We tested monitors daily over a period of several months, in three houses: one nearly 100 years old with plaster walls, plus a newer home with standard drywall construction, and a two-level 1960s home with a driveway on another level from the kids’ rooms. We tried the cloud-based monitors with two routers to be sure that any connection issues were with the monitors themselves and not the Internet connection.
If you struggle with technology and don't need or want to see your baby from any other location besides your home, you might want to stick with the dedicated monitors that require little setup and have fairly intuitive user interfaces. This isn't to say that most people can't sort out the Wi-Fi monitors, but it is undeniably less work to just plug the camera into an outlet and go than it is to sign up and download software applications.
Testing battery life for all the monitors was for the parent device only. While some of the dedicated options have a battery in the camera in the event of a power outage, most do not, and they are not intended for use as an all-night option. So while we would support a cordless camera for monitoring baby, due to safety concerns with babies and strangulation hazards, none of the products in our review offer this.
The Nest Cam Indoor Wi-Fi tied for the high score in this review with the iBaby M6S Wi-Fi. This monitor earned the high score for video quality, range, and battery life, with second place scores for ease of use and features. Its impressive performance helped it win the Top Pick award for Long-term Use. The Nest is a cool surveillance camera you can use to watch your baby, but given that it isn't specifically designed with baby in mind, it lacks some of the fun features parents may want like lullabies and nightlight. The Nest Cam offers motion detection, sound activation, 2-way talk to baby, and 8x digital zoom. The Nest Cam camera can not be controlled remotely, but instead relies on a large field of view you can zoom into and then search in a way that looks similar to pan and tilt. The downside to this camera is it does not continue to monitor if you use another app or take a phone call making it hard to use full time if you only have one device, so we recommend using a device other than your phone for consistent baby viewing. The Nest Cam is the most expensive Wi-Fi monitor in the group, but it is still cheaper than 3 of the dedicated monitors, and its long-term use possibilities make it an investment we think parents will use for years to come as a nanny cam, home security feature, or checking in on pets.