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Illustration: Rebecca Zisser/Axios

If cities are only as "smart" as the data zipping between sensors and devices, the "smartest" places will be those equipped with the speediest broadband service to ferry the ever-expanding streams of data.

What's happening: All 4 national wireless companies have installed 5G service in parts of cities. T-Mobile, for example, released a 5G "boost" (if they have the Galaxy S10 5G phone) in parts of Atlanta, Cleveland, Dallas, Las Vegas, L.A. and New York on Friday.

But there are few 5G devices available, and coverage is extremely limited because the signals can't travel far. So T-Mobile, like other carriers, reverts back to its 4G LTE network in areas where 5G isn't available.

  • Plenty of smart city features, like parking spot sensors, can be built with older wireless technologies, too.

At least at first, it will be affluent people who'll be willing to buy new 5G-compatible phones and pay any additional charges. That means the well-off neighborhoods are likely to be first to get 5G, with those pockets of coverage slowly branching outward.

  • Experts worry there won't be equitable coverage in lower-income neighborhoods, or in spread-out residential areas that aren't near "anchors" like hospitals or office parks that will be early adopters of 5G.

The bottom line: Most metros are likely to have a handful of small "smart districts" far before they become "smart cities."

Go deeper:

Go deeper

Focus group: Former Trump voters say he should never hold office again

Illustration: Sarah Grillo/Axios

"Relief" is the top emotion some swing voters who used to support Donald Trump say they felt as they watched President Biden's swearing-in, followed by "hope."

Why it matters: For voters on the bubble between parties, this moment is less about excitement for Biden or liberal politics than exhaustion and disgust with Trump and a craving for national healing. Most said Trump should be prohibited from ever holding office again.

Updated 12 hours ago - Politics & Policy

Coronavirus dashboard

Illustration: Eniola Odetunde/Axios

  1. Health: Most vulnerable Americans aren't getting enough vaccine information — Fauci says Trump administration's lack of facts on COVID "very likely" cost lives.
  2. Politics: Biden unveils "wartime" COVID strategyBiden's COVID-19 bubble.
  3. Vaccine: Florida requiring proof of residency to get vaccine — CDC extends interval between vaccine doses for exceptional cases.
  4. World: Hong Kong to put tens of thousands on lockdown as cases surge.
  5. Sports: 2021 Tokyo Olympics hang in the balance.
  6. 🎧 Podcast: Carbon Health's CEO on unsticking the vaccine bottleneck.

Trump impeachment trial to start week of Feb. 8, Schumer says

Senate Majority Leader Chuck Schumer. Photo: The Washington Post via Getty

The Senate will begin former President Trump's impeachment trial the week of Feb. 8, Majority Leader Chuck Schumer announced Friday on the Senate floor.

The state of play: Schumer announced the schedule after reaching an agreement with Republicans. The House will transmit the article of impeachment against the former president late Monday.