Overview
The CoolWallet S is a Bluetooth-enabled, water-resistant hardware wallet designed for secure cold storage of cryptocurrencies like Bitcoin, Ethereum, and DeFi/NFT assets. With EAL5+ certification, it combines portability and advanced security features.
Key Features
✅ Bluetooth Connectivity – Manage crypto on-the-go via smartphone.
✅ Water-Resistant Design – Durable for everyday use.
✅ EAL5+ Certified Security – Military-grade protection for private keys.
✅ Slim Credit-Card Size – Fits in your physical wallet.
Customer Feedback
👍 Pros
Easy Setup
- 12/14 customers praised its intuitive setup process.
- "Super easy to set up—my crypto feels safe!" Read more
Portability
- 6/6 highlighted its compact size.
- "I carry it everywhere—no laptop needed!"
Security
- 4/4 appreciated offline storage.
- "Peace of mind knowing my assets are off exchanges."
Design
- Sleek, credit-card form factor with a built-in screen.
👎 Cons
App Reliability
- 5/5 reported crashes or device failures within a year.
Bluetooth Issues
- 3/3 experienced connection drops.
- "Bluetooth stopped working—rendered the card useless."
Nonstandard Recovery Path
- Some users struggled to recover BTC on other wallets.
Performance Highlights
| Metric | Rating (Out of 5) |
|----------------------|-------------------|
| Ease of Use | ⭐⭐⭐⭐⭐ |
| Durability | ⭐⭐⭐⭐ |
| Connectivity | ⭐⭐ |
FAQ
Q: How long does the battery last?
A: ~1 month per charge with regular use.
Q: Is it compatible with iOS/Android?
A: Yes—supports both platforms.
Q: Can I store NFTs?
A: Yes, via supported DeFi integrations.
Q: What if Bluetooth fails?
A: Contact support for firmware fixes or replacement.
Final Verdict
The CoolWallet S excels in portability and security but falls short in long-term reliability. Ideal for users prioritizing convenience, but consider alternatives if app stability is critical.