KitchenAid K400 Red
Score: 86/100
Vitamix Ascent X2
Score: 86/100Rankings
The KitchenAid K400 is a high-performance 56-oz blender featuring a 1.5 HP motor, five speeds and three preset programs for versatile home use. Its heavy weight, plastic jar durability concerns, and short cord may deter users needing portability or insulated containers. Suited for families and avid smoothie makers who prioritize power and feature richness.
The Vitamix Ascent X2 SmartPrep combines a powerful 2.2 HP motor with a compact 48-oz blender and a 12-cup food-processor attachment, offering versatile 2-in-1 functionality. Its trade-offs include a limited jar size and a higher price point despite quieter operation. Best suited for small families or individuals who need both blending and food-processing in a space-saving design.
| Attribute | | |
|---|---|---|
1,200 Wbest | — | |
1.65 Lbest | 1.4 L | |
5 years | 10 yearsbest | |
5 | 10best | |
1.5 HP | 2.2 HPbest | |
— | 120 Vbest | |
3best | 3best | |
| ↓ lower better | 5.443 kg | 5.17 kgbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Warranty & Support(1) | ||
Warranty (years) | 5 years | 10 years |
Power & Performance(2) | ||
Horsepower (HP) | 1.5 HP | 2.2 HP |
Voltage (V) | 120-240 V | 120 V |
Controls(1) | ||
Number of Speed Settings | 5 | 10 |
Accessories(1) | ||
Included Accessories | 5 | 12 |
Design & Build(5) | ||
Jar Capacity (L) | 1.65 L | 1.4 L |
Product Weight (kg) | 5.443 kg | 5.17 kg |
Dimensions (H×W×D) | 40.1x22.9x19.3 cm | 17.0x7.75x9.75 inches |
Blade Material | stainless steel | Precision hardened stainless steel |
Jar Material | plastic | BPA-free |
Products in the top-left offer the best value (high score, low price).
Professional reviewers highlight the K400's 3-part blending system and Intelli-Speed auto-adjustment as key strengths, noting its ability to handle tough ingredients like kale and almonds with ease while maintaining quiet operation and a durable build.
Everyday users consistently praise the blender for delivering smooth, consistent drinks, the convenience of preset programs, and its compact footprint that fits under cabinets.
Professional reviewers commend the Ascent X2 for its sturdy construction, powerful 2.2 HP motor, and versatile 2-in-1 design that excels at smoothies, hot soups, nut butters, and precise food-processing tasks. They highlight its quieter operation relative to older Vitamix models and the convenience of SELF-DETECT technology and preset programs, while noting the 48-oz jar may be restrictive for larger households.
Everyday users appreciate the smooth blending results, compact footprint, and the added food-processor attachment that streamlines meal prep. Common praise centers on ease of use, self-cleaning, and suitability for single-serve or small-family meals, while recurring complaints focus on the limited jar capacity and noticeable noise during prolonged high-speed blending.
“producing consistent smoothies and icy drinks via Intelli-Speed auto-adjustment”
“Users love smooth blending of whole foods into smoothies”
