What's your price range and what kind of protection are you looking for?

 

As far as screen protectors go... you've got plastic (ranging 10-20 each) or tempered glass (ranging 20-40).

I'll let you research which YOU prefer but I'll NEVER go back to plastic having used a tempered glass screen protector.

Seidio, Spigen and Mimi seem to be the top brands with different features (and advantages and disadvantages to each). Having owned a 2 spigen glas.tr and 1 seidio vitreo, I'm personally inclined to choose the vitreo (even though it is more expensive then the others).


As far as cases go, that's a personal decision also. Not all cases are created equally and a 5 dollar TPU case may protect just as well as a 100 dollar high-end case. At the end of the day spending at least a few bucks usually doesn't hurt to protect a device though. My advice on this is get one that provides a lip so if you have the phone face down it doesn't come in contact with the glass.

You have options like a basic TPU to Tech21 (think that's the name) to Spigen to UAG to Seidio Surface/Active, etc... Once again, preference.

I have a Seidio Surface and Spigen Neo Hybrid (like the feel of it but not the quality).

 

I got this screen protector, pack of 3 and lifetime warranty. Reviews are outstanding.

http://www.amazon.com/dp/B00BQ3FZ9G/ref=pe_385040_30332200_pe_309540_26725410_item

 

I have used this same company and case style for about a year now, and with a few different phones. Great customer service. Great product for a good price... $5.95

Amazon.com: Hyperion Shell Holster Combo Case for Samsung Galaxy S4 with Kick-Stand & Belt Clip (Compatible with international Samsung Galaxy S4 i9500 and ALL AT&T, Verizon, T-Mobile, US Cellular & Sprint Models) (Black): Cell Phones & Accessories