I put the smartphone on the table and then as the vibration of the alarm went off, the phone moved towards the edge of the table and fell down. The screen is broken. Do I have to pay for the repair or do I have a guarantee? (Have 2 years warranty, the phone is 6 months old)
You have to pay yourself. What can the manufacturer for that you do not put the phone properly on the table?
The warranty does not apply to such self-inflicted damages. You have to pay for it yourself.
If you get the phone, there's certainly no vibro set. Everything that comes from "outside" is YOUR sole responsibility. Therefore nobody will regulate this damage.