Application to Check If Your Android Device is Working Properly

By | December 28, 2021

Your smartphone has a large number of components in it. If any of these components don’t work properly, it can ruin your whole experience.

But how do you pinpoint what’s wrong with your device? Maybe the accelerometer seems a bit off, or web browsing on cellular data or Wi-Fi feels sluggish. How about you buy a used Android device and want to check if everything is working fine

Whatever the case, there is an app that will help you figure out what’s wrong with your Android phone. Even if you don’t have any particular issues, it’s a good idea to run a smartphone check to make sure everything is working fine.

Phone Test – (Phone test)

Phone Check (and Test) is one of the best Android hardware checking apps you can get. This app functions somewhat like the CPU-Z desktop app, giving you a complete rundown of your phone’s hardware specs while adding various hardware check options.

Hardware check options include:

  • Low memory check and suggestions
  • Battery check and charging socket test
  • Wi-Fi and radio check
  • Audio test for speakers, microphone, headphone jack and volume buttons
  • Display tests, such as dead pixels and color consistency
  • GPS tracking and location testing
  • Thermal stress
  • CPU, memory and storage stress check

Fortunately, this app is easy to use. The Monitor option provides a basic overview of your phone’s current status, including CPU load, battery charge and overall health, and your current network connection.

You then have the Guided Tests menu, a section that lets you run a series of tests. Go to the list and select the checks and tests you want (those related to your smartphone problem), or leave them all turned on for a full system-wide check.

The Phone Check app recommends turning on Wi-Fi, Bluetooth, and NFC, making sure you have at least 30 percent battery, and performing tests on battery power (not your wall outlet). When you’re ready, hit the Test Phone button and watch the Android smartphone testing magic unfold.

Download: Phone Test – (Phone test) (Free)

Phone Doctor Plus

Phone Doctor Plus is like a little trip to the doctor … but for your phone. This app allows you to run a series of system hardware checks to make sure every bit of your phone is working properly.

The tests between Phone Doctor Plus and Phone Check are relatively the same, but Phone Doctor Plus UI provides a better overall experience. At least, it looks visually. Under the hood, using an old Samsung Galaxy S8 and OnePlus One for testing, all the results are the same.
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Phone Doctor Plus has 30 or more hardware tests for your Android smartphone, such as:

  • Motion sensors, including gyroscope, accelerometer, and proximity sensor
  • Display test, including dead pixels and touchscreen response
  • Mobile and network connection test
  • Temperature and humidity sensor test
  • Memory, storage and CPU benchmarking

Phone Doctor Plus certainly makes it easy to test your device. Star ratings quickly describe any problem or alert you of something that could turn into a problem. The battery health check is also useful, offering suggestions for the best way to upgrade and recalibrate your battery.

Download: Phone Doctor Plus (Free)

Dead Pixels Test and Fix

The previous two apps found dead pixels, but didn’t fix them afterwards. If Phone Doctor Plus or Phone Check does show a dead pixel or two, you can switch to the Dead Pixels Test and Fix app.

This free app runs a scan similar to other Android troubleshooting apps, identifying dead pixels. Some stuck pixels are hardware defects, and cannot be fixed by any application. Others, however, need to cycle through their three options (red, green, and blue) just enough time to refresh them.

Dead Pixels Test and Fix attempts to correct partial sub-pixel defects, stuck sub-pixels, dead pixels, dark and light dot defects, and ghost images. This process can take anywhere from a few minutes to over an hour to run. The developer suggests that if you don’t see an improvement within a few hours, the app will unfortunately not be able to fix your problem.

Download: Dead Pixels Test and Fix (Free)


Battery life and degradation are some of the most annoying aspects of owning a mobile device. Your battery seems to be working fine one moment, then the next it’s stuck with 25 percent charge remaining. There’s a reason: batteries have a limited lifespan, and most of us don’t maintain them efficiently.

The AccuBattery app doesn’t magically fix your battery problems. If your battery dies, no app can help. However, AccuBattery runs a list of certain battery health checks in an attempt to find out where your battery is in its lifecycle.

The app displays useful information such as the current battery capacity versus the desired capacity (and thus, wear rate). You’ll also find out how much usage your battery lasts on each charge, and how much power each app uses, along with the overall discharge speed.

Download: AccuBattery (Free, premium version available)

Some of these Apps represent some of the best free options for you to do a free Android health check. There are a large number of apps in the Play Store that claim to be able to check, repair, update and clean your Android device. Most aren’t necessarily bad apps, but are clones of existing projects, offering little innovation or an extensive suite of tools.

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