7 Smartphone Myths You are Wrong About !

[Kunapatra]

The battery health indicator you see in your phone isn’t always accurate. Your smartphone may show the correct battery percentage, but that doesn’t mean your battery health is actually fine. When you apply a tempered glass screen protector, it can drain your phone’s battery faster, especially if you’re using the wrong type. If you use an incorrect screen protector, it can also cause touch sensitivity issues. Many people don’t know this, but at one point, a trend emerged where people started using blue light filter glasses, thinking it would completely protect their eyes while using a laptop all day. However, that is not entirely correct.

Your phone’s SIM card is actually one of the biggest factors draining your battery. If you are using dual SIMs, your battery will drain faster. According to research conducted by the Nordic Council of Ministers, placing your phone on the right side slightly improves the signal.

A common misconception is that private browsing is truly private. In reality, many aspects of your smartphone are misleading, including the battery percentage displayed on your phone—it may not always be accurate. Did you know that even if your phone has an IP rating for water resistance, manufacturers do not provide free repairs if your phone gets damaged by water? Companies clearly mention that water damage is not covered under warranty even if your phone is IP-rated. The battery health indicators in your phone also don’t always show the correct battery status.

Many people believe that keeping Bluetooth on drains the battery faster. However, that is no longer true. Previously, normal Bluetooth consumed more power, but now Bluetooth Low Energy (BLE) has been introduced, which consumes significantly less battery. Many people think Bluetooth continuously scans in the background, but that’s not the case. Bluetooth only scans when you turn on the screen or open the Bluetooth settings. After 2010, BLE technology made Bluetooth devices 10 times more power-efficient. People also assume that Wi-Fi and Bluetooth consume the same amount of battery, but that’s incorrect. Bluetooth uses around 1mW, whereas Wi-Fi consumes 10–30mW, and LTE consumes even more.

Your SIM card is the biggest battery consumer in your phone, especially if you are using dual SIMs. Another thing to note is that your phone’s battery percentage indicator is just an estimate, and it may not always be accurate. Have you ever noticed that dropping from 50% to 40% takes a few hours, but the last 10% drains very quickly? That’s because battery consumption isn’t linear—it depends on voltage readings. The system uses multiple methods to estimate battery life, similar to how you estimate the water level in a tank by observing how much is used and how much remains. The battery percentage you see is just a rough calculation based on voltage usage, past charging history, and temperature changes.

Your phone’s battery is affected by chemical reactions and temperature. Since chemical reactions change based on heat, the phone also considers temperature when estimating battery percentage. However, most people wrongly assume that the battery percentage displayed is 100% accurate, but it’s just a rough guess. This is why I personally don’t trust battery percentage readings completely.

Many people think having an IP-rated phone means it is completely waterproof and can be used while swimming or in the rain without worry. But if your phone gets water damaged and you take it to the manufacturer for repair, they will refuse to repair it for free. Many brands explicitly mention that water damage is not covered under warranty. While IP-rated phones usually don’t have problems, I wouldn’t recommend taking risks. In some cases, salt water and dirty water can still damage your phone. Additionally, not all brands get their IP certification from third-party agencies; some conduct internal testing, which could be less reliable.

At one point, a trend emerged where people believed blue light glasses could completely protect their eyes while using screens all day. However, this is not entirely true. Research published in PubMed, a trusted source, tested 120 participants: one group used blue light glasses while the other used normal glasses. Both groups performed the same screen-related tasks, and the study found no significant difference in eye strain between the two groups.

So, what actually causes eye discomfort? According to the American Academy of Optometry (AAO), blue light does not harm your eyes. The real problem comes from excessive screen time, reduced blinking, poor posture, and lack of breaks. When people stare at screens for too long, they blink less, which makes the eyes dry and irritated. This leads to discomfort, and many people mistakenly believe that blue light is the cause. Another factor is that when people stare at screens too closely for long periods, their eyes take time to adjust when looking at distant objects.

So, how can you reduce eye strain? The best way is to maintain proper lighting, sit in a good posture, take regular breaks, and keep a comfortable distance from the screen. One well-known method is the 20-20-20 rule: every 20 minutes, look at an object 20 feet away for 20 seconds. This helps relax your eyes.

You might wonder if blue light glasses are completely useless. Not exactly. Blue light affects sleep quality. Our bodies produce melatonin, a hormone responsible for sleep. Excessive blue light exposure at night slows down melatonin production, making it harder to fall asleep. So, if you use screens at night, blue light glasses or night mode (yellow screen filter) can help improve sleep.

Another common misconception is that benchmark scores determine real-world phone performance. Many people assume that a high benchmark score means the phone will run smoothly. However, benchmark tests are extreme stress tests that do not always reflect real-world usage. In reality, daily performance depends on UI optimization, battery health, and storage performance rather than just benchmark scores.

Some companies even pay benchmark platforms to boost their scores, making the results unreliable. Many high-scoring phones still lag and stutter in real-world use. Instead of focusing only on benchmark numbers, it’s better to check real-world user experience. Just like a camera’s megapixel count doesn’t guarantee good image quality, a high benchmark score doesn’t guarantee smooth performance.

So, how can you check your phone’s battery health? Many people go to Settings > Battery > Battery Health and assume the displayed percentage is accurate. However, recent reports indicate that these indicators are not always reliable.

[SwIshta]

Many thanks for the valuable mythbusters!👏

[Kunapatra]

Thank u so much for the appreciation ❤🙏

[Mr_Aniket]

Thank you so much for this valuable information 🙏🙏

[Kunapatra]

You're welcome ❤😊