When all you want is an ultra-thin, secure card you can slip into your wallet, yet still manage hundreds of crypto assets, stake tokens, and even buy NFTs, the CoolWallet Pro delivers. It's not the most hardcore cold storage device, but for mobile-focused users who prize convenience and military-grade security, it's a compelling blend of style and substance.

In this review, I’ll share my hands-on experience powering it up, staking on the go, and comparing it with more rugged hardware. You'll discover whether the CoolWallet Pro truly earns its place among the best crypto hardware wallets of 2025.

Pros & Cons

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Cool Wallet Pro Tech Specs

• Manufacturer: CoolBitX (Taiwan)
• Type: Multi-chain Bluetooth hardware wallet
• Release Year: 2023
• Price: $149 (~€140)
• Battery: Rechargeable lithium, 4–6 hr charge; ~2 weeks regular use
• Connectivity: Bluetooth; charging dock via USB-C
• Display: Monochrome e-ink (2FA confirmations)
• Security: CC EAL 6+ secure element
• App Support: iOS & Android
• Chains Supported: 35+ (BTC, ETH, BNB, SOL, XRP, AVAX, DOT, ADA…)
• Token Support: 12,000+ custom tokens (ERC20, BEP20…)
• Features: Staking, NFT trading via OpenSea/Rarible, WalletConnect, DeFi, encrypted Bluetooth

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How I Used the CoolWallet Pro

My experience with the CoolWallet Pro began with a full charge, which took around 5 hours using the included USB charging base. The device is rechargeable, and while its standby time claims to reach 2–3 months, I followed the manufacturer’s advice and set a reminder to charge it monthly to preserve long-term battery performance.

Once powered up, I proceeded to update the firmware via the CoolBitX mobile app, which connected seamlessly over Bluetooth. The process was relatively smooth and took about 10–15 minutes, with some loading screens during the install and verification stages.

Next came wallet setup. Unlike most wallets using BIP-39 mnemonic word phrases, the CoolWallet Pro uses BIP-32 number-based seed generation. During backup, you're instructed to note down a string of numbers, and for verification, you must input the total sum of those digits; an unusual system, but it worked as described. I stored the numbers securely offline and moved on.

For my first deposit, I generated a receiving address in the app and confirmed it on the CoolWallet Pro’s screen. The small display split the address across several screens, but the process was straightforward. Once the Bitcoin transaction was confirmed on-chain, the balance was visible in the mobile app.

I then prepared my first outbound transaction, which required Bluetooth communication with the mobile app. Transaction signing took longer than expected due to multiple confirmation steps and several loading screens, with transaction data again split across several screen flashes on the device. I confirmed the amount and destination address on the card before broadcasting via the app.

Finally, I tested the built-in swapping feature integrated through third-party partners in the app interface. I swapped a small amount of Bitcoin to USDT (on Tron) to evaluate the function. This required signing permissions within the app and confirming the swap on the CoolWallet screen. The transaction was executed successfully, although again, not without some wait time during intermediary steps like rate fetching and blockchain confirmation.

By the end of the session, I had received, stored, sent, and swapped crypto using the CoolWallet Pro and its mobile interface.

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Rating (Overall: 3.7/5)

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CoolWallet Pro: Not the Answer to On-The-Go Crypto Safety?

After several days of hands-on testing, the CoolWallet Pro left me with mixed feelings. The concept is undeniably appealing—a credit card-sized hardware wallet that fits discreetly in your real wallet, pairs seamlessly with your phone, and supports a wide range of assets. On paper, it feels like the future.

But in practice, the experience was noticeably slow. Whether I was receiving, sending, or simply navigating menus, the app and device frequently made me wait behind loading screens and laggy confirmations. I can’t say for sure whether that sluggishness stems from hardware limitations or from software inefficiencies, but the end result is the same: using it felt more tedious than it should’ve been.

That said, maybe I was expecting too much. It’s probably naïve to expect a paper-thin device, literally the size of a debit card, to perform with the speed and responsiveness of a full-size air-gapped wallet like the Keystone 3 Pro or Ellipal Titan 2, which are essentially mini smartphones in comparison.

