To buy: From $60 (was from $135); amazon.com. The outdoor cameras have long-lasting batteries that work for up to two years. They’re wireless and weather-resistant, so you can just mount them, connect them to WiFi, and forget about them until the battery needs changing. The mini indoor camera, however, is a plug-in camera, so you don’t have to worry about battery power at all. You can store the videos in the cloud with the Blink subscription plan that costs $3 a month per camera, or a $10 a month plan for unlimited cameras in a single location. Another reviewer said, “The fact that you can hook these cameras up in just a few minutes with no wires and sync them so easily, it’s just incredible.” They went on to point out that the high-quality image and wide ranging view enables them to see “​​virtually every square inch” of their surroundings.