Full size Yoto versus mini

Hey Everyone,

My 18-month-old loves music. We play music all day long in our house on the record player. We decided to get him the Yoto when he turned 11 months. Best thing I have ever bought him to be honest. He loves it. He is now 18 months, and we use the Yoto daily. He is able to insert his own cards. Sometimes he needs help finding the song he desires, but he is 80% self-sufifcient with it. We use the mini for car rides and stroller walks, but we mostly use the mini while in the house. Is there any utility in getting the full-size Yoto? The battery isn't great with the mini, and I am wondering if having a full-size one might be easier to operate while he is at home.