The KitchenBoss G330 builds on the well-regarded G300 by adding app and touch controls, a larger 21.1 qt capacity, and a black stainless finish, all for $169.99. It is the right pick for sous vide cooks who want remote monitoring without stepping into professional-grade pricing.
Home cooks who want app-based remote control and a larger cooking capacity without crossing the $200 threshold.
Skip if
You have no interest in app connectivity, or the $106 G300 meets your capacity needs, making the $64 premium hard to justify.
Capacity 21.1 qt
Power 1100 W
Material Stainless Steel
Controls App, Touch
Color Black
Dimensions 7.5 X 17.7 X 4.3 In
Priced 43% above the category median ($118.55 across 11 tracked models)
Capacity of 21.1 qt - larger than 60% of the 11 models we track
Weight of 3.6 lb - heavier than 62% of the 11 models we track
Pros
App and touch controls give you both remote and manual operation
21.1 qt capacity is larger than most consumer sous vide competitors
1100W maintains fast preheat performance
Stainless steel in a black finish for a clean countertop look
4.5 stars from 436 reviews is consistent with the KitchenBoss brand track record
Cons
At $169.99, it costs $64 more than the near-identical G300
The wider 7.5-inch profile may not fit all container styles
436 reviews is a smaller sample than the G300's 2,255
App dependency adds a failure point if software updates break compatibility
Our scorecard
4.4/5overall
Owner rating4.5/5
4.5 average across 436 owner ratings
Popularity3.2/5
436 owner reviews, more than most models here
The overall score is owner satisfaction weighted by how many reviews back it, so a high rating from few reviews counts for less. The bars below show where this model stands against the other slow cookers, electric pressure and rice cookers, sous vide, food dehydrators, egg cookers, popcorn poppers, and ice cream and shaved ice machines we track in this category on price, popularity and size. Context, not marks against it, and our read of the data, not a lab test.
Overview
The KitchenBoss G330 is an immersion circulator that adds app and touch control to the same 1100W core found in the KitchenBoss G300. The companion app lets you monitor and adjust temperature and cook time from your phone, which is useful for longer unattended cooks. The G330 is rated for containers up to 21.1 quarts, a meaningful step up from the G300's 16.9 qt rating.
The stainless steel build comes in black, and at 3.6 lb with dimensions of 7.5 x 17.7 x 4.3 inches, it is a wider unit than the standard slim-profile G300. That wider footprint at the clamp end is worth noting if you use smaller pots.
With 436 ratings at 4.5 stars, the G330 has a solid if smaller review pool than its sibling. At $169.99 it sits at the top of the mid-consumer range before prices jump toward professional territory.
Performance notes
The G330 shares the G300's 1100W element and 3.6 lb weight, so heat-up performance on equivalent water volumes should be comparable. The 21.1 qt capacity means it is rated for containers roughly 25 percent larger than the G300. The added app layer allows scheduling and temperature adjustments from a phone, which is particularly useful for 24-plus-hour cooks on tough cuts like short ribs or brisket.
What buyers say
At 4.5 stars from 436 reviews, the G330 matches its sibling's score but with fewer total buyers. Positive reviews emphasize the convenience of app control for long cooks. A recurring theme in critical feedback is Wi-Fi connectivity setup, which some buyers find finicky on initial pairing. Once connected, buyers generally report stable operation.
Similar slow cookers, electric pressure and rice cookers, sous vide, food dehydrators, egg cookers, popcorn poppers, and ice cream and shaved ice machines to consider
Does the KitchenBoss G330 require the app to function?
No. The G330 has onboard touch controls and operates fully without the app. The app is optional and adds the ability to start, stop, monitor, and adjust cooks remotely from a smartphone. You can use it as a standard touch-control circulator if you prefer.
Is the G330 worth $64 more than the G300?
It depends on how you cook. The G330's app control is genuinely useful for cooks lasting 12 to 48 hours, where periodic manual checking is impractical. The 21.1 qt versus 16.9 qt capacity difference matters if you regularly fill large containers. If you cook mostly shorter recipes and stay near the kitchen, the G300 delivers the same core heat performance for less.
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