TUAW has posted the best criticism to the Wall-Huggers Samsung commercial:

So, let me get this straight. If I put my amazing Galaxy S5 into ultra power saving mode, I’ll see everything in grayscale, I’ll only be able to run a few apps, mobile data will be turned off when the screen is off, and WiFi and Bluetooth are totally disabled.

Basically ultra power saving mode in the Samsung S5 makes the smartphone a doorstopper or something similar.

You can only run the text messages, phone,  calculator, Google+, ChatON, Memo, Voice Recorder and Clock apps. In addition you can browse the web with Samsung’s own web browser.

How useful can a smartphone be with this app selection? I’m thinking of the few times I ran out of juice on my iPhone and the use case to have a power saving mode, and can’t find it.

TUAW ends the article with:

Gee, I can attach an external battery pack to my iPhone and don’t have to pop the cheap plastic back of my phone to do it…

Indeed.