Had the previous version of the 7 before upgrading to this one. I used to get so tired of constantly having to recharge that thing, to the point where it was almost always dead and my child couldn't use it. It also lagged a whole lot. This one, on the other hand, stays charged for several days, doesn't lag (opening up youtube videos on the other one would end up in this annoying loop of trying to play the video and stopping, but this one is pretty much instant) I think it's double the RAM so that makes sense. My non-verbal toddler has become very good at using this device and can navigate what he wants to do on his own, and it's nice to see him excel at something when he is delayed in everything else. We don't yet know for sure if he is on the spectrum but for parents stuck in that waiting period of testing this has been really good when it comes to choosing what he wants to do and other skills. It's helped a lot.