Chained Future Cold wallet datasheets

Side by side · rev.

Tangem vs Ledger

Pick Tangem if you manage crypto from an NFC phone and would rather keep backup cards than a written phrase; pick a Ledger Nano if you want to confirm transactions on the device's own screen, work from a desktop, want to create a passphrase wallet, or need Bitcoin multisig with compatible coordinator software.

Side A
Tangem
Side B
Ledger
Model
  • Tangem Wallet
Models · 2
  • Ledger Nano X
  • Ledger Nano S Plus
Price at maker
$54.90 to $69.90 checked 14 Oct 2026
Price span
$69 to $99 checked 14 Oct 2026
Rows that differ
11 of 16
Cells not verified
9 of 48
Sheets merged
3
Values checked
Page revised

Tangem

Ledger

Front views at one scale from published sizes, in mm · bar = 10 mm · dashed = size not published, not to scale

Price, size and screen, dimensioned

One scale per chart · zero datum on the left · dashed run = listed range

Price at the maker's shopdollars, as listed by each shop
  • Tangem Wallet: $54.90 to $69.90src
  • Ledger Nano X: $99src
  • Ledger Nano S Plus: $69src
  • 1Tangem Wallet: listed as $54.90 for 2 cards, $69.90 for 3 cards
Screen diagonalinches
  • Tangem Wallet: Diagonal not publishedsrc
  • Ledger Nano X: 1.1 insrc
  • Ledger Nano S Plus: 1.1 insrc
Weightgrams, as published
  • Tangem Wallet: Not verified
  • Ledger Nano X: 34 gsrc
  • Ledger Nano S Plus: 21 gsrc
Thicknessmillimetres, as published
  • Tangem Wallet: Not verified
  • Ledger Nano X: 11.7 mmsrc
  • Ledger Nano S Plus: 8.2 mmsrc

Which fits you

4 of 6 answers differ between the devices

Six plain questions, each answered from one line of each spec sheet. The value the answer rests on is printed under it; the merged table below has every value with its source.

Question Tangem Tangem Wallet Ledger Ledger Nano X Ledger Ledger Nano S Plus
Its own screenΔ answers differ Check the amount and address on the wallet itself. No Display: No screen; transactions are reviewed in the Tangem phone app Yes Display: Monochrome OLED, 1.1 inches, 128 x 64, non-touch Yes Display: Monochrome OLED, 1.1 inches, 128 x 64, non-touch
Bluetooth or NFCΔ answers differ A radio link in the maker's list of connections. Yes Connectivity: NFC Yes Connectivity: USB-C, Bluetooth BLE 5.2 No Connectivity: USB-C
QR or air-gapped signing Can sign with no cable or radio link to the online device. No Connectivity: NFC No Connectivity: USB-C, Bluetooth BLE 5.2 No Connectivity: USB-C
Open-source firmwareΔ answers differ The code it runs is published for anyone to read. No Open-source firmware: No Partly Open-source firmware: Partial Partly Open-source firmware: Partial
Backup in shares Split the backup into shares; a set number of them restores the wallet. Not verified Not verified Not verified
Built-in batteryΔ answers differ A battery inside, to charge or replace. No Battery: No charging required. Yes Battery: Up to 5 hours normal use No Battery: No battery
  • Yes
  • Partly or qualified
  • No
  • Unknown or unclear
  • Answers differ

Devices on this sheet that answer yes

Its own screen
Ledger Nano X, Ledger Nano S Plus
Bluetooth or NFC
Tangem Wallet, Ledger Nano X
QR or air-gapped signing
No device on this sheet
Open-source firmware
No device on this sheet
Backup in shares
No device on this sheet
Built-in battery
Ledger Nano X

Each side at a glance

not on the other side

Side A · Tangem

  • Tangem Wallet

    From its datasheet Suits phone-first holders who want to sign by tapping a card and would rather keep backup cards than a written phrase; less suited to anyone who wants to check transactions on the device itself or rely on open-source firmware.

