Smartphone Flashlight Use: Most users use their phone's flashlight for lighting, taking photos, and videos, but it can also perform many other functions, including measuring your heart rate.

Smartphone Flashlight Use: The flashlight located near the phone's back camera isn't just for lighting in the dark. Whether you have an old or new phone, you can use it for many other purposes that most people aren't aware of. Most people use it for photography and videography, but it can also be used for many other purposes. Today, we're going to tell you how this flashlight can perform many functions, including measuring your heart rate.

These are the functions your phone's flashlight can perform.

Detect your heart rate: You can use your phone's flashlight to determine your heart rate. Place your finger on the flashlight, and it can measure your heart rate based on blood flow. You can find several apps for this on the App Store and Play Store.

Call and message alerts from the flashlight - If you're in a place where it's necessary to keep your phone on silent, you can use your flashlight to receive call and message alerts. Most phones now have this feature, and it doesn't require a separate app. This feature blinks the flashlight when you receive a call or message.

Can save lives in a difficult situation - If you're stuck in the dark and need help, you can use your flashlight to summon assistance. In the dark, your phone's flashlight can show your location to rescuers. You can also send an emergency signal by flashing it in a specific pattern.

Can detect hidden cameras - If you want to detect hidden cameras in a hotel room, your phone's flashlight can help. Turn off the lights and scan the area with your phone's flashlight. If there's a hidden camera, the flashlight's light will reflect off its lens. In this way, you will be able to detect the hidden camera.