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Can you provide speedtest screenshots of both devices?

I'd be interested in seeing if there was any difference in LTE speed.
 
unfortunately the S4 no longer has service. I do remember doing a speediest at the exact same location in the past with my S4 and it was approximately 30mbps and I did it in the same location with my iPhone 6 and it said about 3 mbps. I could be remembering wrong though.
 
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