What advantages does the Exmor IMX378 have over the IMX377?

[Octo Man]

What makes the Exmor IMX378 in the Pixel/XL phone better than the IMX377 in the Nexus 5X/6P?

 

[xxaarraa]

Better integration with Snapdragon, better software optimization by google - smartburst and HDR+

 

[zezinhuutheman]

does it makes it faster? i mean in a way you can notice?

 

[xxaarraa]

Yes read the dxo mark review, it says it's much faster at hdr processing than the 6p.

 

[Octo Man]

I found this
Sony IMX378: Comprehensive Breakdown of the Google Pixel's Sensor and its Features