Sega GameGear. That thing had a better screen than any portable gaming device would for another 20+ years, but it would eat 6 AA batteries in less than an hour. There were rechargable battery packs you could get for it but they were heavy as shit and didn’t last noticeably longer, you could play it with the battery pack plugged into the charger but then you’re not actually mobile at all so you might as well play the same games on the Genesis.
Sega GameGear. That thing had a better screen than any portable gaming device would for another 20+ years, but it would eat 6 AA batteries in less than an hour. There were rechargable battery packs you could get for it but they were heavy as shit and didn’t last noticeably longer, you could play it with the battery pack plugged into the charger but then you’re not actually mobile at all so you might as well play the same games on the Genesis.