Main trade-off
Traeger Pro Series 575 WiFIRE Pellet Grill, black
It has no direct-flame searing path.
Head-to-head
Pro 575 is enough for most family cooks. Pro 780 adds 205 square inches for parties but keeps the same 18-pound hopper.
Before you choose
Traeger Pro Series 575 WiFIRE Pellet Grill, black has the stronger fit for “Cook weeknight meals for two” and “Fit a small patio”. Traeger Pro Series 780 WiFIRE Pellet Grill has the stronger fit for “Cook for eight or more people” and “Fit three racks of ribs”.
What this is based on
This compares the current strong and useful fit assignments for the exact products. It does not turn them into one overall score.
Main trade-off
It has no direct-flame searing path.
Main trade-off
The 18-pound hopper is small relative to the 780-square-inch body for very long high-load cooks.


Traeger TFB57GLEO and Traeger TFB78GZEC compared by cooking area, heat and hopper, controls and portability.
The practical choice turns on cooking area, then on the constraints in your own setup.
Winner by situation
Both records list “500°F setting. 18 lb hopper. Indirect heat only” for heat and hopper. Both records show the same result for “Heat and hopper”, so this row does not separate them.
Provide at least about 700 square inches of total published area with usable rack layout.
Provide enough rectangular grate area or use a documented rib rack.
Both records list “Phone monitoring. Full-size patio model” for controls and portability. Both records show the same result for “Controls and portability”, so this row does not separate them.
Favor a narrow body and folding or minimal shelves.
For cooking area, Traeger Pro Series 575 WiFIRE Pellet Grill, black records “575 sq in cooking area” and Traeger Pro Series 780 WiFIRE Pellet Grill records “780 sq in cooking area”. This sets how much food or material can fit in one usable batch, which is more useful than the headline size alone.
What matters in practice
Traeger Pro Series 575 WiFIRE Pellet Grill, black has the stronger fit for “Cook weeknight meals for two” and “Fit a small patio”. Traeger Pro Series 780 WiFIRE Pellet Grill has the stronger fit for “Cook for eight or more people” and “Fit three racks of ribs”.
This compares the current strong and useful fit assignments for the exact products. It does not turn them into one overall score.
9 of 22 checked pellet grills and smokers match this need. Traeger Pro Series 575 WiFIRE Pellet Grill, black is in that group. Traeger Pro Series 780 WiFIRE Pellet Grill is not.
The count filters the current category dataset for a strong or useful fit on this one buyer need.
6 of 22 checked pellet grills and smokers cover both “Cook weeknight meals for two” and “Feed a family of four”. Traeger Pro Series 575 WiFIRE Pellet Grill, black is in that group. Traeger Pro Series 780 WiFIRE Pellet Grill is not.
The count is reproduced by filtering the current category dataset for products with a strong or useful fit for both needs.

Traeger, TFB57GLEO
It provides 575 square inches of cooking area. The pellet hopper holds 18 pounds.

Traeger, TFB78GZEC
It provides 780 square inches of cooking area. The pellet hopper holds 18 pounds.
Meaningful differences
| What changes | Traeger Pro Series 575 WiFIRE Pellet Grill, black | Traeger Pro Series 780 WiFIRE Pellet Grill | Why it matters |
|---|---|---|---|
| Cooking area | 575 sq in cooking area | 780 sq in cooking area | This sets how much food or material can fit in one usable batch, which is more useful than the headline size alone. |
| Heat and hopper | 500°F setting. 18 lb hopper. Indirect heat only | 500°F setting. 18 lb hopper. Indirect heat only | Both records show the same result for “Heat and hopper”, so this row does not separate them. |
| Controls and portability | Phone monitoring. Full-size patio model | Phone monitoring. Full-size patio model | Both records show the same result for “Controls and portability”, so this row does not separate them. |
What you give up
What matters in practice
Both use WiFIRE and reach 500 F.
Pro 780 has 36 percent more published area.
Hopper capacity is identical.
What the facts say
Useful conclusions from the current pellet grills and smokers comparison, followed by the checked facts used to reach them.
None of the 22 models checked covers every part of “Cook weeknight meals for two”, “Feed a family of four”, and “Cook for eight or more people”, so the recommendation favors the closest practical compromise.
0 matching models from 22 checkedTraeger Pro Series 780 WiFIRE Pellet Grill lists 780 sq in for published cooking area, 36% above Traeger Pro Series 575 WiFIRE Pellet Grill, black at 575 sq in.
Match countThe count uses the current product-to-need assignments for “Cook weeknight meals for two”, “Feed a family of four”, and “Cook for eight or more people”. A need with no documented match does not count.
Calculation noteThis uses the maker total cooking-area figure. Upper racks and irregular layouts do not provide the same direct-grate space. 17 of 22 models have comparable published figures for context.
| Product | Needs matched | Checked facts | Source records |
|---|---|---|---|
| Traeger Pro Series 575 WiFIRE Pellet Grill, black |
|
| |
| Traeger Pro Series 780 WiFIRE Pellet Grill |
|
|
Ready to choose?
Open either model on Amazon to check the current price, customer reviews and delivery options.

Cook weeknight meals for two
See price & reviews on Amazon
Cook for eight or more people
See price & reviews on AmazonLinks open in a new tab.