Are you looking for a real Ninja SS401 review? I spent weeks using this machine in my own kitchen to find out. This blender is for busy people who want thick bowls and smooth drinks. It is a true beast with great motor power.

But it is not perfect. It takes up lots of countertop space. The noise level is very high. Still, it makes a great frozen fruit smoothie fast. Let us look at what it is actually like to use every day.
Quick Verdict
Here is my quick take on this machine after daily use.
| Category | Verdict |
| Best For | Thick bowls and daily smoothies |
| Not Ideal For | Quiet mornings and small kitchens |
| Biggest Strength | Great motor power for thick food |
| Biggest Weakness | Very loud during high speed |
| Overall Rating | 4 out of 5 stars |

Unboxing & First Impressions
Taking it out of the box was fun but heavy. The base is quite large and feels very solid. I noticed a faint plastic smell at first. The cord length is good, but the unit takes up a lot of room.
The BPA-free jar feels clear and thick. The stacked blade assembly looks very sharp and sturdy. I did forget to lock the lid once right away. I made a huge mess because of that. You must listen for the loud click.
Blending Performance
This is where the machine truly shows its worth. The overall blending performance is very strong.
Frozen Fruit Smoothie
I make a frozen fruit smoothie almost every day. I use strawberries, bananas, and cold milk. The smoothie texture comes out silky in just 40 seconds. I did find a small unblended berry once on a low blend speed.
Crushing Ice
Crushing ice is super easy for this machine. The pulse function turns hard ice into soft snow fast. But if you fill it too high, large ice chunks get stuck at the top. You have to stop and shake it.
Thick Blend and Nut Butter
Making a thick blend like a smoothie bowl is great. The built-in tamper tool works very well for this. I tried making peanut butter, too. It got warm and the motor smelled a bit, but it worked fine.
Hot Liquids and Soups
Be very careful with warm liquids in this blender jar. I tried blending a warm soup base once. I opened the leak-proof lid too fast. Splatter marks got all over my clean counter.

Real-Life Daily Use Experience
My morning routine is much faster now. But the loud motor does wake people up early. I have to warn my family before I press start. The variable speed control is very easy to turn and use.
I did notice some odd smells over time. The gasket smelled bad after blending a garlic sauce. You really must wash the blade assembly right away. Fibrous ingredients like ginger also wrap around the bottom blades.
Design & Build Quality
The machine looks nice but has lots of plastic parts. It feels sturdy when placed on a flat counter.
| Part | Material Feel |
| Base Unit | Heavy hard plastic |
| Blender Jar | Clear thick plastic |
| Blades | Sharp steel |
The suction cups on the bottom are very strong. It does not wobble when blending heavy dough. But the shiny screen shows fingerprints very fast.
Noise Level
I have to be honest about the noise level. This machine is wildly loud. Crushing ice sounds like a drill in your kitchen. You cannot talk to anyone while it is running.
Even the pulse function makes a sharp sound. The vibration shakes my coffee cup on the next counter. Do not buy this if you live in a thin-walled apartment.
Cleaning & Maintenance
Cleaning is mostly easy if you do it fast. The self-clean cycle works well for simple drinks.
| Part | Cleaning Difficulty |
| Main Pitcher | Very easy |
| Stacked Blades | Hard, watch your hands |
| Smoothie Bowl Maker | Easy but tricky at the top |
I blended a turmeric drink once. The clear plastic got a slight yellow stain. Also, smoothie mix can leak from the bottom blade seal if not tight. Always rinse the jar immediately so food does not dry.
Pros and Cons
Here is a fair list of the good and bad points. No machine is perfect for every kitchen task.
| Pros | Cons |
| Great at crushing ice | Very loud motor |
| Makes a very thick blend | Sharp blades are hard to wash |
| Nice variable speed control | Gasket traps bad smells |
| Good overall blending performance | Takes up lots of space |
Comparison With Similar Blenders
How does it stand against other popular models? Let us look at a quick match-up against a model I used before.

Ninja SS351
They look very similar on the kitchen counter. Here is how the two compare in real daily use.
| Feature | Ninja SS401 | Ninja SS351 |
| Grating Disc | Yes | No |
| Motor Power | 1200 Watts | 1200 Watts |
| Noise Level | Very Loud | Very Loud |
The SS401 adds a food processing disc. This makes slicing veggies much faster. But both have the exact same loud motor sound.
Who Should Buy This Blender?
This machine fits certain homes better than others. Think about your daily needs first.
| Buy This If: | Avoid This If: |
| You want a thick blend often | You need a quiet machine |
| You process food and slice veggies | You have very little counter space |
| You want fast smoothie texture | You mostly make hot soup |
Long-Term Durability
After weeks of work, the blade assembly is still very sharp. The motor turns on strong every time. But the clear plastic jar does show tiny scratch marks now.
The rubber gasket feels a bit softer than day one. I worry it might leak later on. The buttons and dial still click and feel very new. I expect it to last a few good years.
Energy Efficiency
The 1200-watt motor pulls a lot of power. You can feel the heat buildup during a long five-minute blend.
It works fast, so it does not run for long. Making a single serving is quick. The auto shut-off keeps it safe from burning out. It does push warm air out of the bottom vents.
Final Verdict of My Ninja SS401 Review
This brings my full testing to a close. It is a huge, loud, and very strong machine. The food processing parts are a nice bonus for cooking prep.
I genuinely recommend it if you like smoothie bowls and frozen drinks. Just be ready for the loud noise every morning. It is a great tool if you have the space for it.