According to the United States Trademark and Patent Office (USPTO) recently published list, Apple obtained an Apple Watch-related patents, that can be embedded in the strap NFC, RFID and Bluetooth and other components, so as to achieve certain specific functions.
In Apple’s vision, the future Apple Watch could “recognize” the type, model, color, size, or other characteristics of a watch band, and the dial would automatically adjust the dial, switch modes, and other operations depending on the band.
Apple also plans to embed NFC, RFID, and other sensors into Apple Watch bands to detect light, pressure, touch, movement, temperature, or other “health indicators”. In addition to monitoring heart rate, the future Apple Watch can also detect whether the wearer has a fever and other conditions.
