So to start this geek out I am going to try to keep it short. Does the cellar service providers' band 3g 4glte...whatever make a difference in time (1/2second or more), uploading/downloading small amounts of data, say email size? I have to upgrade to a tablet/cell for work, and finding minimal lag is very important using a program called voxer.
I tried asking the company and they stopped replying to my questions so I guess they don't know 
Anyone care to speculate?
If I understand you right, you're looking for network "latency", i.e., the time it takes a single chunk of data to get from your phone to the destination. This is a completely different animal from the "megabits per second" that the networks (especially cable modems) crow about.
From a quick googling of "3g vs LTE latency", the answer is yes.
A quick googling of "3g latency" brought up this article, which I haven't read, but has nice info-graphics. I'm sure it means something,
IAACNBIANACNN (I am a computer nerd, but I am not a cellular network nerd)
From my experience lag can vary wildly from near-instantaneous to satellite-like mega-lag. From using SSH terminals over "2.5G" I've seen that the lag can be impressively low when it's working properly.
Interesting, so SSH terminal speed could be as much of a hindrance in transmission speed if not more than carriers network type. That is good to know, I have always had "dumb" phones so I haven't had to worry about that sort of thing.
But how should I keep SSH lag down? Does the hardware/software of the phone make a difference with this? Or is the problem more with the handshake connection and traffic from others using the system? Does location in relation to the cell towers make a difference? Anything else like signal boosters that mount on cars I should be looking at?
So my best bet for the time being is to find a 4G phone/tablet on AT&T or Verizon plan it seems. I haven't been able to find tests with small amounts of data only larger amounts like streaming Netflix movies.
Lag is pretty much all down to the telco's network and your connection quality...a signal booster (picocell or extended antenna) might help if you're in an area that doesn't have a great signal. It adds another hop so it will actually add a bit of lag...but it could make the connection more consistent if you lose signal. Much of what appears to be lag can be caused by dropped packets.
In reply to jere:
PM coming your way.
Thanks for all the help guys, your information lead me to more information and I think I've got what I need to know.
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