Start by deciding whether you want an audio-only monitor or one that lets you see as well as hear your baby. Some parents are reassured by hearing and seeing every whimper and movement. Others find such close surveillance to be nerve-racking. Having a monitor should make life easier, not create a constant source of worry. You might find that you don't really need a monitor at all, especially if your home is small.
If you’re absolutely sure you want a Wi-Fi–enabled baby monitor, we found the iBaby M6S to be the best option of the three we tested (the others were the Arlo Baby by Netgear and the Evoz Glow Baby Monitor). The iBaby offers the benefits common to most Wi-Fi monitors and is slightly easier to set up than its competitors. But like its competitors, it shares the significant drawbacks, noted above, that we believe make RF monitors a better choice overall.
It really depends on what you feel most comfortable with. There are audio monitors that allow you to listen to any noise coming from the nursery, vital monitors that track sleep and breathing and video monitors that add sight to sound. Babylist parents overwhelmingly choose video monitors. The security of seeing what your child is up to—like if they’ve gotten tangled in their swaddle, pulled their diaper off or climbed out of the crib—can be worth the extra cost of a video monitor.