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Nextivity Solves In-Building 5G Connectivity Challenges with Release of CEL-FI GO G51 Self-Configuring 5G NR Repeater

Cellular coverage solution sets new benchmark in value as first reliable 5G NR repeater that does not require manual configuration

Today, Nextivity – the industry leader in intelligent cellular coverage solutions – released the CEL-FI GO G51 at Mobile World Congress (MWC) Barcelona. GO G51 brings the power of 5G networks indoors, solving in-building coverage challenges for the shorter range of mid-band 5G NR. The system can be deployed without rigorous testing or manual configuration, making it easier than ever before for businesses to ensure better voice quality, 5G data speeds, and fewer dropped calls in their buildings.

Mobile Network Operators (MNOs) have spent and will continue to spend billions of dollars investing in 5G. While the number of 5G towers and advertisements touting the power of 5G are on the rise, signal-blocking factors such as mountains, trees, tall buildings, and construction materials routinely obstruct mid-band 5G frequencies, resulting in poor in-building 5G coverage. CEL-FI GO G51 allows MNOs and businesses to fully leverage 5G infrastructure, enabling high-speed 5G connectivity indoors.

“Bringing to market the first self-configuring 5G NR repeater further demonstrates Nextivity’s commitment to only developing products that offer significant value over existing technologies. It has been our pleasure to hear over and over how quickly CEL-FI GO G51 can be set up and deliver a strong 5G signal,” said Nextivity CCO Stephen Kowal.

In addition to being compact and easy to use, CEL-FI GO G51 delivers industry-leading signal gain up to 100 dB to overcome mid-band 5G NR coverage challenges that no other solution can. The system is unconditionally network safe and offers the flexibility to support 2G/3G/4G and 5G cellular networks, making it ideal for small- to medium-sized buildings.

CEL-FI GO G51 features:

  • Mid-band (3.5 GHz) 5G NR coverage with 100 MHz channel bandwidth
  • Dual-band relay to overcome 2G/3G/4G coverage with mid-band 5G NR
  • Powered by the latest 4th generation Nextivity proprietary IntelliBoost chip, delivering industry-leading and unconditionally network safe performance
  • Compliant with the upcoming 3GPP Release 17 NR repeater standard
  • Ease of remote monitoring and management with Nextivity WAVE Portal and WAVE App

Nextivity is showcasing CEL-FI GO G51 at MWC ahead of the product’s general availability date of mid-March. GO G51 will be available to purchase in EMEA and APAC through authorized Nextivity distribution and system integrator partners. For more information, schedule an appointment with Nextivity at MWC (Hall 3, 3E21MR) or visit

About Nextivity
Nextivity, Inc. makes the world’s most intelligent, powerful, and easy-to-use cellular, public safety, and private networking coverage solutions that advance connectivity and allow people and businesses to achieve their most ambitious goals. Nextivity solutions include the popular CEL-FI product line, which are powered by the proprietary IntelliBoost chip. IntelliBoost uses digital signal-processing to enhance cellular performance in real-time and deliver unbeatable coverage for organizations, homes, and vehicles in over 100 countries. All Nextivity solutions are unconditionally network-safe and used by over 200 mobile network operators globally. Nextivity is headquartered in San Diego, CA, USA. Visit us at and follow us on LinkedIn.