Compare hardware wallets
      
 CoolWallet S vs. Ngrave Zero
 
      Which one is better in 2025? In-depth comparison of CoolWallet S and Ngrave Zero
    
    |  |   |   | 
|---|
 |  |  |  | 
|---|
        | Wireless |  | — | 
 | Seed Phrase | BIP39 | BIP39 | 
 | Release Year | — | 2020 | 
 | Features | — |  | 
 | Works With |  | — | 
 | Compatible With |  | — | 
 | Coins |  |  | 
    | Battery Type | Lithium-ion | — | 
 | Battery Capacity | 15mAh | — | 
 | Camera | — |  | 
 | Authentication | — |  | 
  | Certifications |  |  | 
  | iOS | CoolBitX Crypto | — | 
 | Android | CoolBitX Crypto | — | 
   | Size | 85.6mm x 53.98mm x 0.8mm | — |