
Ninja QB900B Master Prep
Score: 79/100
Hamilton Beach Food Processor
Score: 75/100Rankings

The Ninja QB900B Master Prep combines a 400-W motor, quad-blade system and interchangeable 48-oz pitcher with a 16-oz chopper bowl, providing strong blending and chopping performance. Its single-speed pulse operation and lightweight construction may limit precise texture control and perceived sturdiness. Great for small households needing a space-saving 2-in-1 blender and processor.

The Hamilton Beach 70730 is a high-power 450 W processor offering versatile slicing, shredding, and chopping with a large 10-cup bowl. Its bulk and weight make it less suitable for small kitchens, and it lacks a safety interlock. Ideal for families needing high capacity and multi-functionality.
| Attribute | ![]() | ![]() |
|---|---|---|
400 W | 450 Wbest | |
0.473 L | 2.37 Lbest | |
| ↓ lower better | 1.814 kgbest | 2.13 kg |
4best | 2 | |
1 yearsbest | 1 yearsbest | |
9best | 3 | |
33.98 cm | 40.6 cmbest | |
15.97 cm | 25.4 cmbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Capacity & Performance(1) | ||
Bowl Capacity (L) | 0.473 L | 2.37 L |
Battery & Power(1) | ||
Motor Power (W) | 400 W | 450 W |
Controls(1) | ||
Speed Settings | 4 | 2 |
Accessories(1) | ||
Number of Included Accessories | 9 | 3 |
Build & Design(6) | ||
Weight (kg) | 1.814 kg | 2.13 kg |
Height (cm) | 33.98 cm | 40.6 cm |
Width (cm) | 15.97 cm | 25.4 cm |
Depth (cm) | 22.0 cm | 21.6 cm |
Blade Material | stainless steel | stainless_steel |
Blade Type | quad blade | s_blade, reversible_slicing_shredding_disc |

Products in the top-left offer the best value (high score, low price).

Professional reviewers highlight the Ninja QB900B's 400 W motor and Quad Blade system for superior ice crushing and uniform chopping, while praising the interchangeable pod for versatile prep. They note the convenience of dishwasher-safe parts and a compact footprint, but point out the lack of variable speed options and the occasional difficulty cleaning blade crevices.
Everyday users overwhelmingly praise the unit for its smooth blending, strong performance on daily smoothies, and space-saving design. Common themes include appreciation for the easy-to-clean top-motor layout and the ability to handle nuts and herbs, while the primary complaints revolve around blade cleaning and the perception of a lightweight, less solid feel.



Professional sources are limited; product pages and retailer descriptions highlight the powerful motor, multi-functionality and easy cleanup, but note the lack of independent third-party reviews.
Everyday users appreciate the motor power, dishwasher-safe parts and compact size of the 3-cup version, but commonly mention the absence of slicing/shredding capability in smaller models and the bulkiness of the larger 8-cup unit.