I - Difference in Image Search

Bing is designed to deliver more quality image search results than Google. Bing allows you to search for image attributes such as layouts and also licensing info for each image.

Also, infinite scrolling for image search was pioneered by Bing, although others have caught up with the features. Google offers support for image search though, it isn't as extensive as the one offered by Bing.

II - Video Search

Video Search in Bing tends to deliver a better user experience than that of Google. Whenever a video search is done on Bing, the results are displayed as a thumbnail grid. This makes it possible for you to watch any videos without leaving Bing SERP (Search Engine Results Page).

III - Voice Activated Search

In terms of voice search, Bing seems to be growing more steadily in influence in the search market.