Quick takeaway
Cosori Dual Blaze 6.8 Quart and Ninja Foodi 10-Quart Dual Zone are very close in this matchup. When the overall score is tied, the right choice usually comes down to price, review depth, and which spec wins matter most for your use case.
Choose Cosori Dual Blaze 6.8 Quart if...
Pick Cosori Dual Blaze 6.8 Quart if programs are the reasons you are shopping in this category.
Choose Ninja Foodi 10-Quart Dual Zone if...
Pick Ninja Foodi 10-Quart Dual Zone if temperature range, wattage, and capacity are the reasons you are shopping in this category. It currently costs about $80.00 more, so make sure those wins matter to you.