The Sinji Panoramic Smart WiFi Camera offers 960p HD real-time streaming and supports up to 128GB of video recording space with a microSD card. Its 165-degree wide angle lens can see everything in a large room, and it will send a notification to your phone every time it picks up new motion. This camera also provides two-way audio communication, just in case you need to scold your dog for digging through the trash, or scare off any uninvited guests.
Multiple Sinji cameras can be viewed from the same app, so you can watch several areas at once for total home surveillance. The Sinji Panoramic Smart WiFi Camera is usually $139.99, but you can get one here for $59.99.