Re: Can this phone be taken to Straight Talk and still use Verizon Towers?
I've checked for a COMPREHENSIVE answer to the StraightTalk CDMA vs. GSM phones, and their current Samsung Galaxy SIII, S4 offerings vs. their BYOP plan for quite a while now. Your post was VERY COMPLETE and informative. I had attempted to help a friend get a Verizon Galaxy SIII (4G) working with StraightTalk earlier this year, and was told that the phone wasn't supported. I now understand WHY this was the case, as it makes complete sense that Verizon wouldn't want to congest their 4G towers with a lot of extra phones that are on the low-end of the cost spectrum re: monthly charges.
I currently have a StraightTalk-branded (a.k.a. TracFone) Samsung Galaxy SIII (3G). I am also currently checking on a new phone for my brother, and had suggested going with StraightTalk, and possibly one of the Samsung Galaxy S4 (4G) models for $499 (or possibly the S4 Mini for $349). However I was unable to determine from StraightTalk's website (or from Walmart where it's likely that I'd actually purchase the phone for $449 since ironically it's $50 cheaper than directly from StraightTalk) what carrier(s) were supported by these phones.
After reading your post, it's clear to me that these Samsung Galaxy S4 (4G LTE) phones are GSM-based and most-likely use AT&T as their carrier (or possibly T-Mobile). We live in a relatively-rural area, without a lot of support for AT&T phones. If we lived in a larger metropolitan area such as Minneapolis (which is 90 miles northwest) then the Samsung Galaxy S4 (4G LTE) would be an AWESOME choice!
So for now, I'll just recommend to my brother that he sticks with the StraightTalk-branded Samsung Galaxy SIII (3G) using Verizon's towers. This is my current setup, and has been working well. Seriously who REALLY NEEDS a 5" + screen for a "phone", plus a 1.2 GHz dual-core processor is still fast enough for my needs. I mean, I do have several laptops and tablets available. My biggest "upgrade" so far was to purchase one of the Anker 7200 mA batteries ($33 from Amazon) to increase my "unplugged" time from around 10-16 hours (depending on WiFi / GPS / signal strength, etc.) to around 67+ hours. Now instead of recharging the original 2100 mA battery DAILY, I only charge 2-3 times a week!
I generally don't "Reply" to posts, because they're generally not all that helpful. Your post was an exception - I even needed to create the user account, then click on the registration link, then go back to the webpage and login to reply. THANK YOU AGAIN !!! I GREATLY APPRECIATE THE INFO. THAT YOU PROVIDED !!!