Swiss crypto hardware firm Tangem has secured its third U.S. patent in 2025 for a blockchain-enabled smart ring, marking its official entry into the $1.3 billion wearable technology sector. The zirconia ceramic device stores private keys and signs transactions through near-field communication (NFC), combining jewelry aesthetics with bank-grade security using a CC EAL6+ certified chip. This move positions Tangem against established smart ring manufacturers while introducing self-custody capabilities to mainstream wearable users.
The newly patented design enables contactless cryptocurrency payments and transaction signing through a simple hand gesture. Unlike traditional hardware wallets, the ring requires no batteries or charging – its passive NFC interface draws power from smartphones during interactions. Tangem CEO Andrey Kurennykh confirms the company is pursuing embedded finance partnerships to integrate the technology into third-party wearables.
Security remains paramount, with the patent specifically covering the ring’s air-gapped cryptographic signing process that never exposes private keys. Independent testing verified the device’s resistance to side-channel attacks and its ability to maintain operational integrity at depths up to 50 meters underwater. Early prototypes survived 2,000+ transaction simulations without performance degradation.
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Technical Specifications and Market Positioning
Tangem’s wearable solution boasts several industry-first features:
- Hypoallergenic zirconia ceramic housing (9 Mohs hardness)
- Military-grade encryption compliant with FIPS 140-2 Level 3
- Support for 6000+ cryptocurrencies across 50+ blockchains
- Three-factor authentication via biometric, pattern, and PIN verification
The company’s existing hardware wallet ecosystem, including their popular card-shaped devices, will integrate with the ring through a unified mobile app. This creates a multi-device security matrix where users can distribute key fragments across different form factors.
2025 Roadmap and Feature Pipeline
Tangem’s recently published Q1 2025 roadmap reveals ambitious plans for the ring platform:
- Q3 2025: NFT management support for EVM chains, Solana, and TON
- Q4 2025: DeFi position tracking with automated yield optimization
- Q1 2026: Social recovery protocols using Shamir’s Secret Sharing
The development team is prioritizing WalletConnect integration with enhanced security features, including real-time dApp reputation scoring and transaction simulation previews. These upgrades aim to address growing concerns about malicious smart contracts and approval phishing attacks.
Industry Impact and Adoption Challenges
Analysts predict the crypto wearable market could capture 15-20% of the hardware wallet sector within three years. However, Tangem faces significant challenges:
- Consumer education about self-custody concepts
- Competition from established jewelry brands entering crypto
- Regulatory uncertainty around wearable payment devices
The company’s patent portfolio now includes three critical innovations in 2025 alone – a private key backup system, hybrid payment card architecture, and now the smart ring’s secure element configuration. This IP mozaic could prove valuable as traditional finance institutions explore wearable integration.
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Market Impact: Tangem’s entry validates wearable crypto storage as a viable market segment, potentially driving increased VC investment in biometric security solutions. The ring’s patent-protected technology could accelerate adoption among luxury watchmakers and fashion tech companies seeking blockchain integrations.
- Hardware Wallet
- A physical device storing cryptocurrency private keys offline to prevent remote hacking attempts.
- Secure Element
- Tamper-resistant microprocessor meeting stringent security certifications for cryptographic operations.
- Self-Custody
- Maintaining direct control over crypto assets without third-party intermediaries like exchanges.
- Cryptographic Signing
- Mathematical process proving ownership of blockchain assets without revealing sensitive information.
- DeFi
- Decentralized financial applications operating without traditional intermediaries using smart contracts.
- NFT
- Unique blockchain tokens representing ownership of digital or physical assets.
