Drawing on hundreds of customer reviews across both products and YouTube reviewer coverage, here's a straight look at how the two compare on the dimensions that actually matter.
| Ninja BL660 | Vitamix A3500 | |
|---|---|---|
| Image |  |
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| Customer rating | 4.7 ★ (762) | 4.5 ★ (158) |
| Confidence | 100/100 | 73/100 |
| Price | ~$110 | ~$349–$500 |
| Buy | Check on Amazon | Check on Amazon |
What Owners Say About the Ninja BL660
4.7★ across 762 customer reviews · Confidence: 100/100 · ~$110
With 762 customer reviews averaging 4.7 stars, the Ninja BL660 has one of the strongest confidence scores in its category. Owners consistently praise how much power it delivers relative to its price, calling it capable of handling frozen fruit, ice, and leafy greens without hesitation. The 72-ounce pitcher draws frequent mentions from families who prep large smoothie batches in one go. Reviewers frequently describe it as a machine that "just keeps working" years after purchase, reinforcing the "refuses to die" reputation its review title captures.
The most common caveat owners raise is noise — multiple reviewers describe it as loud enough to wake light sleepers and dominate a kitchen conversation at full speed. A secondary complaint involves the lid and seal, with some owners noting occasional leaking when blending above the fill line.
Read the full review → · Check price on Amazon →
What Owners Say About the Vitamix A3500
4.5★ across 158 customer reviews · Confidence: 73/100 · ~$349–$500
The Vitamix Ascent A3500 carries a 4.5-star average across 158 reviews — a strong rating, though from a smaller base than the Ninja, which is reflected in its 73/100 confidence score. Owners who commit to the price tend to be vocal advocates: they cite the programmable smart presets, the low-profile 64-ounce container that fits under standard cabinets, and the build quality as reasons they consider it worth every dollar. Reviewers with prior Vitamix experience frequently mention the A3500 as a meaningful upgrade, praising the digital timer and self-detect technology for container sizing.
The recurring caveat is straightforward: the price is genuinely hard to justify unless blending is a daily habit. Several reviewers specifically note they deliberated for months before buying, and a handful report that the smart features go largely unused after the novelty fades.
Read the full review → · Check price on Amazon →
Where They Differ
The most obvious gap is price, and it shapes almost every other comparison. At roughly $110, the Ninja BL660 sits in reach of any kitchen budget; the Vitamix A3500 at $349–$500 is a considered purchase that owners tend to research extensively before buying. That price difference also creates a self-selecting review population: Vitamix owners who leave reviews are disproportionately enthusiasts who wanted the best, which can make the Vitamix's 4.5-star average look lower than it functionally is.
Owners of the Ninja frequently call out capacity as a practical win — the 72-ounce pitcher regularly draws comparison to what you'd need for a full family's worth of smoothies in one blend. Vitamix A3500 reviewers more often mention the 64-ounce low-profile container in terms of under-cabinet clearance, flagging it as the reason they chose this model over taller Vitamix options. Different strengths for different kitchens.
Where the Vitamix pulls ahead in customer accounts is blend consistency and longevity at heavy use. Reviewers who report blending hot soups, nut butters, or dense green smoothies daily tend to favor the Vitamix, citing smoother results and confidence in the motor over years of use. The A3500's programmable presets also appear in reviews from owners who appreciated not having to manage speed manually. These are features the Ninja doesn't attempt at its price point.
What the Ninja offers in return is accessibility — not just in price, but in the lower stakes of ownership. Owners report treating it as a workhorse they don't worry about, and several specifically mention replacing or gifting a second unit after years of use without hesitation. The Vitamix demands more care in that calculus: more money in, more expected out.
How We Compared
The confidence score shown for each product combines its star rating with how many people rated it. A 4.7-star average from 762 reviewers is harder to argue with than a 4.7-star average from 30 reviewers — more voices mean the number is more stable. The highest scorer is rescaled to 100; the other is shown relative to it. It is not a quality score; it is a reliability-of-the-rating score.
Well Seasoned's individual reviews consolidate Amazon customer feedback and YouTube reviewer coverage; this comparison aggregates those reviews. No physical testing was conducted by this site.
Prices and ratings reflect values recorded at the time of each individual review and may have changed.
When to Choose Which
| If you care most about… | Choose — and why |
|---|---|
| Highest customer rating | Ninja BL660 — 4.7★ vs 4.5★ |
| Largest body of customer feedback | Ninja BL660 — 762 vs 158 reviews |
| Lower upfront price | Ninja BL660 — ~$110 vs ~$349–$500 |
| Premium pick (if budget isn't the constraint) | Vitamix A3500 — smart presets, low-profile container, and long-haul motor confidence backed by Vitamix's reputation |
| Larger container capacity | Ninja BL660 — 72 oz vs 64 oz |
Pick the dimension that matches what you care about — neither is universally better.