    • NFC (not listed on the Ledger side)
    Distinctive
    Tap-to-sign card set with optional seed-phrase setup and backup cards.src
    Recovery on other wallets
    Seedless setup has no external seed copy. Optional generated/imported BIP39 phrases can be recovered elsewhere; the original phrase must have been retained.src

Side B · Ledger

  • Ledger Nano X

    From its datasheet Suits people who want a Nano-sized signer they can use from a phone over Bluetooth or a computer over USB-C, and who accept a battery and a radio link.

    • Bluetooth (not listed on the Tangem side)
    • Battery (not listed on the Tangem side)
    Distinctive
    Nano-format signer with Bluetooth connectivity and an OLED display.src
    Recovery on other wallets
    Accounts can be recovered on other hardware or software wallets that support the same standards (BIP32/BIP39/BIP44). Asset and derivation-path compatibility still matters.src
  • Ledger Nano S Plus

    From its datasheet Suits people who sign at a computer or Android phone over a cable and want Ledger Wallet's coin range without a battery or a Bluetooth radio.

    No listed features from our chip set

    Distinctive
    USB-connected, battery-free signer for desktop and Android.src
    Recovery on other wallets
    Accounts can be recovered on other hardware or software wallets that support the same standards (BIP32/BIP39/BIP44). Asset and derivation-path compatibility still matters.src

Chips are shown only where the device's spec record supports them: open-source firmware, a Bitcoin-only edition, QR or air-gapped signing, Bluetooth, NFC, a built-in battery and a touchscreen. A missing chip means the record does not list the feature or we could not verify it.

The spec sheets, merged

Marked rows differ. A dot means not verified.

Specification TangemTangem WalletLedgerLedger Nano XLedgerLedger Nano S Plus
Δ differs:Price at maker $54.90 to $69.90 (2 cards: $54.90; 3 cards: $69.90)src $99src $69src
Δ differs:Released 2023src 2019src 2022src
Δ differs:Display No screen; transactions are reviewed in the Tangem phone appsrc Monochrome OLED, 1.1 inches, 128 x 64, non-touchsrc Monochrome OLED, 1.1 inches, 128 x 64, non-touchsrc
Δ differs:Connectivity NFCsrc USB-C, Bluetooth BLE 5.2src USB-Csrc
Δ differs:Secure element EAL6+; Samsung collaboration published for cards; exact chip name not verifiedsrc ST33J2M0src ST33K1M5src
Δ differs:Open-source firmware Nosrc Partialsrc Partialsrc
Coins supported Not verified 500+ through Ledger Wallet; thousands through third-party walletssrc 500+ through Ledger Wallet; thousands through third-party walletssrc
Bitcoin-only edition Not verified Not verified Not verified
Δ differs:Passphrase Import supported; creating a new passphrase wallet is not supported according to the cited guide.src Yessrc Yessrc
Multisig Not verified Yessrc Yessrc
Shamir / SLIP-39 backup Not verified Not verified Not verified
Δ differs:Backup format Card/ring backup with optional BIP39 seed; 12/24-word generation is claimed but FAQ contains a conflicting 12-word answersrc 24-word recovery phrase; optional services/cards vary by modelsrc 24-word recovery phrase; optional services/cards vary by modelsrc
Δ differs:Companion app Tangem appsrc Ledger Walletsrc Ledger Walletsrc
Δ differs:Battery No charging required.src Up to 5 hours normal usesrc No batterysrc
Size and weight Not verified 72 x 18.6 x 11.7 mm; 34 gsrc 62.4 x 17.4 x 8.2 mm; 21 gsrc
Δ differs:Made by (country) Switzerland (headquarters)src France (company address)src France (company address)src

Values from each maker's documentation, checked 14 Oct 2026. Each src link opens the page the value came from. 9 of 48 cells are not verified.

The Tangem Wallet is a set of NFC cards with no screen that sign when tapped against a phone and can work without a recovery phrase. The Ledger Nano X and Nano S Plus are small USB-C devices with a screen, backed by a 24-word recovery phrase. The table above sources every value; below are the differences that matter in daily use and recovery.

Tangem or Ledger: which should you pick?

  • Tangem Wallet if you work from a phone with NFC, do not want to guard a written phrase, and accept reviewing transactions in the phone app.
  • Ledger Nano S Plus if you want to confirm each transaction on a separate screen and connect by USB-C to a computer or Android phone, with no battery to maintain.
  • Ledger Nano X if you want the same screen with Bluetooth and a built-in battery.

