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AT&T's first 5G mobile device is a hotspot allowing other devices to access the faster network. Photo: AT&T

The 5G era has arrived. AT&T is launching 5G mobile service in a dozen U.S. cities beginning this Friday, becoming the first carrier to do so.

Why it matters: The move allows AT&T to meet its promise to launch service in 2018 and will help usher in a new era of cellular technology promising faster speeds. Eventually, other advantages 5G offers, like minimal delay, will take cellular technology into new markets, including remote control of medical and industrial gear.

Yes, but: The service is only available via a mobile hotspot, with 5G-capable phones not due until next year.

Details: The faster mobile service will initially be available in Atlanta; Charlotte, N.C.; Dallas; Houston; Indianapolis, Jacksonville, Fla.; Louisville, Ky.; Oklahoma City; New Orleans; Raleigh, N.C.; San Antonio; and Waco, Texas. In the first half of 2020, AT&T said it plans to add service in parts of Las Vegas, Los Angeles, Nashville, Orlando, San Diego, San Francisco and San Jose, Calif.

  • AT&T plans to make the mobile hotspot and data free for 90 days to "select businesses and consumers." Starting next year, the hotspot will cost a hefty $499 upfront and data service will cost $70 per month for 15GB of data.

“This is the first taste of the mobile 5G era,” AT&T chief technology officer Andre Fuetsch said in a statement. “Being first, you can expect us to evolve very quickly. It’s early on the 5G journey and we’re ready to learn fast and continually iterate in the months ahead.”

Big picture: All the major carriers plan 5G phone service in selected cities starting next year, though the initial markets will vary. Verizon also used 5G technology earlier this year to offer an alternative to home broadband.

Go Deeper: Special report: The next tech wave rides on 5G

Go deeper

Updated 41 mins ago - Sports

The Olympic events to watch today

U.S. diver Krysten Palmer. Photo: Clive Rose/Getty Images

5 events to watch today...
  • 🏃 Track & Field: Watch the men’s 100m final at 8:50 a.m. ET on nbcolympics.com
  • 🏐 Men’s volleyball: USA plays Argentina in the group stage at 8:45 a.m. on NBC.
  • 🤸 Gymnastics event finals: Watch the replay of the men's floor exercise and pommel horse, as well as the women's vault and uneven bars starting at 9:30 p.m. on NBC.
  • 🤽Men's water polo: USA takes on Greece in group play at 10:30 p.m. ET on CNBC.
  • 🏊Women's springboard final: Watch the replay tonight on NBC.

In photos: Tokyo Olympics day 9 highlights

Team USA's Ryan Murphy, Zach Apple, Michael Andrew and Caeleb Dressel celebrate winning gold in the final of the men's 4x100m medley relay swimming event during the Tokyo 2020 Olympic Games at the Tokyo Aquatics Centre in Tokyo on Aug. 1. Photo: Odd Andersen/AFP via Getty Images

Day nine of the Tokyo Olympic Games Sunday saw the final day of swimming competition end with a historic win for Team USA.

The big picture: The U.S. men's 4x100-meter medley relay team set a new record world as they won the final and Caeleb Dressel earned a fifth gold — becoming the fifth American to do so. Team USA's Bobby Finke won the 1,500-meter freestyle.

Trump PACs raise over $82M for first half of 2021

Former President Trump during the Conservative Political Action Conference in Dallas, Texas, on July 11. Photo: Brandon Bell/Getty Images

Former President Trump's political action committees (PACs) raised more than $82 million in the first half of 2021, per Federal Election Commission filings published on Saturday.

Why it matters: It's a significant amount for a former president who's been banned from major social media platforms. It demonstrates his ability to raise huge sums of money should he choose to run for the presidency for a third time.