With basic Near Field Communication (NFC) knowledge, there is no reason to have to read through a manual prior to using a NFC watch. NFC is intuitive to use and simplifies greatly our daily life !
The NFC watch holds a NXP Mifare Ultralight Chip inside. The Mifare Ultralight IC has 512 bits of memory (i.e. 64bytes) is read&write, without cryptographic security, Type 2 Tag based on ISO/IEC 14443A that allows you to store contacts, URLs, SMS as well as text messages and generic URIs, etc. readable by any NFC equipped smartphone. Once data has been stored in the NFC chip, the application allows to read and view the programmed data including options to launch any mobile application available in the market.
Mifare Ultralight Chip in short: — 64 bytes of memory — can be read&write, but also write protected (read only) ! — follows NFC Tag Type 2, so all NFC devices (smartphones, tablets, etc.) will be able to read this chip.
For more info read the chip manufacturer‘s datasheet: http://www.nxp.com/documents/data_sheet/MF0ICU1.pdf
IMPORTANT NOTE: Be aware that the NFC-Chip inside your watch has a write-protection function. It means that once you write-protect the Chip, it can’t be edited to point to do something else! It’s made read-only at the hardware level. So please avoid this function and refer to our Returns&Warranty Policy for related details. There will be NO PRODUCT RETURN ACCEPTED!