From a scruffy but feisty newcomer, T-Mobile has become a 5G network juggernaut in the US thanks to its FCC-approved acquisition of Sprint not long ago that allowed it to build the so-called "layer cake" of a robust 5G coverage from the low to the mid-bands.T-Mobile is consistently scoring the fastest 5G network download speed awards and the most robust 5G coverage for a few quarters in a row now, and it also offers the most competitive family plan prices. It's also an OG GSM carrier like AT&T, so phone choices and compatibility are better than on Verizon.Despite all the marketing fluff, however, and its underdog status that made it a favorite among users, T-Mobile still has a way to go in coverage outside of the big city areas and frequented highways compared to AT&T or, even worse, to Verizon's coverage.T-Mobile unlimited 5G plan price comparisonBest cheap 5G plan on T-Mobile: Essentials unlimited priced at $105/month for four lines with throttling above 50GBBest premium T-Mobile 5G plan: T-Mobile Go5G Next is upgrade-ready every year and offers unlimited 5G data at full speedT-Mobile EssentialsT-Mobile Go5GT-Mobile Go5G Plus1 line$60$75$902 lines$90$130$1503 lines$90 (3rd line free, limited time offer)$130 (3rd line free)$150 (3rd line free)4 lines$105$155$1855 lines$120$180$220Throttling>50GB>100 GBnoFreebiesT-Mobile TuesdaysNo annual contract req'dNetflix on Us (1-screen)T-Mobile Tuesdays4 full-flight streaming sessions a year, plus, unlimited in-flight texting & 1 hour of streaming10GB data in Mexico & CanadaNetflix on Us (2-screen within a household)T-Mobile TuesdaysUnlimited in-flight Wi-fiApple TV+15GB data in Mexico & CanadaVideo streamingSD (480p)up to HD (720p) video streamingUHD (4K)Hotspot per line3G speeds15GB50GB*All prices are after Auto Pay and w/ paperless billing, include unlimited talk&text in the USBest prepaid phone carriers in the USVisible and Straight Talk - low 5G Unlimited plan prices, widest 4G LTE coverage using Verizon's network.Cricket Wireless: AT&T network power, unlimited 5G plan at just $25 a month for a family of four.Ultra Mobile and Metro by T-Mobile: $100/month of 5G unlimited data for four lines, 15GB hotspot.Ultra Mobile plan featuresIf you’re looking for a no-frills phone plan on the , look no further than Ultra Mobile. Why pay more with Verizon or AT&T when you can have premium wireless coverage at a fraction of the cost? Every plan comes with unlimited nationwide talk & text and unlimited global text & talk to 80+ international destinations.While Ultra is already affordable, we have an exclusive PhoneArena reader code that will knock Ultra Mobile’s 2GB plan to just $10/month when you purchase a 12-month plan – that’s $120 for an entire year of premium wireless (normally $168 for 12-months). Simply use code at checkout to redeem the offer! , Most cell phone companies push their high-priced unlimited data plans, but most people don’t use enough data to necessitate the extra cost. A few years ago, the average American used 5.1GB of mobile data per month, but that has increased with more and more streaming and video content coming online. Some use much more, but most people only , Recent studies indicate that more people are turning to cable companies for their phone coverage. And looking at Comcast's Xfinity brand, it's easy to see the appeal of Xfinity Mobile. Unlimited .