5 Best Cell Phone Signal Boosters for Car, Truck and RV

If you frequently travel or if you’re going on a long trip, chances are, you’ll pass through areas where the signal is weak or there’s no signal at all. In such a situation, having cell phone signal boosters for car, truck, or RV is important. Signal boosters ensure that you get a strong and stable signal for texts, calls, and mobile data wherever you are.

Recommended: Cell Phone Signal Boosters of All Type

But some of you might ask, “Isn’t using your phone while driving unsafe?” Yes, definitely. But it’s important to have a stable signal when traveling too. What if you badly need to call someone or you really have to look up something important on the web? What if your life depends on a text but you can’t send the message just because you’re in a dead zone? These are scenarios that you must be prepared about when traveling cross-country or when going to regions where the signal is weak.

There are signal boosters for home or office. But if you want something that is compact enough for a car but strong enough for a full RV, then you should definitely get cell phone signal boosters for a car. You should also consider installing internet booster apps on your phone.

Before going on a road trip, you might as well check out these travel apps for Android. Downloading offline GPS navigation apps is also a good idea, especially if you’re traveling to a place you’ve never been to.

The Best Cell Phone Signal Boosters for Vehicles

Best OverallweBoost Drive Sleek Cell Phone Signal Booster
CheapestPhonetone 4G Cell Phone Signal Booster
Best Value for Money

SureCall Fusion2Go 3.0

Highly RecommendedweBoost Drive 4G-M
Runner UpANYCALL A Cell Phone Signal Booster

What Causes Weak Signal in Your Vehicle

No matter how reliable your network or phone is, it’s still possible for you to experience weak signal when you’re in your vehicle.

There are various possible causes why this happens. The following are the common causes of weak cell reception:

1. Distance from the cell tower

The farther you are from the cell tower, the weaker the signal is. So if you are driving in an area where the nearest cell tower is, let’s say, 50 miles away, expect the signal to be weak. If there are other factors, there’d be no signal at all.

2. Cell tower direction

Aside from the distance, which way the cell tower is facing can also affect the signal. For example, if the tower is faced in the direction opposite to where you are, then your phone’s signal could be affected.

3. Weather

A strong storm can knock over a cell tower. Even if it does not, the weather can still weaken your phone’s signal. This is especially true in case of severe weather systems. In some cases, even moderate snow, hail, fog or rain can also affect the signal. This is because “water vapor” impedes radio waves.

Why is this so? The network traffic is carried by radio waves. Water vapor impedes with these radio waves because water conducts electricity. The vapor reflects or refracts the radio waves. In effect, it will take longer for the signal (carried by the radio waves) to get to your phone from the cell tower, or vice versa.

4. Obstruction

Driving through mountainous regions can mean weaker cell phone signal. This is because mountains, hills and thick lines of trees can totally eliminate or weaken the signal. Conductive construction materials such as copper, silver, tin and steel, when they obstruct, can also weaken the signal.

But if you’re driving in highly urban areas, it’s safer if you have radar detector apps in your device.

5 Cell Phone Signal Boosters for Your Vehicle

Cell phone signal boosters mainly do the same thing: to boost the signal in your area when the reception is weak. However, there are those that you can use at home or office; and there are those which are best for your vehicle.

What we’re featuring here are the best cell phone signal boosters for car, truck and RV, or any vehicle for that matter. Some of these are compact enough to fit perfectly in your sedan, and some are full-powered to improve the signal in your RV. Whatever it is you’re looking for, you can find it here.

Now here are the signal boosters that you should check out:

1. weBoost Drive 4G-M

When it comes to signal boosters, there’s one trusted name that instantly comes to mind: weBoost. Of all the great weBoost signal boosters, the Drive 4G-M is no doubt the most reliable at a reasonable cost.

Drive 4G-M

The weBoost Drive 4G-M gives your phone 2 additional bars when the signal is weak. Take note that a signal booster only amplifies a signal. This means that there has to be a signal, no matter how weak, in order for it to amplify or strengthen.

It has a slim and small interior antenna which can be easily mounted in any part of your car: on the dashboard, tucked in under the seat, you name it. It even comes with a velcro patch. Moreover, despite its compact and slim profile, it is highly durable and can withstand the roughest of conditions.

The reason why we chose this to be on the top spot is that it is compact, durable, functional, and affordable. Well, not that affordable, especially when compared to the others on the list. But considering its many great features and pros, it’s definitely worth it.


  • Supports multiple devices, up to 4 users
  • Enhances 3G and 4G signals
  • Quick and easy to set up
  • Boosts the signal up to 32X faster downloads and uploads, higher audio quality, and fewer dropped calls
  • Can be used in car, van, SUV, truck or RV
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2. weBoost Drive Sleek Cell Phone Signal Booster

Another weBoost cell phone signal booster for your vehicle is the Drive Sleek. It’s comparatively cheaper than the Drive 4G-M.

