Cel-Fi PRIME 3G/4G Signal Booster for Flats & Stores

SKU: Nextivity Cel-Fi PRIME

The Cel-Fi PRIME is the ideal solution to improve mobile signal coverage in smaller spaces of 1,200 ft² / 110m². The Cel-Fi PRIME offers a plug-and-play mobile signal solution and provides 80dB gain for 3G and 4G simultaneously.

Cel-Fi PRIME is the perfect mobile signal booster for flats, storefronts, kiosks, apartments, small offices, home offices or similar spaces.

Cel-Fi PRIME is only available on EE and Three.


  • 80 dB max signal gain covering an area 1,000 ft² / 100 m² per unit
  • Plug-n-Play - sets up in 5 minutes. No installation required.
  • Boosts both 3G and 4G signal coverage for voice and data
  • Only available for EE, Three
  • asily switch between boosting EE or Three signal using the WAVE App
  • Can be used without a licence, lawful under Ofcom and Comreg regulations


Cel-Fi PRIME improves the signal between a mobile phone and a mobile network tower, allowing you to have clear voice conversations and a stable data connection when you are indoors. The Cel-Fi PRIME collects the best mobile signal, amplifies the signal, and rebroadcasts it inside the flat, apartment or storefront.

The system needs to detect a minimum 3G signal inside of the building to operate.


  • 1 x Cel-Fi PRIME signal booster
  • 1 x Cel-Fi Coverage Unit
  • 1 x Power cable
  • 1 x Cel-Fi Mounting Equipment

The Cel-Fi PRIME is quick to install and can be optimised and monitored by the Cel-Fi WAVE Platform.

*Images shown are for illustration purpose only, actual product may vary.

Cel-Fi products are licence-exempt and fully comply with Ofcom’s UK Interface requirement 2102 (IR2102) (UK) and ComReg S.I.No.283 of 2018 (Ireland).

£580.00 (inc. VAT)

In Stock

Available: 3

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

Cel-Fi PRIME is the perfect mobile signal booster for flats, storefronts, kiosks, apartments, offices or similar spaces. 10x stronger than traditional analogue boosters, it strengthens 3G and 4G signal coverage for voice and data. With 80dB of gain, Cel-Fi PRIME will reduce the mobile device’s power requirements and extend its battery life. It offers plug-and-play mobile signal coverage, enabling clear and reliable connections within a coverage area of up to 100m2 (approximately 1,000 ft2). In an open space, the coverage bubble can be much larger.

The Cel-Fi commitment is to protect the operator's network, deliver the best in-building mobile performance, and be the easiest solution to install.

  • 5-minute plug-and-play set-up.
  • 80 dB max signal gain covering an area 1,200 ft² / 110 m² per unit
  • Available for EE, Three, and all hosted Mobile Virtual Network Operators
  • Can easily switch between mobile networks via the Cel-Fi WAVE app
  • Smart Signal Booster with IntelliBoost© Chipset - Unconditionally Network Safe
  • Licence exempt and fully meets Ofcom requirements SI 2018/399 (UK) and ComReg S.I.No.283 of 2018 (Ireland)


Attach to wall with mount (included) and plug in.
  1. Download the WAVE app.
  2. Determine where coverage is needed and locate an open power outlet.
  3. Connect units with included cable before plugging into the wall.
  4. Once the light on the front of the Smart Signal Booster is solid BLUE, use WAVE to check boost number.
  5. Mount the system using the removable tape.

  6. Technical specification
    • Simultaneously supports multiple channels with bandwidths from 5 to 20 MHz
    • Total system relay bandwidth of 40 MHz
    • Support for E-UTRA bands 1 (2100 MHz) & 3 (1800 MHz)
    • Peaceful coexistence with adjacent 80211 (24 GHz & 5 GHz), femtocell, and mobile devices
    • Auto-configured & self-contained with integrated antennas, no maintenance
    • Dynamic gain control always ensures maximum gain — best coverage — in ever changing RF environments, without user intervention
    • Compatible with: EE, Three and all hosted Networks (3G and 4G). Only works for one network at a time per unit and can be changed afterwards using the WAVE App available to download on the App Store and Google Play
    • Mounting system provided with multiple options for flexible placement

    Network safe
    Self-organising edge intelligence ensures that Cel-Fi PRIME do not interfere with other indoor wireless products such as Wi-Fi routers, Small Cells, and Distributed Antenna Systems (DAS).
    High speed Automatic Gain Control ensures that Cel-Fi PRIME are unconditionally network safe and enables more simultaneous calls and higher data speeds.

    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. 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.
    *This unit supports multiple networks however only one network can be used at a time. The WAVE App can be used to switch between mobile networks.