Cel-Fi GO X Smart Signal Booster Review

Are you experiencing cell phone reception issues in your home or office? If so, then you need a powerful cell phone signal booster.

In places with poor reception, a signal booster can prevent missed calls, dropped calls, and improve internet speeds significantly.

However, you might not know the cell phone signal booster to buy if you are doing it for the first time. In this Cel-Fi GO X Smart Signal Booster Review, we introduce you to one of the most robust devices in this category.

What Is Cel-Fi?

Cel-Fi is a famous brand of cell phone signal boosters by Nextivity Inc. Under the Cel-Fi stable, the company has developed some of the best cell phone signal boosters around.

The award-winning company has designed and produced the industry-leading Intellboost® chipset with the highest possible signal gain. That's why Cel-Fi cell phone signal boosters are among the fastest ever built anywhere in the world.

A good example is the Cel-Fi X Smart Signal Booster with a 100dB gain, the industry's highest.

The company has bagged the IT World Awards (2020), IoT Evolution Product of the Year (2020), and Best Commercial Integrator (2019).

Other awards include The Golden Bridge Awards (2019), Communications Solutions Product of The Year (2020), and Stevie Awards People's Choice (2020).

Reasons You Need a Cell Phone Signal Booster

People experience cell phone signal issues regardless of where they live. You could be in a wooded city suburb or a far-flung rural area and still have the same reception issues.

Even though you might be ignorant of it, the following factors cause poor cell phone reception.

A Large Distance from The Cell Tower

One of the major causes of poor cell phone reception is being far away from a cell phone tower. That's because the cell signal tends to weaken as you move farther away from the cell tower.

Affected individuals may include those living in rural areas and city suburbs. In that case, you need a device that can pick the weak signal and magnify it multiple times to improve reception.

Interference from Objects Outside the Building

The signal's path is linear from the cell tower to the mobile device, and any obstacle could obstruct it. In that case, the barriers include hills, tall buildings, trees, rain, snowfall, mountains, etc.

When the signal radio waves eventually hit the mobile device, they aren't strong enough to promote a strong reception.

However, it can amplify the weak cell phone signal and get more explicit calls, faster text delivery, and speedy internet.

In-Building Interference

Sometimes, a strong signal outside the building could diminish because of obstacles existing on the inside. The culprits include metal barriers, glass, thick concrete walls, and electronic clutter.

Also, the number of users in the building could be too many, compromising the existing signal. As a result, some rooms and floors in the building may get a low cell signal all the time.

It would help if you had a powerful cell phone signal booster like the Cel-Fi GO X to amplify it. With that, you can be sure that all building parts are getting a reliable reception, promoting business requirements.

Cel-Fi GO X Smart Signal Booster Review

Notable industry observers recommend the Cel-Fi GO X Smart Signal Booster for home and office use. It can boost a cell phone signal from a paltry two bars to serve multiple users in domestic and commercial settings.

Since it is a single-carrier system, the Cel-Fi GO X works with one cell phone signal carrier at a time. It has a 100dB gain compared to most other devices with a maximum of 70dB gain.

With the extra power, the device provides additional coverage even from the weakest cell phone signal.

The Package Contains

  • Cel-Fi GO Amplifier w/Power Supply
  • AC Power Supply
  • Yagi Directional Outside Antenna
  • Panel Outside Antenna
  • Omni-Directional Outside Antenna
  • High-Gain LPDA Outside Antenna
  • J Pole Mount
  • Panel Inside Antenna Option
  • Dome Inside Antenna Option
  • Low-Profile Dome Antenna Option
  • 30-Feet of 400 Series Coaxial Cable for Each Antenna Run
  • Adapter Cable w/N-Female and SMA-Male connectors
  • Lightning Surge Protector
  • Adapter Cable w/N-Male and SMA-Male Connectors
  • Two-Way Splitter (for two inside antennas)
  • Three-Way Splitter (for three inside antennas)
  • Four-Way Splitter (for four inside antennas)
  • Quick Start Guide
  • GO X Datasheet

How the Cel-Fi GO X Works

Outside the building, the Cel-Fi GO X has a directional antenna mounted to a two-inch pole. That's why the package includes a 20-inch-tall aluminum J-pole.

