DescriptionLoytech has Ultralight, Ultralight C, Standard (Classic) 1K, Desfire 4k and the new NTAG203 chips. The table below should give you some idea of which is best for your needs.

NFC IC	Ultralight	Ultralight C	Standard 1K(nxp s50)	China mifire 1K(FM110808)	NTAG203
Memory Size 1	64 bytes	192 bytes	1024 bytes	1024 bytes	168 bytes
User Memory 2	46 bytes	137 bytes	716 bytes	716 bytes	137 bytes
URL Length 3	41 chars	132 chars	256 chars	256 chars	132 chars
Text Length 4	39 chars	130 chars	709 chars	709 chars	130 chars
Mobile Comp. 5	Yes	Yes	No	No	Yes
Best Use	Cost effective, short URL, smart poster and generalNFC use.	For applications required encryption tech only.	Recommended for specific high capacity usage and vCards only.	Recommended for specific high capacity usage and vCards only.	Latest chip, best performance. Great for everything from marketing to task launcher apps.

Applications:1. Bluetooth pairing - tap your phone and headset together to link them together instantly.2.Poster advertising - tap your phone on an advert's 'hot spot' to get a phone number or go straight to a web site.3. Contact sharing - let someone tap your phone, or your keyring, to give them your contact details.4. Payment - use your phone to make payments in shops, restaurants and even other NFC phone owners.* Effective distance depends on antenna, tag and environment.