Does Tangem have a screen like Ledger?

No. Tangem’s CTO writes that its cards work “even though they have no screen,” and that the mobile app handles the critical interactions. You check the amount and address on your phone, then tap the card. Both Ledger models have a 1.1-inch monochrome OLED (128 x 64, non-touch) that shows the transaction on the device itself.

With Tangem, the phone is the only place you can review what you sign, so in our reading its integrity carries more weight. Both Ledger models have a separate screen; for the Nano X, Ledger’s security model says that even if your phone, computer or Bluetooth link were compromised, “The screen will show you the true transaction details.” See cold vs hot wallets for more.

How do Tangem and Ledger backups differ?

Tangem copies one key onto two or three cards during setup. According to Tangem’s homepage, with three cards “If one card is lost, the other two can ensure access”; with two, losing one and forgetting the access code leaves no way to reset or recover. Its buying guide says losing all cards means losing the funds, unless you also created an optional BIP39 seed phrase. Tangem can import a passphrase wallet but, per its passphrase guide, not create one.

Ledger uses a 24-word BIP39 recovery phrase, which can restore your wallet on other compatible wallets. Ledger says all its devices offer the passphrase option. Ledger also sells an optional subscription, Ledger Recover, which encrypts your secret, splits it into three fragments held by Coincover, Ledger and EscrowTech, and requires an identity document. Ledger’s page says the Nano S Plus supports it through the desktop app only. In May 2023, after customer criticism of Recover, Ledger delayed its launch and said it would speed up its open-source work.

Our seed phrase guide explains the trade-off between a written phrase and other backups.

Is Tangem or Ledger more open source?

Neither publishes all of its device firmware. Tangem’s firmware article says the card firmware is closed-source and audited, while the app and SDK are open source. Ledger describes its code as “95% OpenSource and/or available,” which our dataset records as partial.

The bigger split is updates. Tangem’s firmware is written once at manufacture. Ledger ships firmware updates, which is how it fixed a Nano X secure-channel issue in firmware 1.3.0 (2021) and a bug that could brick a Nano X during updates in 2.4.2 (2025). An update channel is something an attacker could target; a device without one cannot be patched.

How do Tangem and Ledger Nano specs differ?

  • Tangem: NFC only, powered by the phone, no battery. Chip certified EAL6+.
  • Nano S Plus: USB-C, no battery, ST33K1M5 secure element.
  • Nano X: USB-C and Bluetooth (BLE 5.2), battery rated for up to 5 hours of normal use, ST33J2M0 secure element.

Ledger lists 500+ coins through its Ledger Wallet app and more through third-party wallets, and supports Bitcoin multisig through its Bitcoin app with coordinator software. Our dataset has no verified asset count or multisig statement for the Tangem Wallet; Tangem’s homepage, checked on 14 October 2026, advertises “14100+ tokens across 90 blockchains.”

How much do Tangem and Ledger cost?

On 14 October 2026 the Tangem Wallet was listed at $54.90 for 2 cards and $69.90 for 3 cards on Tangem’s pricing page. On the same day Ledger’s shop listed the Nano S Plus at $69 and the Nano X at $99.

What security incidents have Tangem and Ledger had?

Tangem: in December 2024 the Tangem app logged private keys for users who activated a seed phrase wallet and contacted support through the app within seven days of activation; Tangem reported no funds lost and fixed the app. In July 2026 Ledger Donjon, Ledger’s own security lab, reset a card’s access code with laser fault injection, which needed physical possession and equipment Donjon puts at around $250,000. Tangem responded on 9 July 2026, stressing the physical access, equipment and expertise the attack needs; it announced no fix. The research comes from a competitor; its method is published for others to check.

Ledger: customer contact and order data were exposed in 2020 and again through Global-e in January 2026, and a compromised Connect Kit library affected third-party apps in December 2023 without extracting seeds from devices. See is Ledger safe? and Ledger vs Trezor.

