What's the difference between these two

I want to make a purchase of one of these two battery cases and I'm stuck. From what I can tell is that the MJP Outdoors Edition has 150% more battery life than something, if it's the Pro then I'll buy this one but if it's the plus I couldn't care less because I need my 4s to be protected. I'm willing to shell out an extra $20 if it means I'll get more battery life outa my phone. Thanks to all that answer this problem, preferablly I'd like the answer to come sooner rather than later due to me needing it as soon as possible! Again, thanks to all! Here's the links to the two I'm considering, but, if anyone thinks that there's a better alternativem then by all means chime in!

Mophie juice pack "Outdoors Edition":
http://www.mophie.com/ProductDetails.asp?ProductCode=2175_JPPRO-IP4-ORG&CartID=3

Mophie juice pack Pro:
http://www.mophie.com/juice-pack-PRO-Rugged-case-for-iPhone-4-4S-p/2120_jppr-ip4-blk.htm

Can iTunes cards be used in the App Store?

I got an iPhone 4, and there are a few apps I want to buy, but I can only get them in the App Store! Will the App Store take iTunes cards?

Which one is better? Tablet or Laptop?

My sister might be getting an Iphone soon, I will become very jealous of her new phone, so I want to get a gift for christmas to make it equal. Should I get a tablet or a laptop? I also want to be able to play Minecraft since all my friends play it. Which one should I get? My price limit is $300.

IPhone 4 - iPhone 5 sim card change?

So my friend just purchased the iPhone 5 and doesn't like it. She wants to trade with me, and take my iPhone 4. The thing is, i would need a different sim card because the iPhone 5 has a new 'nano-sim' now and my old sim wouldn't fit. Is there a way i can turn my existing iPhone 4 sim card into an iPhone 5 compatible? Because i'm unsure if AT&T will allow me to 'trade' phones without upgrading my contract. Do you know where i could change it or if AT&T will not allow me to change? Any help, answers, or suggestions would be greatly appreciated.

Does the white otterbox commuter get dirty?

I have an iPhone 5 White and want to get a otterbox commuter. I think white will look nice but does the white plastic get dirty? The silicone i know is grey.

How long will USPS priority mail take to arrive?

I know it's approx. 2-3 days, but is it possible for it to come earlier? I ordered an iPhone and it was shipped 10/17 (no time was mentioned, but I'm pretty sure it was in the afternoon around 1 or 2).Is it possible for it to arrive tomorrow, Thursday? By the way it shipped from Tennessee and I live in Texas.

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I just got it a month ago so I still have the box and everything and its in perfect condition.

What does jailbreaking your iphone do? - 1

I hear people talking about jailbreaking all the time. What is jailbreaking? Is it dangrous or safe for your phone?

How long will it take for a package to ship from Hong Kong to Ohio?

I bought a lilo and stitch iphone case off of amazon 2&a half weeks ago and it's shipping from Hong Kong, i live in ohio. I got the shipping conformation the next day and shipping was free. How long do you think it'll take to get here?

Does verizon let people upgrade early?

I have a samsung fascinate, and i have gotten 2 replacements and its slowly going again. I don't want to keep replacing them and i'm eligible for a upgrade in feburary. I know it is in four months, but is there anyway they can let me upgrade now? I want to get the iphone, I'm in college now and I need a smart phone for college. I'm on my dads plan, I think it is a family plan and I'm the next eligible upgrade so taking someone elses is out of the question.