Singapore, one of my favorite places !. This is a user to user forum with a few people that work for WYZE that visit from time to time. If you have power available I think you would be better off purchasing a V3 camera depending on your needs. I have 4 of the Version One Battery powered outdoor cams that I purchased in 2020 and they are suitable for my use but they are not for everyone due to limitations on recording. I know there is another WYZE user here that is in Singapore and they had an issue of connecting to their cam via cellular data, it worked on their Wi-Fi network but they had issues connecting via a remote location on cell. I will see if I can find to old post and if it got resolved. I don’t know about warranty, you could call WYZE Support at 206-339-9646 or 1-844-999-3226. I think the hours are 4AM-8PM M-F US Pacific time and 8AM-4PM Saturday US Pacific time.
There are users here from many different countries so I do not think the cams are region locked.
*****EDIT Here is the old post, The user in Singapore got his issue resolved.