What we could not verify

  • A distinct coin count (Tangem publishes a token and network count, cited above), multisig support and card dimensions for the Tangem Wallet.
  • SLIP-39 (Shamir) backup support on any of the three devices.
  • Any hardware or firmware remediation for the July 2026 Donjon attack.

Choosing between the two Ledgers? See Ledger Nano X vs Nano S Plus.

Security events on record

17 entries across 3 devices

Every documented event our dataset lists for each model, placed by date. The count includes maker-level events that predate a model, as the scope line says. An empty row means we found no documented event, not that none exists.

  • Tangem Wallet 4 events

    4 events, Dec 2024 to 9 Jul 2026
    1. Tangem card firmware under laboratory laser fault injection. The response does not explicitly limit its scope to second-generation cards.. Tangem responded to Ledger Donjon's research, describing the attack as requiring physical card access, specialized laboratory equipment, expertise, and extensive preparation. Tangem argued that the attack is not scalable and presents very low practical risk to everyday users. These are Tangem's assessments, not independent verification. src
    2. Tangem hardware cards, laboratory physical attack. Ledger Donjon demonstrated laser fault injection that reset the access password without a backup card. Specialized laboratory equipment and physical access were required. Vendor fix not verified. src
    3. companion app. Tangem disclosed private-key logging in the mobile app for seed-phrase activation combined with contacting support within seven days. Tangem reported no funds lost. src
    4. Tangem mobile app generated-seed support logs. A logging bug could include sensitive seed-related information when a user generated a seed and immediately contacted support. A vendor response reported a fix. src
  • Ledger Nano X 8 events

    8 events, 25 Jun 2020 to 5 Jan 2026
    1. Global-e customer-order data. Ledger customer contact and order information was exposed through Global-e. Customers were notified and warned about phishing. src
    2. Nano X MCU firmware-update validation. Missing reset-handler validation could permanently brick a device. Fixed in Nano X 2.4.2 or later; Ledger reports funds were not at risk. src
    3. Ledger Connect Kit and third-party DApps. Malicious npm releases were replaced with a genuine Connect Kit release. This was not hardware seed extraction. src
    4. Ledger Recover controversy. Ledger announced accelerated open sourcing and delayed Recover pending that work; participation was described as optional. src
    5. Physical phishing packages impersonating Ledger. Kraken examined modified Nano X packages sent as supposed replacements. Its report explicitly distinguished the scam from a Ledger firmware flaw. src
    6. Nano secure-channel protocol. Ledger disclosed a length-extension attack with limited impact. Nano X firmware 1.3.0 contained a fix. src
    7. Nano X before delivery or initial setup. Kraken demonstrated supply-chain attacks involving the non-secure processor and host-computer compromise. The article describes initial app installation disabling debugging. src
    8. Ledger customer database. Customer contact and order data were accessed. Ledger patched the breach; a larger dataset was published in December. src
  • Ledger Nano S Plus 5 events

    5 events, 25 Jun 2020 to 5 Jan 2026
    1. Global-e customer-order data, brand-level context. Ledger customer contact and order information was exposed through Global-e. Customers were notified and warned about phishing. src
    2. Ledger Connect Kit and integrating third-party DApps. A compromised npm account distributed malicious Connect Kit releases. Ledger deployed a genuine replacement. This was not a hardware seed-extraction incident. src
    3. Ledger Recover controversy, brand-level context. Following customer criticism, Ledger announced accelerated open sourcing and delayed Recover pending that work. The service was described as optional. src
    4. brand. Ledger disclosed an e-commerce and marketing customer-data breach. This is a brand-level privacy incident. src
    5. Ledger customer database, brand-level context. Customer contact and order data were accessed. Ledger patched the breach; the larger leaked dataset became public in December 2020. src

Parts list and further sheets

3 devices · 3 related comparisons

Item and model Side Status Released Events Sources Datasheet Also compared in
Tangem WalletTangem Tangem In production 2023 4 11 Datasheet: Tangem Wallet Only on this sheet
Ledger Nano XLedger Ledger In production 2019 8 16 Datasheet: Ledger Nano X
Ledger Nano S PlusLedger Ledger In production 2022 5 12 Datasheet: Ledger Nano S Plus

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