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Whats about the new Smart Tags NT3? I´m using the existend 6 colors with my sony devices, can i use all 4 of them also?
Some of the colors already exists in my collection 
The new SmartTags differs a bit in design and whats new is that you can actually assigned the tags themselves with what they should communicate with any NFC device. Not just saying "Hey, I'm red" then let the phone decide what to do with the red tags.