T-Mobile has the fastest download speeds in the U.S.
Network availability is an important category since subscribing to a great network doesn’t matter if you can’t access it. Verizon customers were able to connect to Big Red’s cellular network a leading 94.8% of the time. T-Mobile was next at 94.2% followed by AT&T and Sprint at 89.6% and 89.5%, respectively. Network responsiveness is also key to a great user experience on a wireless provider’s network. Also known as latency, the lower the number, the faster each network responded to its users. AT&T and T-Mobile tied for the crown here. The former had an average reading of 52.5ms and T-Mobile was just .1ms slower at 52.6ms. Both topped Verizon (56.8ms) and Sprint (59.8ms).

Verizon subscribers have the best shot at connecting to their wireless provider’s network
Verizon did well in U.S. metro markets with an average 42.4Mbps download speed in New York City
Video experience measures loading times and interruptions to help OpenSignal calculate a score. Verizon had the highest tally in this category at 56.1 followed by the 51.7 score awarded to T-Mobile. Sprint’s 47.5 score placed it third with AT&T’s 46.5 rating placing it last.
“AT&T’s speed renaissance is likely a result of its upgrades to current 4G infrastructure, which AT&T has chosen to brand as 5G E, adding LTE-Advanced technologies like carrier aggregation, more sophisticated modulation schemes and supplemental unlicensed spectrum. Although 5G E is more of a marketing term than a true 5G technology, the 4G enhancements it represents have definitely had a real impact on the consumer mobile experience of AT&T’s users, as a recent OpenSignal analysis has shown.”-OpenSignal

T-Mobile also has the fastest upload dataspeeds in the U.S.
Looking at the regional results, Verizon had the fastest average download speed found in any U.S. metropolitan market, 42.4Mbps in New York City. Verizon also averaged 10Mbps upload speeds in eight major cities including New York and Chicago. In the category of network responsiveness, OpenSignal noted that AT&T’s LTE-Advanced upgrades (which it calls 5G Evolution) helped the wireless provider offer faster latency speeds as low as 40ms in some markets like Chicago, Dallas, Houston, and San Francisco.

Verizon provides the best video experience to its customers

AT&T and T-Mobile had the most responsive networks in the states
Alan Friedman