{"id":603844,"date":"2025-11-30T18:37:21","date_gmt":"2025-11-30T18:37:21","guid":{"rendered":"https:\/\/www.europesays.com\/uk\/603844\/"},"modified":"2025-11-30T18:37:21","modified_gmt":"2025-11-30T18:37:21","slug":"i-didnt-realize-my-android-could-measure-this-but-its-surprisingly-accurate","status":"publish","type":"post","link":"https:\/\/www.europesays.com\/uk\/603844\/","title":{"rendered":"I didn\u2019t realize my Android could measure this \u2014 but it\u2019s surprisingly accurate"},"content":{"rendered":"

Our smartphones have replaced a lot of things over the years, but not all of them are obvious. It\u2019s easy to recognize how they have replaced clocks, calculators, MP3 players, and even standalone cameras for most of us. But beyond these, there are several more unconventional ways to use an Android phone<\/a>.<\/p>\n

I recently ended up using mine to measure light and sound in my room, which also happens to be my home office. I was trying to improve my work setup, and my Android phone helped me perfectly well with that.<\/p>\n

Using my phone as a pocket light meter<\/p>\n

How I dialed in my desk lighting with a free app<\/p>\n

I always assumed you needed a dedicated device to measure light properly. Light meters aren’t exactly expensive, and you can find a decent one on Amazon for around $30. But I\u2019m not a photographer or someone who needs one for professional work, so spending on a device that I\u2019d only use sparingly really didn’t make sense.<\/p>\n

This got me thinking. My Android phone already adjusts its brightness based on the surroundings, so it must be reading the light somehow. And sure enough, it does. All Android phones have an ambient light sensor near the front camera. Its main job is to help with adaptive brightness, but with an app like Light Meter<\/a>, you can actually see and use that data yourself.<\/p>\n

I tried this app while testing a desk slab light I bought for my setup. The light offers a few different brightness levels, and I wanted to set it at the right level for my workspace. By the way, for general office environments, light levels between 300 and 600 lux are usually recommended.<\/p>\n

All I had to do was open the Light Meter app on my phone, place it on the desk, and switch between different brightness levels. The app lets you choose between digital and analog interfaces and even saves all the readings, which is useful for comparing results. It\u2019s perfect for someone like me who just wants to check if a room is too dim or bright without buying another gadget that will end up in a drawer.<\/p>\n

Measuring everyday noise with just my phone<\/p>\n

Discovering the noise around me<\/p>\n

\"SoundScreenshot by Pankil Shah — No attribution required\"SoundScreenshot by Pankil Shah — No attribution required\"SoundScreenshot by Pankil Shah — No attribution required<\/p>\n

Noise is one of those things you usually only notice when it gets annoying. A loud street, a buzzing fan, or even construction happening nearby. I never really thought about how loud my everyday environment was until I started recording voiceovers for my videos<\/a> with a dedicated microphone.<\/p>\n

The first time I heard the raw recording back in Audacity, I was actually shocked by how much background noise there was. Sounds I had completely tuned out suddenly felt impossible to ignore.<\/p>\n

Android phones come with surprisingly capable microphones, and there are plenty of apps like Sound Meter<\/a> that can measure sound levels in decibels. When I first opened the app, my \u201cquiet\u201d room was hovering around 40 to 50 decibels. When the fan was on, it jumped to 55 decibels.<\/p>\n

I ended up moving my recording setup to a different corner of my room, adjusting the fan speed, and even adding a door noise blocker to see how much difference it made. All of this helped me bring the overall noise level down to 20 decibels, which is much more acceptable for recording.<\/p>\n

Using the Sound Meter is just as easy as Light Meter. You open it, and it starts showing noise levels in real time. It also labels the sound ranges with examples like a quiet office, busy street, or heavy traffic, which helps you understand what those numbers actually mean in real life.<\/p>\n

\"Samsung<\/p>\n

\t\t
\n\t\t\tI turned my old Galaxy phone into a smart home sensor and it’s better than I expected
\n\t\t<\/a><\/p>\n

I turned my old Galaxy phone into a baby monitor in five minutes.<\/p>\n

How accurate these built-in sensors actually are<\/p>\n

Convenience versus precision<\/p>\n

\"Android
\n Pankil Shah \/ MakeUseOfCredit:\u00a0Pankil Shah \/ MakeUseOf<\/p>\n

Using an Android phone to measure the light and noise level is convenient, but the obvious question is how accurate these readings are. The short answer is that they\u2019re not lab-grade instruments, but they\u2019re far from useless.<\/p>\n

Smartphone sensors and microphones are not exactly designed to be used as measuring tools. Also, the quality of these components can vary from phone to phone. That said, if you are using a reasonably modern Android phone without any physical damage, these light and noise measurement apps can be fairly accurate for general, everyday use.<\/p>\n

You can get even more accurate results if you put in a bit of effort and calibrate them. Of course, they’ll never replace professional tools in studios, labs, or industrial environments.<\/p>\n

Your phone can measure a lot more<\/p>\n

Besides light and noise, you can use your Android phone to measure a lot of things. Apps like Google Fit<\/a> can use your phone\u2019s sensors to track steps, distance traveled, and even measure approximate heart rate using the camera and flashlight.<\/p>\n

There are also apps like AR Ruler<\/a>, which turns your phone\u2019s camera into a virtual measuring tape<\/a>. It lets you measure objects, room dimensions, area, and even your height. If you have a Pixel 8 Pro or one of the later Pro models, you can even use the Pixel Thermometer<\/a> app to check the surface temperature of objects.<\/p>\n","protected":false},"excerpt":{"rendered":"Our smartphones have replaced a lot of things over the years, but not all of them are obvious.…\n","protected":false},"author":2,"featured_media":603845,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3159],"tags":[547,53,16,15],"class_list":{"0":"post-603844","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-mobile","8":"tag-mobile","9":"tag-technology","10":"tag-uk","11":"tag-united-kingdom"},"share_on_mastodon":{"url":"https:\/\/pubeurope.com\/@uk\/115640104130765354","error":""},"_links":{"self":[{"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/posts\/603844","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/comments?post=603844"}],"version-history":[{"count":0,"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/posts\/603844\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/media\/603845"}],"wp:attachment":[{"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/media?parent=603844"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/categories?post=603844"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/tags?post=603844"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}