Upgraded from the Note4. Coworker still has Note 4. We placed phones side by side on his bench here at work. He would be stuck on 3g while my Note 5 would still be on 4g. We cycled airplane mode and he would have 4g for about 2 seconds then back to 3g. I have yet to see mine go on 3g here at work while he is constantly on it. Loving the phone so far.