Ninja BL642 Nutri Ninja Personal & Countertop vs Ninja SS151 TWISTi Blender DUO, High-Speed 1600 WP
Updated August 2026 — Ninja BL642 Nutri Ninja Personal & Countertop wins on cleaning, Ninja SS151 TWISTi Blender DUO, High-Speed 1600 WP wins on power and versatility.
The Ninja SS151 offers more power and versatility, making it a better choice for varied culinary tasks, while the BL642 is ideal for larger batches.
Why Ninja BL642 Nutri Ninja Personal & Countertop is better
Price
BL642 is $149.99, SS151 is $129.95
Capacity
BL642 has a larger 72 oz pitcher
Recipe Guide
BL642 includes a 75-recipe inspiration guide
Why Ninja SS151 TWISTi Blender DUO, High-Speed 1600 WP is better
Power
SS151 has 1600 peak watts vs 1200 watts
Functions
SS151 offers 5 functions vs BL642's primary focus on smoothies
Portability
SS151 includes two to-go cups for convenience
Overall score
Specifications
| Spec | Ninja BL642 Nutri Ninja Personal & Countertop | Ninja SS151 TWISTi Blender DUO, High-Speed 1600 WP |
|---|---|---|
| Motor Power | 1200W | 1600W |
| Auto-iQ | Yes | Yes |
| Dishwasher Safe | Yes | Yes |
| Recipe Guide | 75 Recipes | 10 Recipes |
| Tamper | No | Yes |
Dimension comparison
Overview of the Ninja BL642 Nutri Ninja and Ninja SS151 TWISTi Blender DUO
The Ninja BL642 Nutri Ninja Personal & Countertop Blender is priced at $149.99, while the Ninja SS151 TWISTi Blender DUO comes in at a lower price of $129.95, making it about 17% cheaper. Both blenders are designed for high performance, but they cater to slightly different needs and preferences. The BL642 boasts a powerful 1200-watt motor, while the SS151 steps up the power to 1600 peak watts, promising superior blending capabilities.
Design and Build Quality
In terms of design, both the Ninja BL642 and the Ninja SS151 have a modern aesthetic that fits well in any kitchen. The BL642 features a 72 oz Total Crushing Pitcher, ideal for making large batches, while the SS151 comes with a 34 oz pitcher and two to-go cups, enhancing its portability. The BL642's larger pitcher makes it more suitable for families or gatherings, whereas the SS151's design focuses on convenience and individual servings. Both blenders have dishwasher-safe components, ensuring easy clean-up.
Power and Performance
The Ninja SS151 has the edge in power with its 1600 peak watts compared to the 1200 watts of the BL642. This additional power translates to potentially smoother blends and the ability to handle tougher ingredients without stalling. The BL642 excels in its Total Crushing Technology, which quickly pulverizes ice and frozen ingredients, making it excellent for frozen drinks. However, the SS151 features smartTORQUE technology that maintains high speed even with heavy loads, ensuring consistent performance.
Blending Features
Both blenders incorporate Auto-iQ technology, removing the guesswork from drink-making by using intelligent programs that blend, pulse, and pause automatically. The BL642 also emphasizes its Pro Extractor Blades, designed to break down whole fruits and vegetables for maximum nutrient extraction. Meanwhile, the SS151 includes a built-in Twist Tamper, which helps push ingredients down to the blades for thicker and more even results, particularly beneficial for nut butters and smoothie bowls.
Versatility
When it comes to versatility, the Ninja SS151 offers five functions including smoothie, spreads, and bowls at the touch of a button. This feature allows for a wider range of culinary creations compared to the BL642, which primarily focuses on smoothies and shakes. However, the BL642's inclusion of a recipe inspiration guide with 75 recipes helps new users explore various blending possibilities, making it a great choice for those looking for guidance.
Portability
Portability is a strong suit for the Ninja SS151, which comes with two to-go cups that allow you to blend and drink on the move. The smaller pitcher size also makes it more convenient for single servings, whereas the BL642, with its larger pitcher and multiple cup sizes (18 oz, 24 oz, and 32 oz), is better suited for preparing larger quantities at once. If you're often on the go, the SS151’s design may appeal to you more.
Clean-Up and Maintenance
Both models excel in clean-up, as all parts are BPA free and dishwasher safe. This makes maintenance straightforward for both blenders. However, the SS151's design may be slightly easier to clean due to its smaller components. The ease of cleaning is a critical consideration for users who want to spend less time in the kitchen and more time enjoying their creations.
Which should you buy?
Ultimately, your choice between the Ninja BL642 Nutri Ninja and the Ninja SS151 TWISTi Blender DUO will depend on your specific needs. If you prioritize power and versatility for various culinary tasks, the Ninja SS151, priced at $129.95 and featuring 1600 peak watts, may be the better option. However, if you need a larger pitcher for family-sized servings and appreciate the inclusion of a comprehensive recipe guide, the Ninja BL642 at $149.99 could serve you well. Consider what features matter most to you: power, capacity, or versatility, and make your decision accordingly.

