[Galaxy S 5 General] BoneXDA:
Haven't seen many, though here are some:

http://xdaforums.com/showpost.php?p=50831790&postcount=60

In good lighting conditions the S5 should definitely improve on motion compared to the S4/Note3, in lower light however it's still a question how does it handle movement, flash may be necessary, or using sports mode which ups ISO for faster shutter. (EDIT: one other way to capture the perfect family moment on a phone is by recording the scene in a short 4k video, so you have a video footage of the event and can pull single 8MP frames with VLC Media Player, see the links at the end of this post, taken from 4k video: http://xdaforums.com/showpost.php?p=51609462&postcount=236 )

Chipworks tore down and identified the S5's ISOCELL camera

Source: http://www.chipworks.com/en/technic.../resources/blog/inside-the-samsung-galaxy-s5/

"One of the biggest stories of the Galaxy S5 is the new 16 MP, 1/2.6” optical format primary camera module. Going back to the Galaxy S II we found back-illuminated Samsung and Sony 8 MP, 1/3.2” optical format CMOS image sensor chips in S II phones from different regions. All the Galaxy S III phones we analyzed used 8 MP Sony camera chips, suggesting the Sony team captured all the business for the third iteration of Samsung’s marquee smartphone. This apparent trend continued on to the Galaxy S4 and Note 3, which used the popular 13 MP Sony IMX135 featuring Sony’s stacked chip (Exmor-RS) technology.

Not to be outdone, the Samsung image sensor team developed its ISOCELL technology. Announced in September, 2013 [1] ISOCELL reportedly enables a 30% reduction in crosstalk and 30% increase in full well capacity. Samsung described ISOCELL technology in a February webinar and again at Image Sensors 2014, promoting it as the next key image sensor technology after back-illuminated (BSI) sensor technology. The salient points include: the successful implementation of front deep trench isolation (F-DTI) and vertical transfer gates (VTG). We found both of these technology elements in 2013 from other companies: F-DTI from STMicroelectronics in its HTC ONE UltraPixel camera chip, and VTGs from Sony in a Cyber-shot camera [2]. Below is a cross-section of an 8 MP version of Samsung’s ISOCELL technology showing the F-DTI and VTG. For clarity: this is not from the Galaxy S5, but we expect to uncover the same fundamental structures as we dive in to our 16 MP ISOCELL analysis. We also expect to find phase detection autofocus (AF) pixels and will update our teardown when we have more details.

The Samsung CIS group isn’t stopping there. It announced a stacked chip image sensor in February at Mobile World Congress [3]. While Samsung hasn’t been first to market with new technology elements such as BSI, per-pixel DTI, VTG pixel transistors, or stacked chip, it continues to successfully bring these technologies into mass production. What will we find in upcoming Samsung flagship phones? Time will tell, however it appears that at this moment in time Samsung can go toe-to-toe with Sony and win.

[Update] We’ve removed the 16 MP ISOCELL primary and 2.0 MP secondary camera chips from the respective camera modules and found two back-illuminated Samsung CMOS image sensors. The primary camera chip, having S5K2P2XX die markings, features a 1.12 µm pixel pitch. Phase-detection pixel pairs are distributed across nearly the entire active pixel array. This marks the smallest phase detection pixel generation we’ve seen and only the second time we’ve seen them on a back-illuminated chip (Toshiba was first @ 1.4 µm). The presence of phase detection pixels also implies the use of a back aperture grid (with the phase detection pixels being half-masked). The use of an aperture grid would also be a first for Samsung (based on our analysis) and we’ll be covering this and the other technology elements in our planned full report"

Major props for Chipworks to give the most detailed and quality look inside the ISOCELL technology so far!