Of course 747 was 2020’s winner; he’s straight-up the biggest bear — bar none. “When you see him in person, you’re like, ‘yeah, there’s no comparison,’” Whatley said. “He’s definitely the fattest.” By the time hibernation comes around, “Bear Force One” weighs an estimated 1,400 pounds. That’s about half the weight of a small car.“Bear Force One,” is covered in scars and is usually found feasting in the “Jacuzzi,” one of the best fishing spots in the river, where he has to fight off other massive bears to dine.