Samsung is Scamsung. I pre-ordered an S21Ultra in its online store. It breaks down within 10 days. It basically disconnects SIM card and drain battery 50% per hour by itself. I brought to the store, the staff says exchange and refund takes 3 weeks. It is a brand new phone and it only lasted 10 days. Any other brand gives you exchange on the spot!!! now it is still being repaired and i am waiting for 22 days now. I called Samsung E-commerce team and they said the warehouse still has not received the faulty phone after 22 days. i am speechless. Never buy Samsung.