What are the pros of CoolWallet?

Portable cold-storage form factor. Keys never leave the secure element. Broad multi-chain and token support. Staking and swaps from within the app.

What are the cons of CoolWallet?

Multi-chain device; Solana is one of many chains. Relies on Bluetooth and mobile-app security. User is fully responsible for recovery-phrase safety.

constant·k — Private Solana RPC Services

Security & Audit · Solana

CoolWallet

Credit card-sized hardware wallet with Solana staking support

Security & Audit Wallets

Healthy

Rating

5.0★

1 review

Health

93/100

Checked 13d ago

Pricing

Paid

See pricing section

Updated

Oct 2026

Security & Audit

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What CoolWallet actually does.

CoolWallet is a credit-card-sized hardware wallet for self-custody of crypto, designed to pair with a mobile app over Bluetooth. Its distinguishing form factor is a thin, portable card rather than a USB-style device. Private keys are generated and stored inside the device's secure element and never leave it; cryptographic signing happens on-device, with only encrypted data sent over end-to-end encrypted Bluetooth to the app. The wallet supports many chains including Bitcoin, Ethereum, EVM networks, and Solana, and the companion app adds staking, swapping, a Web3 browser, and on-device SOL/SPL staking. CoolWallet targets self-custody users who want cold-storage security in a portable, mobile-first package, including those staking Solana directly from cold storage. It is a multi-chain wallet, so Solana is one of many supported networks rather than a primary focus. Bluetooth-based wallets rely on app and pairing security, and as with any hardware wallet, users are fully responsible for safeguarding their recovery phrase.

Live health

Uptime, SSL, response time.

Health & Activity

Uptime 30d

97.9%

Website

Online

SSL

Valid

Social Activity

Active(1d ago)

Last checked: 13d ago

Latest from @coolwallet

1d ago

📊 This week’s most traded coins on the CoolWallet App! Which one do you trade the most? Or did you buy them all? 😆 #CoolWallet #CoolWalletApp #Crypto #CryptoTrading #WeeklyCrypto #Bitcoin #Ethereum #Solana #USDT #USDC https://t.co/GXHpNPD5AI

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Key features

What's in the box.

Credit-card-sized hardware wallet
Secure-element key storage
Encrypted Bluetooth mobile pairing
Multi-chain support including Solana
On-device SOL/SPL staking

Verdict

The honest tradeoffs.

Pros

Portable cold-storage form factor
Keys never leave the secure element
Broad multi-chain and token support
Staking and swaps from within the app

Cons

Multi-chain device; Solana is one of many chains
Relies on Bluetooth and mobile-app security
User is fully responsible for recovery-phrase safety

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Reviews

What users say about CoolWallet.

Reviews (1)

CoolWallet feels rock-solid with the secure element chip and full cold storage keeping my keys completely offline. I also trust it more after seeing their public audits and bug bounty program — it’s clear they take transparency seriously.

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Links

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