Drive Sleek

However, unlike the other weBoost signal booster, this one can boost up to 32X the signal of only one device in a car. With this, it’s highly recommended if you’re always traveling by yourself.

Nevertheless, this signal booster still guarantees that you’ll get fewer dropped calls and it can extend your talk-time for 2 more hours. Moreover, it boosts 4G LTE and 3G signals for faster download and upload speed.

This device is also pretty slim and can be easily set up inside your vehicle.


  • Single-user cradle
  • 2 hours additional talk-time
  • Compatible with all US networks
  • Enhances 3G and 4G LTE signals
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3. Phonetone 4G Cell Phone Signal Booster

Looking for a budget-friendly cell phone signal booster for your car? Phonetone 4G Signal Booster is definitely the cheapest on the list. Despite its price, it can enhance 4G LTE signals in the car, truck, van or RV. It can support multiple devices at once.

Phonetone 4G Mobile Repeater

However, it has 2 main cons. First, it’s 4G band only. Second, it has limited mounting support. Its external antenna is adhesive-mounted, which makes it more difficult to mount. Its internal flat antenna is also considerably larger than that of other models, which makes it harder to tuck away inside the vehicle.

This mobile repeater may not be the greatest, but it’s definitely more than what you’d expect from something so affordable.


  • Automatic signal adjustment
  • Supports multiple-users
  • Improves data speed and avoids dropped calls
  • Enhances 4G LTE voice and data signals
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4. SureCall Fusion2Go 3.0

SureCall Fusion2G 3.0 is a great option if you’re looking for something that can support multiple users. This model is the brand’s most mobile cell phone signal booster. Perfectly designed for vehicles of various types.

Fusion2Go 3.0

This signal booster can amplify text, voice and 4G LTE data by 50dB. While it can boost the signal strength for multiple devices, each passenger will not be receiving the same signal quality. The closest you are to the internal velcro antenna, the better your signal is. Guarantees more miles of uninterrupted signal when you’re in remote areas.

The outdoor antenna needs to be magnetically mounted. This means that you have to find the perfect spot to mount this outside your vehicle.

Moreover, while this signal booster comes with top-quality features, it is kind of expensive. It is, in fact, the most expensive signal booster on the list.


  • Works for all North American networks
  • Extends phone battery and enhances signal strength for multiple users
  • Reduces dropped calls
  • More miles of uninterrupted coverage
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5. ANYCALL A Cell Phone Signal Booster

ANYCALL A Cell Phone Signal Booster completes our list of the best signal boosters for vehicles (car, van, RV or truck). Compatible with all US networks, this model enhances voice, text and data speed signals (2G, 3G and 4G).

Cell Phone Signal Booster

With this booster, you’ll get improved voice quality, fewer missed and dropped calls, and faster downloads and uploads even when you’re in remote areas with weak cellular reception. It can also detect any signal, no matter how weak, and amplify that signal to provide you with a stronger signal.


  • Simultaneously supports multiple users
  • Lightweight, mobile antennas and amplifiers
  • Automatic gain control
  • Better voice and data signal
amazon buy button

Other Questions People Ask About 

Are cell phone signal boosters safe?

Yes. According to www.signalbooster.com, Signal boosters help eliminate or lessen the radiation caused by a “weak signal scenario.” Phones emit stronger radiation when they receive weaker signals. By providing a better signal, signal boosters, in effect, eliminate radiation.

How does a signal booster work?

To understand how a signal booster works, we must get to know its 3 main systems. First, the outside antenna captures the weak signal. Second, the amplifier boosts the weak signal. Third, the inside antenna rebroadcasts the enhanced signal inside your car or RV.

How can you boost cell phone signal?

The first thing to do is stop and step outside your vehicle, and then try to find a nearby area where the signal is better. Usually, the signal is better in elevated areas. If the signal is still weak, switch from 4G to 3G, and try to call or message again. But if all else fails, a signal booster might be the only solution.

Boost Your Signal, Drive Safe

We live in a time when technology is getting more advanced at such a fast pace. Despite this, cellular signal problems have not been totally eliminated. Even if we now live in a technological age, we may still experience a weak signal or worse, dead zones.

Some people will simply shrug off if they experience cellular signal problems. However, if you frequently travel or if you live in remote areas, you might want to consider getting a cell phone signal booster. You never know when you’ll be needing that emergency phone call, text or mobile data.

What do you think of these cell phone signal boosters? Let us know in the comment section below.

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