[G2 General] Ghstudent:
Alright, quick review now that I've been using it for 2 days.

*please note this is purely out of the box experience on both phones, just to keep it fair.*

Camera: holy hell. The s5 camera is amazing. To me it just blows the G2 camera out of the water. So much faster auto focus, brighter & more accurate colors, instant shutter instead of having to hold the phone still for a second or two every time you slightly move the phone. Plus, all the camera features are amazing. Especially the selective focus shots. Looks extremely professional.

Responsiveness: once again, this is going to the galaxy. Everything seems to snap more in this phone, as if every app were made for it. Even using chrome browser feels like a day and night difference. The zoom is the smoothest that I have seen on any phone. This holds true with everything from gesture typing to just scrolling the home screen. That snapdragon 801 is a beast.

Battery: of course the G2 kills the S5 in this field. The 2800 mAh battery just doesn't stand a chance. Especially with the brightness of the superAmoled+ screen. I have yet to be able to get a whole day of heavy use out of it like I was the G2, but I expected this going in. The phone does a really good job of putting itself into deep sleep though. I am doing nothing to conserve battery (as usual), I have twitter, Facebook, Instagram, vine, ifunny, etc installed, so I was surprised when I realized that the phone was only dropping around 1%/hr with the screen off. But, I have also only had the phone 2 days, things are still breaking in. If anything changes I will come back and edit this.

Display: the display on the S5 is amazing. Holding the G2 side by side the resolution itself looks almost identical, however, the G2 does appear to show whites more accurate while the S5 displays black more accurate due to the magic going on in the amoLED display.

Gimmicks:

-fingerprint scanner: this one was by far the most frustrating to me. The fingerprint scanner was one thing that really caught my attention about this phone. Since it's Samsung making it I figured it would be as good or better than my old 5s. Unfortunately, I was wrong. Don't get me wrong, it isn't terrible, it works, it really does; there is just a technique to it that you have to teach yourself in order to do it one handed (the scanner is designed to be used two handed, one hand holding the phone with the finger on the other hand being scanned.) Now that I have figured out how to do it, I am proud to say that I can successfully use the scanner 95% of the time.

-IP67:I have not got to test this thing out against dirt yet (waiting until I go dirt bike riding again) but you best believe that within 4 hours of the beauty coming in the mail I was texting people in the shower. It really works! I was worried because the aux port is left open, but somehow they have managed to make it work! I have run it under a stream of water from the sink to wash the screen off (which, by the way, works wonders!) And I believe I got some water in the aux jack or something because the auxiliary did go a little faulty for about 30 minutes, but it seemed to fix itself!

Touchwiz:my only gripe about touchwiz this time around is that it looks cartoony to me, almost like a child's toy. The DPI definitely needs to be dropped a bit, that would make this display amazing. Everything else is fine. I love the Samsung "Gimmicks". The multi window, gestures, etc. work great as usual.

Final: The S5 is a great phone, it's lighter, it's faster (just enough to be noticeable), the camera is about as good as it gets on a smartphone, and it can read fingerprints and take a dive. If none of this matters to you, there is no logic in you purchasing the S5. But, if you are in need of a better camera or a dust and waterproof phone, you can't go wrong with the S5!