A battery-free NFC signing card for an Android or iPhone app, paired with a separate R3covery backup card. Review the transaction and enter the card PIN on your phone.
Approve transactions with
Controls
No controls on the wallet
Backup
Backup cards
Power
No battery
Is it right for you?
You want a battery-free card for transactions from an NFC phone and are comfortable reviewing the payment and entering the card PIN in the phone app. The offered kit has one S signing card and one R3covery backup card, with different jobs.
You want to verify the recipient address and amount on the wallet’s own screen, or enter recovery words on the hardware. S has no display, buttons or fingerprint control. Its optional written backup is shown in the phone app, and manual restoration enters the words there too. For an existing passphrase backup, S compatibility is not established.
Choose X for a touchscreen that reviews transactions on the hardware and enters recovery words there. It uses Bluetooth with the phone and has a rechargeable battery.
Compare DCENT S and DCENT XChoose Biometric Wallet for hardware review with physical buttons and on-device recovery-word entry, plus documented USB transactions on Windows/macOS or Android.
Compare DCENT S and Biometric WalletPhones and computers
Check the app and connection for each device. Setup and transaction signing are confirmed separately.
NFC
NFC
In the DCENT phone app, select the account, enter the recipient address and amount, and choose a network-fee level. Review the transaction on the phone and tap Send. Enter the S card’s six-digit PIN in the app, then hold S against the phone’s NFC antenna until the task completes. The card signs, and the app broadcasts the transaction.
S has no screen for checking the address, amount or fee independently of the phone. Choose it if this phone-based review suits your routine; choose a model with a display if hardware review is a requirement. The R3covery card is not used for sending and cannot act as a second signer.
Official guidance
S works with Android and iPhone through NFC, so your phone must support NFC card reading. Use the current DCENT Wallet app and select Card Wallet mode. On Android, enable NFC tag read/write; iPhone NFC is enabled by default. The current iPhone app requires iOS 15.5 or later; the current Android app requires Android 9 or later.
Hold the card flat against the phone’s actual NFC antenna and keep it there until the app finishes. A thick case, another physical card in the case or metal and magnetic accessories can interfere. If scanning fails, remove those items and use the manufacturer’s antenna-position instructions for your phone.
The S card has no battery to charge, and DCENT documents no card firmware updates. Keep the phone app current for its supported networks and account management; this is separate from updating firmware on X or Biometric Wallet.
Official guidance
S supports Bitcoin and Ethereum through the DCENT phone app. For another coin or token, select DCENT S in the official asset directory and check the exact network. Add the intended account in the app; account creation normally requires the S PIN and an NFC tap, so keep the signing card available.
Open Receive for that account to see its address or QR code on the phone. S has no device display for a second address check. At your exchange, choose the supported token you intend to receive and a withdrawal network matching the receiving account’s network.
Official guidance
The original S + R3covery kit contains the S signing card and a dedicated R3covery backup card. R3covery stores encrypted recovery information and cannot sign transactions. Keep it separately from S. Set its own card PIN during backup; the S PIN, R3covery PIN and optional app-lock password serve different tasks.
The backup procedure uses the phone: identify the R3covery card, authorize with the S PIN and S tap, then set the R3covery PIN and tap that card to save the backup. Setup allows you to complete this backup later; receiving the kit does not mean either card is already configured.
After initial card backup, the app offers a written 24-word recovery phrase. It shows these words only once on the phone, then asks you to verify their order. Record them offline if you want the alternate recovery route when cards or their PINs are unavailable. This display happens in the app, rather than on S.
Official guidance
To restore from R3covery, you need the saved backup card, its PIN and a new or reset empty S card. In the phone app, read R3covery, set a new S PIN and tap the replacement S to write the wallet onto it. A card already holding another wallet cannot receive this restoration without being reset.
If R3covery or its PIN is unavailable, the documented alternative is your previously recorded S recovery phrase of 24 words. Enter those words in the phone app and import the wallet onto an empty S. BIP39 is the documented recovery-word format, but that does not establish every other wallet’s account or passphrase compatibility. The checked S procedure restores its own 24-word backup; it does not establish 12- or 18-word import.
After either route, add the coin accounts and networks you used before. Recovery restores the signing information, while the app needs those account entries to show the balances. Keep a record of your accounts alongside the information needed for recovery.
Ten consecutive wrong S PIN entries reset the signing card and erase its keys. R3covery has its own failed-PIN reset limit. After an S reset, restoration needs a backup made before that reset.
Official guidance
| Detail | Value |
|---|---|
| Size and weightDimensions | 85.6 × 54 × 0.9 mm |
| Power and chargingBattery | No battery |
| Security and softwareSecurity chip | CC EAL6+ |
| Operating conditionsOperating temperature | -30 °C … 50 °C |
| ProtectionDust and water protection | IP69 |
This page is based on manufacturer documentation.
Documentation checked: ·
How we compareDCENT S
