The Magic Bullet and the NutriBullet are very similar systems, but the NutriBullet is more powerful than the Magic Bullet and has a larger capacity. The Magic Bullet is generally lower in price than the NutriBullet.
The NutriBullet contains a 600-watt motor while the Magic Bullet's motor is only 250 watts. The standard blender cup for the NutriBullet holds 24 ounces while the Magic Bullet's blender cup holds 18 ounces. It should also be noted that the Magic Bullet website mentions a Bullet pitcher which holds 32 ounces and is available through the website or over the phone.
The NutriBullet retails on Amazon for $90, while the Magic Bullet is $50, as of 2015. These prices are different on the respective product websites, however. On the Magic Bullet website, the blender costs roughly $100 but is offered as a two-for-one package with a second Magic Bullet blender. The NutriBullet offers a similar two-for-one deal for around $120. Both prices do not include a shipping and handling charge of approximately $40.
The Magic Bullet comes with two blades, two blender cups and four handled party cups, while the NutriBullet comes with one specialized blade, two blender cups and one extra handled cup. Both systems come with a recipe book. The NutriBullet comes with a "pocket nutritionist" shopping guide.