Poor quality and durability plague many baby monitors. Scores of reviewers on Amazon and other sites report that the Hello Baby HB32; Motorola MPB854Connect, MBP36XL, MBP33XL, MBP41, and MBP43; Infant Optics DXR-5; Summer Infant Dual View and Sure Sight 2.0; Levana Jena, Keera, Ayden, Astra, and Lila; Angelcare AC420; Philips Avent SCD570 and SCD630/SCD637; and VTech VM342-2 and VM343 don’t deliver on promised functionality and start to fail in some critical capacity within a year—often in much less time.
The Babysense 7 movement product is a sensor pad mattress product that isn't portable but seems to have fewer false alarms than wearable products. The BabySense 7 is easy to use and doesn't require much setup or preparation outside of placing the sensor and control unit. This unit even works well after your baby learns to roll over, unlike the wearable options that become less reliable as your little one's age.
You might prefer one that has lights as well as sound. All the audio monitors we rated had this feature. The Philips Avent DECT SCD510, which sells for about $120, has a series of small LED lights on the parent monitor. The louder the sound in your baby's room, the more lights go on, so you'll notice his crying even with the unit set on mute. Audio monitors are generally less expensive than audio/video models.
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.