The smart tags work well, especially with the new application of sony. Simply place it behind the phone (on the NFC area) for all applications and required event appears: cut wifi and data streams at night, then start the clock, walkman, etc. We can perform 5-6 tasks simultaneously without problems. Small problem related to technology, it is necessary that the phone is on and running for it to work, as soon as the screen is idle it no longer works.
