Amazon’s Leo Pro antenna weighs 5.2 pounds, and at a US Army demonstration in Maryland that Amazon announced on 13 October 2026 it fed a standard laptop more than 400 Mbps from newly deployed satellites passing overhead.

The event took place at Aberdeen Proving Ground, hosted by the Army’s Combat Capabilities Development Command (DEVCOM) C5ISR Center. Amazon’s statement said the centre had “recently” held the demonstration and gave no date for it. The company described the test as part of an ongoing partnership with the Army on connectivity for soldiers in the field.

More than 30 representatives from across the Army attended.

Amazon said the laptop sent and received data through a Leo Pro, which the company calls its primary customer antenna, as newly deployed Leo satellites passed overhead. The phased array antenna is rated for speeds up to 400 Mbps, and Amazon said peak download speeds during the test went past that figure.

A 5.2 pound antenna

The 5.2 pound weight comes from SDxCentral, which reported on the test on 15 October 2026. Amazon’s own statement gave no weight for the antenna. SDxCentral also says Leo Pro sits one rung below Amazon’s Ultra antenna in the company’s line, after correcting an earlier version that placed it third.

The C5ISR Center researches and tests technology to connect tactical leaders with soldiers on the ground, according to SDxCentral.

“Amazon has a long track record providing critical cloud and connectivity services to the U.S. Army, and this demonstration at Aberdeen Proving Ground is an important step toward an expanded partnership,” said Liz Martin, head of government for Amazon Leo, in the 13 October statement.

Amazon Leo is built around thousands of satellites in low Earth orbit joined by optical links. The satellites talk to a network of gateway stations, fibre and internet connection points on the ground. Amazon says the service is meant for customers and communities around the world, including large government customers operating in places without reliable connectivity.

The Aberdeen test used satellites that Amazon described as newly deployed.

What the Army tests next

Amazon and the Army plan to follow the Aberdeen demonstration with further tests. Those include connections at higher speeds, mobile scenarios and integration with existing Army tactical networks, Amazon said. The company’s stated aim is to move capabilities out of the lab and into the field.

SDxCentral says Amazon is also working with AT&T on a broadband offering based on satellites. It reports that Amazon plans more than 5,000 direct to device satellites for a commercial service due to launch in 2028.

SDxCentral puts Amazon’s constellation at around 400 deployed satellites, in line with the company’s own count.

Amazon says it has more than 1,000 satellites manufactured and nearly 400 in low Earth orbit.

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