KOIOS Smoothie Blender
- Countertop Blender
- 22 fl oz
- 1000 watts
- Corded electric
- More reviewed than 71%
A capable everyday shake blender for the price, though a few owners have seen the motor give out after several months of regular use.
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How it ranks among the 135 countertop blenders we track
4.4★ across 958 Amazon ratings, Bayesian-smoothed toward the category average.
958 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
1,000+ bought on Amazon last month.
Brand identity, imagery, description and spec coverage.
The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 135 countertop blenders we track - how the scorecard works · full countertop blenders data report. Confidence: medium - useful but incomplete evidence.Last refreshed Jun 13, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.
Overview
This personal blender combo runs at up to 1000 watts and pairs two 22oz to-go cups with an 11oz grinding cup, activated by pressing the cup onto the base rather than a button.
The cups double as drinking containers once blended, which cuts down on extra dishes, but the tradeoff reviewers flag is that it only runs while you keep the cup pressed onto the base. It's positioned as a budget alternative to name-brand personal blenders.
- Max 1000W all-copper motor rated to 30000 RPM
- Two 22oz to-go cups plus an 11oz grinding cup with sieve lid
- Detachable stainless steel blades
- Anti-slip suction feet on the base
Who it's for
Good for people making daily protein shakes, smoothies or small batches of ground coffee who want a compact footprint. Not for anyone who wants to start a blend and walk away.
What buyers say
From Amazon customer reviews.
Buyers making daily protein shakes describe smooth results with no chunks and like that the blending cup doubles as their drinking cup. The main complaints are that it isn't hands-free, since you must hold the cup down while it runs, that it's loud, and one reviewer's unit died after about 5 months of regular use.
Strengths and trade-offs
Drawn from this product's published specifications.
- Blend cup doubles as the to-go cup
- Includes a separate grinding cup for coffee or nuts
- Suction feet keep it steady during use
- Must be held down the entire time it runs, no hands-free option
- Several reviewers describe it as loud
- One owner's motor failed after about 5 months of regular use
Performance notes
Blending starts when the cup is pressed onto the base rather than with a button, and an overheat sensor pauses the motor with about a 20 minute cooldown if it runs too long. Blades detach for cleaning and both cups are dishwasher safe.
Specifications
| Brand | KOIOS |
|---|---|
| Model | BL309B |
| Dimensions & fit | |
| Item Dimensions D x W x H | 10.8 × 5.7 × 10.4 inches |
| Capacity & performance | |
| Capacity | 22 fl oz |
| Number of Speeds | 1 |
| Power & efficiency | |
| Wattage | 1000 watts |
| Power Source | Corded electric |
| Voltage | 120 volts |
| Construction & materials | |
| Material | Plastic |
| Container Material | Stainless Steel |
| Material Type Free | PVC Free, BPA Free |
| Blade Material | Stainless Steel |
| Color | Silver |
| Included components | |
| Unit Count | 12 |
| Included Components | Main Blender, Cups, lids, Cleaning brush |
| Warranty & support | |
| Warranty Type | Full |
| Warranty Description | 90 days |
| Other details | |
| Control Type | Touch, Push button |
| Container Count | 2 |
| Is the item dishwasher safe | Yes |
| Recommended Uses For Product | Blending |
| Style | Countertop Blenders |
| Part Number | BL309B Smoothie Blender |
| Item Type Name | BL309B Smoothie Blender |
| Other Special Features of the Product | Coffee / Mixer Grinder, Multiple Attachments, Pulse Technology, Removable Blade, Smoothie Blender |
Other KOIOS countertop blenders
How it compares
This product against the closest alternatives we track in countertop blenders.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| KOIOS Smoothie BlenderThis product | 4.4 / 5 | 958 | 4.1 / 5 |
| Ninja BN801 Professional Plus Kitchen SystemNinja | 4.8 / 5 | 14,563 | 4.7 / 5 |
| NutriBullet NBR-1201 12-Piece High-Speed Blender/Mixer SystemNutriBullet | 4.5 / 5 | 26,800 | 4.6 / 5 |
| Vitamix E310 Explorian BlenderVitamix | 4.6 / 5 | 5,483 | 4.4 / 5 |
| Ganiza Smoothie BlenderGaniza | 4.4 / 5 | 5,926 | 4.2 / 5 |
Similar countertop blenders from other brands
Questions about the KOIOS BL309B
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
Does the KOIOS BL309B blend hands-free?
No, reviewers say you have to keep pressing the cup down onto the base for it to run, there is no lock.
What's included with the KOIOS Smoothie Blender combo?
The 1000W base, two blade sets, two 22oz cups with drinking lids, and an 11oz grinding cup with sealing and sieve lids.
How durable is the KOIOS blender with daily use?
Most reviewers report months of regular use without issues, though one owner's unit stopped working after about 5 months.