Still, with a price tag of around $150, the CoolWallet Pro finds itself in an awkward position. At that price point, you’re within striking distance of more secure, faster, and more robust hardware wallets that offer a smoother user experience, true air-gapped security, and fewer performance compromises.

I genuinely wanted to love this device—and in some ways, I still admire what it's trying to be. The CoolWallet Pro could be a game-changer with tighter software optimization or a more powerful chip. And if CoolBitX ever releases a next-gen version that builds on this foundation, I’ll be first in line to try it.

Because let’s be honest—a credit card-sized hardware wallet is something I do want in my arsenal. If it’s something you’re also looking for, I recommend checking out my article on the Best Credit Card-Sized Hardware Wallets in 2025. One of them might just check the boxes; this one came close to ticking.

Thinking about making the Coolwallet Pro part of your crypto vault? Before you make that decision, take a moment to compare it with other top-tier models I reviewed in these articles: 

• Best Bitcoin-Only Hardware Wallets of 2025 – For maximalists who value simplicity and sovereignty.
• Best Metal Seed Phrase Backups in 2025 – The only way to protect your seed words from fire, water, and time.
• Top 20 Hardware Wallets for Crypto Cold Storage – A complete guide to the most secure and trusted devices available today.
• Best Biometric Hardware Wallets in 2025 – Because privacy and convenience don’t have to be opposites.
• Best Credit Card-Sized Hardware Wallets in 2025 – Perfect for semi-cold storage and covert carry.
• Top 6 Hardware Wallets for NFTs in 2025 – Yes, even your digital collectibles deserve cold storage.

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FAQ

• What is the CoolWallet Pro?

The CoolWallet Pro is a Bluetooth-enabled, credit card-sized hardware wallet designed to let you manage and store your crypto securely on the go. Built by CoolBitX, it supports over 35 blockchains and 12,000 tokens—including NFTs, staking, and DeFi integration. It connects to your phone via encrypted Bluetooth and is rechargeable with up to 2–3 months of standby time per charge. Its slim form factor makes it one of the most portable wallets on the market.

• Does the CoolWallet Pro support Krypto Pepe, Chainlink, or other new crypto projects?

Yes, CoolWallet Pro supports a vast array of tokens across multiple chains, including popular assets like Krypto Pepe, Chainlink, and new meme coins released on Ethereum or BSC. It’s compatible with new crypto projects and tokens, as long as they conform to supported standards like ERC-20, ERC-721, BEP-20, and others. That said, extremely new tokens or niche ecosystems may not be supported immediately upon listing.

• Can I store crypto tokens from Polygon, AVAX, Hedera, or other altcoin ecosystems on CoolWallet Pro?

Yes. CoolWallet Pro supports tokens from a broad selection of networks, including Polygon crypto (MATIC and ERC-20 tokens on Polygon), AVAX coins on Avalanche C-Chain, Ethereum, Binance Smart Chain, Solana, Tron, TON (Jettons), Sui, and more.

Its wide-ranging compatibility makes it ideal for altcoin collectors or DeFi users who want to manage multiple networks in one wallet.

• Does the CoolWallet Pro support the newest meme coins today or trending AI crypto tokens?

CoolWallet Pro supports many of the newest meme coins today, provided they are deployed on compatible blockchains like Ethereum or BSC. As for AI crypto tokens, coins like Fetch.ai, Ocean Protocol, or Render (RNDR) are supported if they use ERC-20 standards. You’ll still want to double-check that any niche token is supported by the CoolWallet App before transferring funds.

• Can I store new ICO tokens on the CoolWallet Pro?

Yes, as long as the new ICO tokens follow supported token standards (e.g., ERC-20, BEP-20), you can store them securely on CoolWallet Pro. However, some early-stage projects might require manual token addition through the CoolWallet app’s custom token interface. Always confirm smart contract addresses before sending ICO tokens.

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Testimonials

Special thanks to Crypto Guide and Cyber Scrilla for their in-depth tutorials. Their content was invaluable in helping me confidently set up and use my Coolwallet Pro the right way:

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Cyber Scrilla: https://www.youtube.com/watch?v=EZAGpGuFJsw

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