Are grizzly bears bigger then horses?

There are many differences in a horse and a grizzly.

To name a few:

A horse is a prey animal, while a bear is a predator.

A horse can only stand on its hind legs for a short period of time, a grizzly can stand much longer.

A horse is more commonly tamed than a grizzly, not saying that some grizzlys arent.

The average horse weighs more than the average grizzly.