said by Reyr:
You know I've tried the speedtest.net app on my GS3 and it is not accurate at all. it underscores speeds. If you direct your mobile browser to speedtest.net and run your test from there it is more accurate.
Actually the best is to go to speedtest.verizon.net.
It is a server on the Verizon network. And from what I have been told, the only test that Verizon will accept results from when complaining about poor speeds.