Upgrade your front door Upgrade your front door with Video Doorbell 4. Enjoy improved battery life and performance. enhanced dual band Wi Fi. and colour video previews to get the whole picture. A few seconds. All the difference Start recording before you even receive a motion alert with Colour Pre Roll the first feature of its kind for battery powered doorbells. With up to 4 extra seconds of colour video. you'll know what happened before your package was delivered. or other motion was detected. You'll never miss a detail day or night. More ways to answer Answering the dories easier than ever with Quick Replies. Choose from preset response or save time and ask visitors to leave a message with just a few taps. It's like an answering machine for your front door.