BabyGearLab

The Snuza Go is a budget-friendly wearable that clips to the front of your baby's diaper with a flexible sensor that rests on the infant's abdomen. This top-scoring product is easy to use and travels well with no additional components or complicated setups to worry about. This unit has a simple design that requires no special crib modifications or environment alterations, giving parents that straight out-of-the-box satisfaction you can't find in the sensor pad-style monitor. 
The Go doesn't have a parent unit, and the loud nursery alarm can cause unnecessary upset for the baby or potentially go unheard by those outside the nursery. This can be half remedied by combining it with a sound monitor to gain a parent unit to ensure you hear the alarm. Some parents also feel that the battery life is too short, and replacements are challenging to locate. Still, the lower price and portability of the Go can offset this potential problem if you have budget or portability on your brain. Like most other movement products, the Go isn't that useful for older babies on the move, as this can result in false alarms, so it has a limited lifespan. Overall, this monitor has a reasonable price for a straightforward unit that works for younger infants and is perfect for traveling.  

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walmart

bazaarvoice

The Babysense 7 is a sensor pad monitor that works under the crib mattress. It is easy to use and works well with minimal preparation and setup. This monitor has a straightforward control unit that goes on the crib's front and receives data from the two pads under the crib and sounds the alarm &#40;with red lights&#41; if your infant stops moving after a designated period. The Babysense 7 is one of the most reliable movement options in our tests, with fewer false alarms than the competition. It operates on AA batteries to decrease the potential for accidental strangulation from product cords. Unlike wearable monitors, this option works reasonably well even after your baby is mobile &#40;up to one year old&#41;.  
Like all mattress sensors we've tested, the Babysense 7 requires that the mattress is housed on a hard surface board to function properly. It is also one of the most expensive options in this review. Because the alarm sounds in the nursery and not on a parent unit, it isn't the right choice if you want a parent device. Overall, this movement choice is easy to use and works well for a longer period than much of the competition, thanks to the two sensor pads. We believe most families will appreciate the simplicity and fewer false alarms with this unit and can always add a video or sound monitor as desired.

Movement Monitor Comparison