other matchups worth comparing
How you can lose money here, and what the ranking scores
Key failure: your own keys are made, shown or recovered unsafely.
Scored by Secure element you can look up · 27% (Keycard Shell 10/10, Ledger Nano X 9/10)
Scored by Firmware anyone can rebuild and match · 27% (Keycard Shell 7/10, Ledger Nano X 4/10)
Scored by Proof the device is genuine and unmodified · 12% (Keycard Shell 7/10, Ledger Nano X 7/10)
Scored by Key creation and signing you can check · 12% (Keycard Shell 0/10, Ledger Nano X 0/10)
Scored by Sign and recover without the maker · 11% (Keycard Shell 10/10, Ledger Nano X 6/10)
Scored by Years in buyers' hands without a device-level fund loss · 11% (Keycard Shell 5/10, Ledger Nano X 10/10)
Every failure family that applies to this category is scored, except Information failure, which the provider pages show as a fact.
Questions
Frequently asked questions
Keycard Shell scores 6 points above Ledger Nano X, led by rebuildable firmware, secure element, and maker independence. Published scores, out of 100: Keycard Shell 69 (rank 6 of 23 hardware wallets), Ledger Nano X 63 (rank 13 of 23).
Reviewed means both products compared here was read against its sources on or after that date; every ranked category is re-read at least every 45 days. Models research, extract and parse. A deterministic engine ranks. Every quote passes an adversarial refute pass.
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