Here are some pictures for comparison. Model is 5.5 yrs and 44 lbs 44 inches tall. Apparently the Vivo doesn't adjust as high as the PW. Last picture shows how it fits nicely in the center of my Camry- the PW was too tippy there- I like the base of the Vivo much better. DD likes it and we tried it out this morning- then school was cancelled for sleet. The belt sits nicely on her hips, and across the shoulder. Sorry, no pics of her in the car yet. In case anyone wants to know- I got my Vivos at Albee for $69.99 each.