How To Check Mobile Signal Strength: A Comprehensive Guide

Daisy Raines

Jan 11, 2024 • Filed to: Manage Device Data • Proven solutions

Checking mobile signal strength is crucial for a seamless communication experience. Weak signals can lead to call drops, slow data speeds, and disrupted connectivity. To check the mobile signal strength of your mobile network, use your phone's built-in signal bars. Or use specific apps designed for signal testing.

Common issues related to weak signals include dropped calls, slow internet, and poor voice quality. For a comprehensive guide on how to test the mobile phone signal, explore the article below. Don't let weak signals hinder your mobile experience. Learn how to stay connected anytime, anywhere.

mobile phone with no service status

Part 1. Everything You Need To Know About Signal Strength

Signal strength is a critical factor in mobile communication. It influences the quality and reliability of calls, text messages, and data connectivity. A stronger signal results in clearer voice calls and faster data speeds. Meanwhile, a weaker signal can lead to dropped calls and sluggish internet performance.

iphone with no signal

Several factors can impact signal strength.

  • Distance from the Tower.The farther you are from a cellular tower, the weaker your signal will likely be. Signal strength tends to degrade as you move away from the source.
  • Physical Obstacles: Buildings, trees, hills, and other structures can block or absorb radio waves, causing signal interference. These obstacles can weaken your mobile signal.
  • Network Congestion: High network usage in a specific area, such as during events or rush hours, can overload the cellular network. It can result in reduced signal strength for all users.
  • Weather Conditions: Atmospheric conditions like heavy rain, snow, or thunderstorms can affect signals.

Signal bars on your phone's display indicate the current signal strength. More bars signify a stronger signal, while fewer bars suggest a weaker signal. It's helpful to use dedicated apps like a 4G or 5G signal tester for a more accurate signal strength reading.

Part 2. Methods To Check Signal Strength

Knowing how to test your mobile network is essential to maintain a consistent connection. Here are different methods to check the signal strength and identify potential areas for improvement.

Method 1: On-Screen Signal Bars

Most mobile devices display signal strength using bars on the screen. More bars indicate a stronger signal, while fewer bars suggest a weaker connection. However, on-screen signal bars offer a general indication and may not provide precise data.

different signal bar states

Method 2: Dialing a Code

Dialing specific codes, such as 3001#12345# on iOS or ##4636## on Android, can access a field test mode displaying numerical signal details. It offers a more accurate view of your signal strength.

ios field test code

Method 3: Checking the Settings Menu

You can find signal strength information in your phone's settings under Network or About Phone. This includes the signal strength in dBm (decibels relative to a milliwatt), providing a precise reading.


Typically, signal strength is categorized as follows.

  • -50: Outstanding (close to the cell tower)
  • -65 to -50 means you have a very good signal
  • -80 to -65 means your signal is good
  • -100 to -80 means your signal is below average
  • -120 to -100 means your signal is weak

signal strength on settings menu

Method 4: Mobile Signal Testing Apps

Several apps are available for both iOS and Android. They check signal strength and often provide real-time data and signal quality information. Apps like Open Signal or Network Signal Pro summarize your mobile network and signal strength in percentage.

signal testing apps menu

Method 5: Checking via Carrier App

Some mobile carriers offer their official apps that provide signal strength data and other network-related information.

Method 6: Online Coverage Maps

Many carriers provide online coverage maps that allow you to check signal strength in your area. These maps give you an overview of signal quality and network coverage.

online coverage maps

Using these methods, you can check your mobile signal strength. However, if you need more information about your phone's hardware, a tool such as Wondershare Dr.Fone is an excellent choice. It can help pinpoint the exact issue affecting your signal.

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Part 3. Wondershare Dr.Fone – A Reliable Solution for Ensuring Signal Optimization

Accurate phone verification and detailed device information ensure optimal signal strength on your mobile device. Dr.Fone is a dependable solution for diagnosing and enhancing your device's performance.

dr.fone main window

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Key Features

Here's why conducting a verification report and device details report is essential for your mobile device.

Real-Time Mobile Device Diagnostics.

Dr.Fone provides real-time, in-depth diagnostics. It offers a range of features, including:

  • Basic Device Info.Get comprehensive information about your device, including its model, operating system, and more.
  • Hardware and Parameters.Understand the hardware specifications and parameters affecting your device's performance.
  • Mobile Device Status.Monitor your device's status in real-time, such as battery life and storage availability.
  • Professional Report. Receive a detailed report with actionable insights on optimizing your device for enhanced signal strength.


The Apple version offers Phone Verification and Device Details, while the Android version only provides Device Details. Though Dr.Fone can't directly check signal strength, it diagnoses phone hardware for issues that may affect signal quality.

Pricing (as of October 15, 2023)

Below are the pricing details of Dr.Fone's powerful toolkit to elevate your device performance.

  • Fone Full Toolki.: $99.95 – A comprehensive package with all the tools you need for complete device optimization.
  • Fone Basic. $39.95 – A more budget-friendly option for essential device management and signal enhancement.

Part 4. How To Use. Dr. Fone To Generate Device Reports

Dr.Fone offers a powerful tool for phone verification. The tool helps you ensure your device is always operating at its best. Here's a step-by-step guide on how to use this feature.

  • Step 1: First, download and install Dr.Fone on your computer. Ensure you choose the correct version (Apple for iOS devices and Android for Android devices). Next, launch Dr.Fone and connect your iPhone or Android device to your computer using a USB cable. Wait for Dr.Fone to recognize your device. Click your mobile phone under the My Device section.
  • dr.fone detecting your mobile device

  • Step 2: Click on the Device Details option in Dr. Fone's interface. Note that the Apple version provides both Phone Verification and Device Details features. The Android version offers access to Device Details only.
  • Note

    You can view the device details in a Notepad document by using the Open in Notepad option. Click the Copy to Clipboard option to copy all the device details for easy pasting or reference.

    dr.fone device details window

  • Step 3 (iOS Only): If you're using an Apple device, you can access the Phone Verification feature. Click it to initiate the verification process. Dr.Fone will run checks on your phone's functionality and settings.
  • dr.fone apple verification report

    After the verification process is complete, you'll receive a detailed report. This report will outline the status of your device, including any issues detected during the verification. You can save the verification report as an image or text document for future reference. You can also close the application if you've finished reviewing the results.

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    Performing a mobile network test or verification report is important for a seamless mobile experience. Understanding factors influencing signal and using the signal strength test methods can pinpoint areas with weak coverage.

    Consider using Dr.Fone's advanced phone verification to ensure enhanced signal performance. The feature helps diagnose your phone for any issues to assist in checking your mobile signal strength. Enjoy uninterrupted calls, fast data speeds, and a frustration-free mobile network experience with the right tools.

    Daisy Raines

    staff Editor

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