Compare

Prokey Optimum or Tangem Ring?

The exact editions, side by side: how you’ll use them and the limits to know.

Prokey Optimum

One edition

Change wallet: Prokey Optimum

Tangem Ring

One edition

Change wallet: Tangem Ring
Add a wallet

Filters

  • Your device: Android

Prokey Optimum: This model does not match the current filters.

In short

Transaction approval (Android) is confirmed only for Tangem Ring.

Android

Your device
Approve transactions
Prokey Optimum:
Support for signing is unconfirmed
Tangem Ring:
NFCTangem app · Bitcoin / Ethereum
Set up the wallet
Prokey Optimum:
Support for wallet setup is unconfirmed
Tangem Ring:
NFCTangem app · Bitcoin / Ethereum

Approve transactions

Computer
Prokey Optimum:
USBProkey Wallet · Bitcoin / Ethereum
Tangem Ring:
Support for signing is unconfirmed
iPhone
Prokey Optimum:
Support for signing is unconfirmed
Tangem Ring:
NFCTangem app · Bitcoin / Ethereum

Where they differ

Wallet recovery
Prokey Optimum:Recovery phrase
Tangem Ring:Backup cards
Operating power
Prokey Optimum:USB power
Tangem Ring:Powered by NFC

What they have in common

Cryptocurrencies
Multiple cryptocurrencies
Both
Battery
No battery
Both

Not fully confirmed

Controls / Display
Prokey Optimum:Physical buttonsDisplay · Touchscreen: Not confirmed
Tangem Ring:No controls on the walletDisplay: No device display

Before you choose

Consider
Prokey OptimumInitial setup and firmware updates use Chrome on a computer. Recovery uses your 24 words on Prokey; a passphrase-protected wallet also needs its exact passphrase.
Tangem RingTake the ring off to scan. You review payments on the phone; Ring has no independent screen. Choose seedless or phrase backup during setup.

Apps and requirements

Show detailsHide details
Connectivity
Prokey Optimum

Computer

Prokey WalletUSBBitcoin / EthereumWindows · macOS · Linux
Connection requirements

Use Google Chrome and allow USB access to Prokey Wallet. Install the device firmware there before first use. Linux may also need Prokey’s USB permissions rule. Check the payment on Prokey and hold OK to approve.

Tangem Ring

Android · iPhone

Tangem appNFCBitcoin / Ethereum
Connection requirements

You need a compatible NFC phone and supported versions of its operating system and wallet app. You check the transaction details on the phone.

Hardware detailsDifferent: 2 · Same: 0 · Not fully recorded: 5Show details (7)Hide details
Prokey OptimumTangem Ring

Display

Display type
Prokey Optimum:OLED
Tangem Ring:No built-in display

Size and weight

Dimensions
Prokey Optimum:50 × 41 × 9.4 mmDimensions as listed by the manufacturer
Tangem Ring:Not recorded
Device weight
Prokey Optimum:16.7 g
Tangem Ring:Not confirmed

Materials and finish

Materials
Prokey Optimum:Body: ABS
Tangem Ring:Casing: Zirconia ceramic

Device connections

USB port
Prokey Optimum:USB-C
Tangem Ring:Not recorded

Security and software

Security chip
Prokey Optimum:Not recorded
Tangem Ring:CC EAL6+

Protection

Dust and water protection
Prokey Optimum:Not recorded
Tangem Ring:IP69K

Official stores

Next steps
Prokey OptimumOne edition

Documentation checked Oct 19, 2026

Tangem RingOne edition

Documentation checked Oct 6, 2026

Replace Prokey Optimum

Our picks for Android

Current wallets

Discontinued