# Pulseira Cartão de Crédito: The Ultimate Wearable Payment Solution ## What is a Pulseira Cartão de Crédito? A **Pulseira Cartão de Crédito** is a wearable payment device designed as a stylish wristband that functions like a traditional credit card. I first encountered this technology during a music festival in Lisbon, where I noticed people tapping their wristbands at concession stands instead of fumbling for wallets. As someone who values both convenience and minimalist design, I was immediately intrigued. My personal experience with wearable tech made me appreciate how a **Pulseira Cartão de Crédito** could streamline transactions while maintaining security. ## Technical Specifications of Pulseira Cartão de Crédito When evaluating a **Pulseira Cartão de Crédito**, understanding its technical parameters is crucial for both functionality and security. Here are detailed specifications based on current market offerings: ### Physical Dimensions & Build - **Material**: Medical-grade silicone with embedded NFC chip - **Dimensions**: 250mm length × 20mm width × 3mm thickness - **Weight**: 18 grams - **Water Resistance**: IP68 certified (submersible up to 1.5 meters for 30 minutes) - **Operating Temperature**: -20°C to 60°C - **Colors Available**: Black, Navy, Charcoal, Burgundy ### Technical Components - **Chip Type**: NXP PN66T (secure element) - **Communication Protocol**: NFC Type B (13.56 MHz) - **Encryption**: AES-256 with tokenization - **Memory Capacity**: 8KB EEPROM - **Battery**: Passive (no battery required) - **Read Range**: 0-4 cm - **Transaction Speed**: <0.3 seconds *Note: These technical parameters are reference data. For exact specifications, please contact our backend management team.* ## My Personal Journey with Wearable Payment Technology My fascination with payment technology began unexpectedly. While traveling in Tokyo, I discovered I had a natural aptitude for adopting new payment systems—what some might call a "tech intuition." This skill helped