An illustration of two blender brands.

In CR’s blender lab, our test engineers conduct exhaustive tests on blenders—evaluating their abilities to crush ice, make smoothies, and purée soups—to help you choose which blender deserves to grace your countertop.

But performance in these tests is only one aspect of a blender’s Overall Score. We also factor in brand reliability and owner satisfaction ratings based on data from our annual member survey. 

Every year we ask our members about the products they own, and use that data to make projections about how new models from a given brand will hold up over time. “The ones rated Excellent for predicted reliability are less likely to have any issues in the long run, while the ones rated Poor are more likely to give owners a problem-filled experience,” says Simon Slater, CR’s manager of survey research.

More on Blenders

We also ask members how likely they are to recommend their blender, and that serves as the basis for our owner satisfaction rating. The latest survey provided data on more than 29,000 blenders purchased by CR members between 2008 and 2018. You can find information on predicted reliability and owner satisfaction in our ratings.

Below are the best and worst brands for full-sized blenders and personal blenders in terms of reliability and owner satisfaction. Our survey results cover 13 brands, including Blendtec, Hamilton Beach, Ninja, Oster, and Vitamix. 

Most Reliable Full-Sized Blenders

CR members have told us that they expect to use their full-sized blenders for 10 years. But judging by our brand reliability ratings, that might be optimistic.

Most brands receive only a moderate Good rating for predicted reliability. And only a handful receive a rating higher than Good for owner satisfaction. In fact, Vitamix is the only blender brand to receive top ratings for both predicted reliability and owner satisfaction. Coming in at a close second, Ninja rates Excellent for predicted reliability and Very Good for owner satisfaction. 

Here’s a closer look at two full-sized blenders from Vitamix and Ninja that performed well in CR’s tests:

Quick Take

Vitamix 5200

Price: $450

Icy drinks (Smoothies)
Puree
Ice crush
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Quick Take

Ninja Professional NJ600

Price: $100

Icy drinks (Smoothies)
Puree
Ice crush
Unlock Blender Ratings

Least Reliable Full-Sized Blenders

At the other end of the spectrum, Blendtec is the only brand to receive a subpar rating for reliability: It earns a Fair. The rest of the brands receive middle-of-the-road Good ratings for predicted reliability, including Black+Decker, Breville, Braun, Cuisinart, Hamilton Beach, KitchenAid, and Oster. 

Predicted reliability doesn’t mean owners wouldn’t recommend their blenders, though. Blendtec and Breville rate just as well as Vitamix for owner satisfaction. However, Hamilton Beach earns the only Poor rating for owner satisfaction; Black+Decker rates slightly higher, with a Fair.

Most Reliable Personal Blenders

None of the personal blender brands in our survey gets top marks for reliability and satisfaction, but Ninja comes close with a Very Good rating on both. Black+Decker also earns a Very Good reliability rating, but it’s the only brand to get our lowest rating for owner satisfaction, meaning our members are not very likely to recommend Black+Decker personal blenders to others. Cuisinart and Oster receive middling Good ratings for both predicted reliability and owner satisfaction.

Here are the details on two recommended personal blenders from CR’s tests:

Quick Take

Ninja with DUO Auto-iQ BL642 Personal

Price: $200

Icy drinks (Smoothies)
Puree
Ice crush
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Quick Take

Black+Decker PowerCrush PB2000G

Price: $40

Icy drinks (Smoothies)
Puree
Ice crush
Unlock Blender Ratings

Least Reliable Personal Blenders

Despite its name being almost synonymous with personal blenders, NutriBullet rates Poor for reliability (the lowest possible rating) and receives a middling Good rating for owner satisfaction. Bella receives the same ratings as NutriBullet. Hamilton Beach does slightly better, getting a Good rating for predicted reliability and a Fair rating for owner satisfaction.