For how long the battery can last?
it is about 3 hours.
Can you still view live video from your phone without an SD card?
yes, you can.
Can i use software like blueiris with the camera, or do i have to use included software? if so, what is it?
this camera's app is BVCAM，it support ios system and Android system.you can go to the google play and app store to download it.
Does it need to be connected to the wifi to work ?
yes, you need to connect the camera's own wifi.
Is this camera waterproof?
this camera is not waterproof.
IS there any loop recording functionality?
yes, it have.