Nextivity Cel-Fi PRO 3G/4G Mobile Signal Booster

SKU: Nextivity Cel-Fi PRO
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Cel-Fi PRO improves 3G, 4G and LTE cellular service by eliminating dead zones and dropped calls. With 100dB of gain, Cel-Fi PRO will not only improve cellular service across four (4) concurrent bands, it will also reduce your cell phone’s power requirements and extend its battery life. Cel-Fi PRO systems feature an LCD color interface, are fully self-contained and self-configuring, and require no external antennas or wiring. Simply plug it in to boost indoor cellular coverage.

  • Provides 100dB of signal gain, 1,000 times stronger than traditional analogue boosters, which provide 60-70 dB of gain
  • Creates a bubble of approximately 40 metres of coverage or 13,000 sq. ft. / 1,200 m2, equivalent to 5-10 times larger coverage than most boosters
  • Plug-n-Play - Sets up in 5 minutes. No installation required.
  • Boosts both 3G and 4G signal coverage for O2, EE, Three or Vodafone, and all hosted MVNO under the Network of your choice
  • Enhances reception and signal strength which result in reduced battery requirements on mobile phones and extended battery life.
  • Advanced technology uses built-in algorithms to boost network coverage
  • Reduces dropped calls and improves voice clarity
  • No internet broadband required
  • Cel-Fi PRO is CE and FCC approved and Ofcom licence exempt.
  • Easily switch between boosting O2, EE, Three or Vodafone signal using the WAVE App*

Cel-Fi PRO is CE and FCC approved. Cel-Fi Smart Signal Boosters are licence exempt under UK law and fully meet the requirements of Ofcom SI 2018/399

You must have at least one bar of signal somewhere in the building.

£849.99 (inc. VAT)

In Stock

Available: 28





This Cel-Fi Smart Signal Booster is licence exempt under UK law and fully meets the requirements of Ofcom SI 2018/399.



Cel-Fi PRO is a simple mobile phone signal booster that strengthens your 3G or 4G signal coverage. Perfect for the home or office, this compact technology allows you to boost your 3G voice and data as well as 4G data coverage inside, allowing support for up to 20 devices simultaneously.



Cel-Fi PRO improves 3G, 4G and LTE cellular service by eliminating dead zones and dropped calls. With 100dB of gain, Cel-Fi PRO will not only improve cellular service across four (4) concurrent bands (1/3/8/20), it will also reduce your cell phone’s power requirements and extend its battery life.



Cel-Fi PRO systems feature an LCD colour interface, are fully self-contained and self-configuring, and require no external antennas or wiring. Simply plug it in to boost indoor cellular coverage. (Please remember, you must have at least one bar of signal somewhere in the building.)

  • Provides 100dB of signal gain, 1,000 times stronger than traditional analogue boosters, which provide 60-70 dB of gain
  • Creates a bubble of approximately 40 metres of coverage or 13,000 sq. ft. / 1,200 m2, equivalent to 5-10 times larger coverage than most boosters
  • Boosts both 3G and 4G signal coverage for O2, EE, Three or Vodafone, and all hosted MVNO under the Network of your choice
  • Reduces dropped calls and improves voice clarity
  • No internet broadband required


Technical Specification:



  • Up to four (4) cellular bands supported at the same time (bands 1/3/8/20).
  • Cel-Fi PRO simultaneously supports multiple carriers with bandwidths anywhere from 5 to 20 MHz with a total system relay bandwidth of 35 MHz**.
  • Support for 3GPP Rel. 10 features.
  • Support for E-UTRA bands 1, 2, 3, 4, 5, 8, 12, 20, and 28
  • Antenna technology
The Cel-Fi PRO has four internal antennas built in to the units, and an external antenna port that allows for connection to an aerial (additional aerial cable not included). The multi-directional technology seeks to find the best signal and adjust to it accordingly.



Activate, Optimize, and Manage Cel-Fi products with the Cel-Fi Wave App



Cel-Fi WAVE is the software application used for registering, setting-up, remotely monitoring, and updating Cel-Fi products. If your circumstances do change and you decide to switch your Mobile Network Operator, the app’s functionality enables you to futureproof your investment by allowing you to easily swap between Operators as and when required. It provides a glance-able view to the state of your Cel-Fi environment and includes:

  • A dashboard overview of all your systems
  • Real-time data and performance metrics
  • Easy activation and registration
  • Operator changeover if you switch your network
  • Software update management
  • Users and group management


The Cel-Fi Wave App is available for iOS, Android, PC and Mac devices.



* Supports and boosts Vodafone 3G & 4G in general, but does not support Band 7 (2600MHz), used by Vodafone for 4G only in specific locations. Band 7 is not licence exempt. Please contact us if you require further details.

** This unit supports multiple carriers however only one network can be used at a time. The Wave App can be used to switch between network operators, please see above for further information.