Smart Bidding is Google Ads automated bidding strategies that use machine learning to optimize for conversions or conversion value.
It matters because paid search can spend budget quickly. Knowing this term helps teams control intent, targeting, bidding, creative, conversion tracking, and lead quality instead of optimizing for surface-level clicks.
Example
A service business validates its qualified-lead conversion action before using conversion-focused automated bidding. Smart Bidding can then evaluate auction-time signals against that goal. If the account instead counts every page visit as a conversion, automation is optimizing toward a different outcome.