Tangem Wallet 2‑Pack Offers Offline Crypto Storage for About $43

Tangem’s latest offering bundles two NFC‑enabled hardware wallets for ₹5,799, roughly $43, and the company recently secured a U.S. patent for its seed‑less private‑key backup technology that lets users transfer keys between cards without exposing a seed phrase [1][2].

Key takeaways

• Tangem’s patented system creates encrypted backups on additional cards, eliminating traditional seed phrases [1].
• The backup process uses Diffie‑Hellman key exchange with mutual authentication to move private keys securely between two or three cards [1].
• Each Tangem card generates a random private key that never leaves the device, and the company claims the firmware has been independently audited by Kudelski Security [2].
• The 2‑pack is priced at ₹5,799 in India, inclusive of taxes and free shipping, with a 25‑year warranty from the reseller [2].
• Tangem promotes the wallet as “tamper‑proof” and suitable for storing, buying, earning, transferring, and swapping over 6,000 cryptocurrencies [2].

Patent‑Backed Seed‑Less Backup Technology

The United States Patent and Trademark Office granted Tangom a patent covering its private‑key backup method, which removes the need for a written seed phrase—a common vulnerability in self‑custody wallets [1]. According to Andrey Lazutkin, Tangem’s CTO, the system can involve two or three cards that establish a secure connection using the Diffie‑Hellman algorithm with mutual authentication. Once the connection is verified, the private key is transferred from the original card to the backup card, and optionally to a third card, all under end‑to‑end encryption [1]. This design aims to simplify recovery while preventing unauthorized access, even if a smartphone is used as an intermediary during the transfer.

Product Details and Market Position

The Tangem Wallet sold as a 2‑pack is a card‑shaped cold wallet that stores private keys on a secure chip. Tangem states that the chip generates a random private key that never leaves the device, making it impossible for the company or any third party to steal the key [2]. The wallet supports more than 6,000 coins and tokens, offers NFC connectivity for instant transactions, and integrates with the 1inch decentralized exchange for DeFi activities [2]. An independent firmware audit was performed by the Swiss security firm Kudelski Security, and the product comes with a 25‑year warranty when purchased through the Indian reseller Etherbit.in [2]. The listed price of ₹5,799 includes all taxes and free express shipping, with no hidden fees reported by the retailer [2].

Why it matters

Tangem’s patented seed‑less backup could set a new standard for hardware wallet security by removing the reliance on seed phrases, which are prone to loss or theft. Coupled with a low‑cost, widely available 2‑pack, the technology makes secure self‑custody more accessible to everyday users, especially in markets like India where the product is already stocked and shipped locally. If the patented method proves robust in practice, it may influence other wallet manufacturers to adopt similar key‑transfer mechanisms, potentially reshaping the landscape of crypto self‑custody security.