Please check with your carrier/provider before purchasing this item.
Q & A:
Q1.Is it waterproof ?
A1.Zeblaze THOR 4 Dual watch phone supports to life waterproof.You can wear it when washing hand,but don't wear it to swim or take a bath.
Q2.Can I change the strap of the smart watch?
A2.No. It is non-removable.The band has an antenna.
Q3.Can I make a phone(video) call with my friend?
A3.Yes.It has two 5.0+5.0MP camera and one is the front-facing camera.And you can make a phone call with SIM Card.