4K Smart Link


The 4K Smart Link cell phone booster improves 3G & 4G LTE and 5G by amplifying existing outside signals. It enhanced cellular connectivity for small homes and offices with very weak signal reception.

Networks : Band 12, Band 13, Band 5, Band 25/2, Band 4

Coverage : 1,000 - 4,000 Sq. Feet

Max.Gain : 60 dB

  • 4G coverage for 2-3 rooms
  • Better talk, text & stream guaranteed
  • Compatible with multiple users and devices
  • Works with all US and Canadian carriers
  • Complete kit: all parts included
  • Simpler Install and Maintenance with LCD display & HiBoost App


30 Days Price Match Guarantee 

HiBoost guarantees that we will refund you the difference if you find a lower price from us within 30 days of your purchase.

We will refund you the difference if you find a lower price.

What Our Customers Have to Say

Max.Gain : 60 dB

1 - 4000 Sq. Ft

Clearer Calls

Faster Data

All Carriers

5G Compatible

Boost your bars

HiBoost 4K Smart Link Cell Phone Signal Booster captures the strongest outside signal from your provider’s cell tower with a powerful antenna system. With up to 60 dB gain of amplification, the amplifier boosts the received signal from the antenna and enhances 3G & 4G LTE cell service for all indoor wireless devices, on all US carriers networks, including AT&T, T-mobile, Verizon, US Cellular, Straight Talk, C-Spire, MetroPCS, Tracfone, Cricket, Rogers, and more.

How HiBoost Booster Works?

Step 1: The outdoor antenna picks up the signal from the nearest cell tower and sends it to the booster. 

Step 2: The booster amplifies the signal and the indoor panel antenna rebroadcasts the enhanced signal throughout the desired area.

No More Dropped Calls

No more loading screen with HiBoost cellular amplifier

No More Loarding Screen


No More Slow Texts

How to Install the Signal Booster?

Install the Outside Antenna

HiBoost App can locate the best outdoor signal from nearby cell tower which will reduce the inter-cell interference and get gain 9dBi.​

Through-Window Cable

To avoid punching holes, a through-window cable is provided to protect the window or wall. And the 3M waterproof tape is needed on the junction.

Install the amplifier

There is no need to install indoor antenna with its built-in antenna design. Just select the suitable room to get the most gains for the booster.

Waterproof Tape Protection

Waterproof Tape Protection

Each metal connector needs such a 3M waterproof tape to avoid getting rusty and makes the connector lives longer.


Eliminate Dropped Calls

If you’re struggling with dropped calls, buffering screens, unsent texts, and emails, the HiBoost 4K Smart Link is your answer. The signal amplifier kit is designed to enhance cellular connectivity in indoor bad reception areas up to 4,000 sq ft. The powerful system boosts your 3G and 4G LTE signal for crystal calls and faster data transmission.

It’s boosted our signal all through the house. We live in a rural area where service is something you have to search for about 80% of the time. With this booster, I can have a phone conversation without having to worry about switching hands, walking into the other room, or not having my pinky toe held in the right position(ha ha). Works well for AT&T and Verizon cell phone service, but haven’t had a chance to test any other carriers.
-Steven Henne
Verified Reviewer

More Reliable Service

4K Smart Link constantly raises your signal bars! Wherever you live, urban, suburban or rural areas, whatever phones and service providers you’re using, 4K Smart Link has you covered. It works with all kinds of smartphones, hotspots, tablets, notebooks on all US as well as Canadian providers. 

The system took me about 5 minutes to connect to the antenna pole, two minutes to align, and another 5 to cable and start using. Could not have been easier to install. I set one hot spot and two cell phones on my table at my cabin. Both phones had one bar and hot spot was flashing orange, Within two minutes of applying power to the amplifier the phones both had three bars and the hot spot went green. I am about 4 miles from my cell tower but have internet now using a simple hot spot. More than worth it.
Verified Reviewer
booster benefit


While the amplifier system eliminates your dropped calls and loading screens, it can also do more! It boosts your business productivity at work and lets you stay connected with those who matter. Your entertainment never stops with loading screens! It also provides greater peace of mind in any emergencies with constant and reliable service.

I was Leary at first whether it was going to work because the best I could get was -15 dbm and it said I need to be under -12 dbm. Surprisingly the next Monday customer support called me out of the blue and asked me how I liked the product. I told her my situation and she give me several different options to try. After messing with it for about 30 minutes I was down to -2 dBm. I still have some more playing around with it to do before I permanently install it, but A+ to Hi Boost on customer support.
Verified Reviewer

HiBoost SignalSupervisor APP

find outdoor signal

Help Locate the Best Outdoor Signal

Find out nearby cell tower and get the strongest signal by adjusting the direction of the outdoor antenna and watching the signal gauge of the Hiboost signal APP.

hiboost app

Real-Time Signal Monitoring

You can remotely monitor the data performance of your Hiboost device through the APP, including the signal gain, working status, etc.


It works for Band 12-17/Band 13/ Band 5/ Band 25-2/ Band 4.

In addition to different amplification, appearances, and prices, the indoor antenna of the Plus is built in the amplifier. You do not need to run extra indoor cable for the indoor antenna like a Smart Link booster with a panel indoor antenna. Besides the Smart Link is featured with a metal case while 4K Plus comes with an ABS case.

It’s suitable for all the U.S carriers, including AT&T, Sprint, Verizon, US cellular, and T Mobile.

Just step outside and make sure you have at least one bar on your phone.

  • For a small home/office size (1,000 to 4,000 sq ft).
  • Good for: 2 rooms of homes, offices and cabins.
  • Not recommended for: needing whole building coverage above 4K sq ft
  • Effective coverage area depends on the quality of outside signal strength

    4K Smart Link Coverage

It’s a complete kit that comes with everything you need for the installation.

HiBoost requires more than 1 bar of available outdoor signal. It’s recommended to test your outdoor signal strength before purchase.

If you decide to return your Hiboost cell phone booster kit within 30 days, please email at support@hiboost.com or call us at 1-972-870-5666 and we’d be happy to help assist you with the the return and refund proces. Please kindly note that we only accept the complete kit that is originally sent.


UL Frequency Range

698-716 / 776-787 / 824-849 / 1850-1915 / 1710-1755

DL Frequency Range

728-746 / 746-757 / 869-894 / 1930-1995 / 2110-2155

Supported Standards

CDMA, WCDMA, GSM, EDGE, HSPA+, EVDO, LTE and all other cellular standards

Maximum Gain


Maximium Output Power

UL 24 dBm, DL 10 dBm

MGC(Step Attenuation)

≥ 25 dB/ 1 dB step

I/O port



50 ohm

Environment Condition



8.6 in×6.5 in ×2 in /218 mm×165 mm×50 mm


≥ 5.0 lb / 2.2 kg

Power Supply

Input AC 100~240 V, 50/60 Hz, Output DC 12 V/3 A


The HiBoost 4K Smart Link  is easy to install. Everything is included in the kit. Our technical support are happy to assist if you have any questions. Call 972-870-5666 or email support@hiboost.com

Download the HiBoost 4K Smart Link User Manual(pdf)

Download the HiBoost 4K Smart Link Data Sheet(pdf)

Download the HiBoost 4K Smart Link Quick Start Guide(pdf)

Download the HiBoost 4K Smart Link Images

5% Discount
Next time
10% Discount
15% Discount
5% Discount
No luck today
15% Discount
50% Discount
No prize
15% Discount
Get your chance to win a price!
Enter your email address and spin the wheel. This is your chance to win amazing discounts!
Our in-house rules:
  • One game per user
  • Cheaters will be disqualified.