SmoothTalker Stealth X6

Product discontinued

We're very sorry, but this product has been discontinued. Please contact us if you need assistance choosing another product.

Carbon neutral deliveries

Product Description

The SmoothTalker Stealth X6 Extreme Power signal booster system is a 6-band booster with up to 72 dB of gain. The Stealth X6 improves 2G/3G/4G/LTE voice and data coverage on all US and Canadian carriers, except Sprint band 26 (lower 800MHz) and band 41 (2500 MHz). 

This is SmoothTalker’s most powerful unit. It is ideal for isolated areas where existing outside signal is poor. If existing outside signal is strong, you may wish to use the Smooth Talker Z6 range. The Stealth X6 booster is recommended for areas located up to 35 mi from the cell tower.

The amplifier incorporates dynamic adaptive gain control for powerful performance and brilliant reception. The proprietary STEALTH TECH® technology prevents shutdowns from poor antenna placement and changing environment.

The Stealth X6 amplifier has LED level indicators to make installation quick, easy and effective. Signal gain is improved with automatic oscillation control, and network overload protection, so that you have maximum gain and coverage.

Features and Benefits

  • Connects in rural or “no coverage” locations. Ideal for rural and remote locations greater than 10 mi. (15 km) and up to 35 mi. (60 km) from the nearest cellular tower.
  • Fast straightforward installation
  • Improves reception and data speeds
  • Reduces dropped connections
  • STEALTH TECH keeps the booster working for optimal gain and power levels
  • Increases battery life of your phone
  • FCC and IC Approved
  • 3 year Warranty
  • Made in North America

Kit includes outdoor and indoor antennas, amplifier, and power supply. The unit comes with sturdy long lasting cast aluminum housing.



The outdoor antenna is a wide band high gain 18’ yagi antenna. This is a directional antenna designed for pointing directly at the cellular tower. It comes with a multi-adjustable mounting bracket made of weather proof plastic with stainless hardware for mounting to walls or poles. 

The indoor antenna is a wide band directional panel antenna. The antenna can be fixed to the wall to allow optimum reception to targeted areas. It has 20’ of cable attached. The kit includes an adjustable mounting bracket made of weather proof impact resistant plastic. It comes with stainless steel screws and double sided tape to mount to walls or windows.


The Stealth X6 comes with CB205 quad shield cable for maximum performance. The cable lengths included are 2x30FT.

How it works

1 - Outdoor antenna

The outdoor antenna receives and transmits signal to nearby cellphone towers. Outdoor antennas can be either directional or omni-directional.

2 - Cellular amplifier

The amplifier (or "repeater") boosts the signal coming to and from and going to the cell phone tower. The "gain" of the amplifier describes how strong the amplification is - you'll see that word scattered across our product pages.

3 - Indoor antenna

The indoor antenna rebroadcasts the signal inside the building. Some kits have more than one indoor antenna to help distribute the signal.

how a cell phone booster works


The coverage area you can expect from any signal booster kit depends on the signal strength outside the building.

Outdoor Signal Estimated coverage area
Strong outdoor signal (5 bars) up to 14,000 sq. ft. coverage
Medium outdoor signal (3-4 bars) up to 3,500 sq. ft. coverage
Weak outdoor signal (1-2 bars) up to 1,000 sq. ft. coverage


The SmoothTalker Stealth X6 is compatible with the following networks:

Carrier Supported services Unsupported services
Verizon 2G/3G Voice + Data 4G LTE
AT&T 2G/3G Voice + Data 4G LTE
Sprint 2G/3G Voice + Data 4G LTE
T-Mobile 2G/3G Voice + Data 4G LTE

The SmoothTalker Stealth X6 kit is also compatible with Canadian networks, though they are not listed above. Check our international carriers page for more information.

Supported frequency bands (MHz): 698-716 / 728-746 / 746-757 / 776-787 / 824-849 / 869-894 / 1850-1910 / 1930-1990 / 1910-1915 / 1990-1995 / 1710-1755 / 2110-2155


Like almost all of our products, the SmoothTalker Stealth X6 can be installed by anyone who feels comfortable doing simple home repairs and running cabling. If you’re not comfortable doing that kind of work, you might consider finding a local electronics installer or asking a friend.

Unlimited free technical support:

Anytime you purchase from Waveform, you get unlimited free technical support from our signal experts. Whether it’s installing a kit or troubleshooting a problem, we’re here. In over 11 years of being in business we’ve helped over 25,000 customers install kits and improve their signal.

Have a question now? Call us from 7am to 5pm PST: 1-800-761-3041.


Dimensions L 5.0” x W 4.75” x H 1.25” (inch)
Frequency 698-716 / 728-746 / 746-757 / 776-787 / 824-849 / 869-894 / 1850-1910 / 1930-1990 / 1910-1915 / 1990-1995 / 1710-1755 / 2110-2155
Gain 72 dB
Noise <4 dB
Output power 1 watt EIRP
Connector type N connectors
Cable length 2 x 30'
Cable type CB205 quad shield
Coverage 1000 sq ft (1 coverage with weak signal)
3500 sq ft (2 coverage with medium signal)
14000 sq ft (3 coverage with strong signal)

Customer reviews

Satisfaction guarantee icon

90 Day

Satisfaction Guarantee

We stand behind the products we sell. We’ll accept a return anytime within 90 days if you’re not happy with your purchase from us.

View our return policy

Cellphone booster kit installation icon

Free & Fast


Any order over $99 ships free. And we get packages out the door quickly: 82% of orders are shipped within 24 working hours.

Read more

Cellphone booster kit installation icon

Large Building?

We can help

Our signal experts have helped design and install kits in buildings of over 200,000 sq ft. Let us help you find the right product.

Get in touch