TAP. AUTHENTICATE. SIGN.
The WATS NFC Metal Card is a military-grade physical NFC card that authenticates access to your non-custodial WATS Wallet and enables NFC tap-to-sign with the WATS mobile app. You tap it to an NFC-enabled phone to confirm identity and approve transactions. Your keys stay in the WATS apps — the card is a companion device, not key storage.
Specifications
- Material
- Brushed stainless steel (~22 g) or polycarbonate (~5 g)
- Water resistance
- IP68 — submersible to 1.5 m for 30 minutes
- Durability
- MIL-STD-810, -40°C to +85°C, EMI/radiation shielded
- NFC chip
- Embedded NTAG 216, NFC Forum Type 4
- Frequency
- 13.56 MHz
- Encryption
- AES-128
- Standard
- ISO/IEC 14443 compliant
- Dimensions
- CR-80 — 85.6 × 53.98 × 0.84 mm
- Custom print
- Optional UV print, 600 DPI, CMYK
How it works
- 1
Tap to authenticate
Hold the card to an NFC-enabled smartphone to verify your identity and unlock access to your WATS Wallet accounts. The NTAG 216 chip with AES-128 encryption handles the contactless handshake.
- 2
NFC tap-to-sign
Pair the card with the WATS mobile app to approve and sign transactions with a physical tap, adding a hardware confirmation step on top of biometric unlock.
- 3
Order and personalize
Buy the card at store.watswallet.com, choose brushed stainless steel or polycarbonate, and add an optional UV custom print of your logo, artwork, or photo.
Frequently asked questions
What is the WATS NFC Metal Card?
It is a military-grade physical NFC card that authenticates access to your non-custodial WATS Wallet and enables NFC tap-to-sign with the WATS mobile app. It carries an embedded NTAG 216 chip with AES-128 encryption and complies with ISO/IEC 14443.
Does the WATS NFC Card store my crypto or private keys?
No. The card authenticates access and enables tap-to-sign; it is not key storage and not a standalone cold wallet. Your keys stay in the non-custodial WATS apps, so you alone control your funds.
How durable and waterproof is the card?
It is rated IP68 (submersible to 1.5 m for 30 minutes) and built to MIL-STD-810 durability standards, operating from -40°C to +85°C with EMI/radiation shielding. Stainless steel weighs about 22 g; polycarbonate about 5 g.
How much does the WATS NFC Card cost and can I customize it?
Current pricing and material options are listed at store.watswallet.com. You can add an optional UV custom print (600 DPI, CMYK) of your own logo, artwork, or photo when you order.
Last updated: June 16, 2026
