Broadband  |  2025-03-20

Sonim Introduces First Responder Ready 5G Rugged Flip Phone

Source: The Critical Communications Review | Gert Jan Wolf editor

Designed for the noisiest environments, the XP3plus 5G delivers superior audio with a 100dB+ ultra-loud speaker5 and includes a dual microphone with noise and echo cancellation.

Sonim Technologies today announced the launch and availability of the XP3plus 5G, its newest ultra-rugged flip phone designed for first responders, government, and enterprise users. Available now at T-Mobile and certified for use with T-Priority, featuring the first 5G network slice for first responders in the USA.

Building on the success of its 4G predecessor, the award-winning XP3plus, this 5G model delivers upgraded performance and durability. Key enhancements include a Qualcomm SM4450 5G chipset for fast connectivity, a larger display, and a larger 3000mAh removable battery, offering up to 30 hours of talk time1. With 4GB DDR4 RAM, 32GB eMMC storage, and expandable memory of up to 512GB via MicroSD2, the device is engineered for reliable performance and use in demanding environments.
The phone comesin two configurations to meet varied needs—with or without a camera. The non-camera model addresses security requirements in sensitive environments, while the camera-enabled version is ideal for documenting and troubleshooting fieldwork.

“The XP3plus 5G has been purpose-built to meet the evolving needs for mission-critical professionals who require security, dependability, and simplicity in their communication tools,” said Chuck Becher, Chief Commercial Officer at Sonim Technologies. “Rugged flip phones continue to meet the growing demand for distraction-free productivity, especially among government, public safety, and industrial users. With certification for T-Priority, this device can also be used by first responders to help them remain connected when they need it most.”

Like all Sonim solutions for critical communication, the device is designed to reduce total cost of ownership, backed by Sonim’s industry-leading 3-year comprehensive warranty, reliable and trusted support with SonimCare, and SonimWare—Sonim’s suite of software tools designed to boost productivity and streamline device management. A robust ecosystem of accessories, including vehicle mounts, multi-bay chargers, and rugged headsets, provides added functionality and seamless integration into diverse workflows.


This compact flip phone meets Sonim's Rugged Performance Standards (RPS). Based on over a decade of feedback from customer usage in the world's most extreme environments, Sonim Rugged Performance Standards consist of 12 benchmarks of endurance and durability that exceed IP68 and military durability standards (MIL-STD-810H)4. The XP3plus 5G is submersion-proof up to 5 feet (1.5 meters) in fresh water for 30 minutes, resistant to dust and dirt, and capable of operating in temperatures from -4°F to 131°F. It is also certified safe for explosive environments, meeting Class I, II, and III, Div 2 standards.


Sonim is renowned for superior audio quality and the XP3plus 5G is no exception. Designed for the noisiest environments, the XP3plus 5G delivers superior audio with a 100dB+ ultra-loud speaker5 and includes a dual microphone with noise and echo cancellation, ensuring crystal-clear communication at construction sites, manufacturing floors, and field operations. Tactile, glove-friendly Push-to-Talk (PTT) and SOS buttons, combined with the compact flip design, make the phone highly functional in virtually any use case.