Featuring automatic operation, the Hamilton Beach 56205 Smoothie Smart Blender allows the awake and the not-so-awake alike to enjoy easy, one-touch smoothie blending via a dedicated smoothie button.

The NutriBullet Immersion Blender NBI50100 outperformed many of the more expensive immersion blenders we tested, turning out extremely smooth purees on a par with our top pick, though it didn’t ...