Do accept my apology that my review below will be predominantly a comparison with my various Arlo cameras I have. The Ring camera installed quickly, works well, very minimal lag time. I currently also have in the same house some Arlo Q plus, Arlo Q and Arlo Pro cameras. The video lag time of Arlo cameras is way too long for practical use. The Ring cam surprised me with their low lag time. In live view of Ring cams, as soon as movement or sounds made, I can see on my Iphone almost instantly, I would say the delay would only be sub-second. This is why I can even use Ring camera reliably as a baby monitor. Due to this low lagging time, the 2 way audio function of this Ring cam is very usable too. I can talk to my kids at home via 4G just like a home intercom. Very quick, responsive and comfortable. The Arlo cameras 2-way audio function is like almost non usable because once I talk, my kids take forever to hear me and when they reply, I have to wait for at least several seconds (if lucky) to be able to hear their response. After a while, I just accept that Arlo 2-way talk function is more like marketing tool because the function is there but I am unable to use it at all. Arlo free basic plan covers 5 cameras only. Next best domestic plan for me covers 10 cameras. I stop buying more than 10 Arlo cams due to this limit. Ring on the other hand offer 150$/year for unlimited number of cameras at my house, this will certainly a plus for me because I can just purchase more than 10 cameras and they will all be covered in the plan. The little downside of this Ring camera is the lack of picture sharpness. The day time picture sharpness is similar to Arlo Q however at night Ring picture sharpness is much less then Arlo Q. I am happy to trade off this lack of Ring night vision sharpness for it's good and reliable functionality. Others may disagree.