PBS or leapfrog tablet review

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Does anyone have the PBS toddler tablet for their child and is it any good? My grandmother is already doing her Christmas shopping and is thinking about getting my 3yr old some kind of tablet/game pad and I’d prefer a low tech one and also her budget is small so it has to be under $100. I found the PBS tablet bundled with a fire stick like device on clearance on Walmart.com for around $50 and sent her the link to check it out cause it seemed like a good deal and the reviews seem good. Also looking at the Leapfrog Ultimate ready for school tablet on Amazon since I would be able to get her the game cartridges later on with her fav characters. Looking for honest reviews and recommendations please and thank you!