A module changes the work; it does not remove integrationBoth routes need installed-product tests. A discrete radio adds chip-level layout and matching responsibilities; a module still imposes host-board and enclosure conditions.A module changes the work; it does not remove integrationChoose the architecture by engineering effort as well as unit cost.Shared decision: enclosure, battery, firmware and RF test planIntegrated moduleVendor RF implementationHost keepout + placementModule integration conditionsDiscrete radioChip reference matchingBoard-level antenna tuningMore RF release responsibility³Ô¹Ïtv engineering illustration · conceptual, not to scale · no measured product data