After picking up the existing signal, the antenna transmits it to the amplifier. In turn, the amplifier boosts the signal and sends it to at least one inside antenna, which broadcasts it to available mobile devices.

On the contrary, mobile devices send a signal to the antenna inside the house.

The antenna then transmits it to the amplifier, which boosts the signal and sends it to the outdoor antenna. From here, the amplified signal moves back to the nearest cell phone tower.


It is not for nothing that the Cel-Fi GO X is the most powerful cell phone signal booster.

The device has excellent features that enable it to have better voice quality, fewer dropped calls, and fast text delivery.

It also has faster internet speeds and longer battery life, given it doesn't have to work hard for a signal. Here is an overview of the impressive features defining this particular device:

Different Antenna Types

The device comes with two antenna types – the single-dome Yagi and the panel antennas. For outdoor use, the package includes Yagi directional and panel directional antennas.

Their "directional" nature requires pointing towards the nearest cell tower to receive a signal. While the Yagi antenna has at least a 10dB gain, the panel antenna starts at a 6dB gain.

You may also opt for the Yagi Omni-directional with a 4dB gain. If you want extra power, then the high-gain LPDA antenna with at least 12dB will do the trick.

Antennas inside the building include the standards dome antenna with at least 2dB and the ultra-thin dome antenna with 4dB.

While the ultra-thin-dome antenna is more powerful than the one with a standard dome, it doesn't beat the panel antenna. The latter has a 7dB gain, making it great for the unreached parts of the building.

100dB Gain

The single-carrier Cel-Fi GO X Smart Signal Booster has a 100dB maximum gain, making it the most powerful. Unlike other devices, which amplify multiple cell phone carriers, this particular device takes one at a time.

In the process, it provides 40dB more than most standard machines. The higher the gain, the better the cell phone reception and the faster the internet.

Larger Coverage Area

Related to this device's high gain is the extensive coverage area it provides. With one to two outside signal strength bars, a single internal antenna will cover up to 3,000 square feet.

As the external signal improves, the coverage increases to 4,000 square feet with a single inside antenna. As you increase the number of inside antennas (maximum four), the coverage area increases to a full 15,000 square feet.

Supported Cell Phone Networks

The Cel-Fi GO X works with the Verizon, AT&T, and T-Mobile networks for the perfect coverage at home and the office.

On these networks, it boosts 3G, 4G, and 4G LTE networks in the 700, 800, 1,900, and 1,700/2,100 MHz ranges. 

Because of supports only three cell phone networks, the device may not work outside the United States.

Cel-Fi Wave App

The most powerful cell phone signal booster is incidentally also the smartest. It comes with the Cel-Fi WAVE app for Android and iOS devices.

You can use it to enroll the signal booster to the carrier's network, check the system, and troubleshoot it. The app's conveniences include changing between the modes – mobile (65dB) and stationary (100dB).

You can also select a cell phone signal carrier on your phone screen and choose the optimum positioning for the outdoor antenna.

Easy Installation

Even though it is the most powerful cell phone signal booster around, the Cel-Fi GO X is easy to install. It comes with a simple instructional manual to help you put everything together.

Besides, the kit includes everything you need to install the device and make it fully operational. It even has extra components like the antenna mount and lightning surge protector to conveniently serve you.


  • The most powerful cell phone signal simplifier
  • Best for home or office use
  • Provides a sizeable indoor coverage area
  • It has a convenient Cel-Fi WAVE app
  • Expandable with several antennas


  • It doesn't support 2G networks
  • Not 5G-ready

Cel-Fi GO X Smart Signal Booster Review-Bottom Line

It is insane to consider buying any other cell phone signal booster other than the most powerful one. The Cel-Fi GO X has a 100dB gain, 40dB more than the next device.

It is excellent for use at home and in large office buildings with a weak cell phone reception. Given that it has the Cel-Fi WAVE app, the device is very convenient to use and customize.

It is the best to buy for people experiencing poor reception in large buildings such as office complexes.

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