There are a few key differences between Vitamix and Blendtec blenders that you should consider before making a purchase. First, Vitamix blenders are generally more expensive than Blendtec blenders. However, Vitamix offers a wide range of models to choose from, so you can find one that fits your budget. Second, Vitamix blenders tend to be quieter than Blendtec blenders. If noise is a concern for you, then a Vitamix may be the better option. Finally, Vitamix blenders have a longer warranty than Blendtec blenders. So, if you're looking for a durable blender that will last for years to come, then a Vitamix is the way to go.