1. Amazon Prime Day offers up to 60% off on Blink Outdoor 4 security cameras and Ring Video Doorbell. 2. The Blink Outdoor 4 bundle includes five cameras with 1080p live view, infrared night vision, and two-way audio, powered by AA lithium batteries lasting up to two years. 3. The Ring Video Doorbell features 1080p HD video, improved motion detection, and can be controlled via Alexa-enabled devices.