Discover the hidden gems that make modern smartphones genuinely extraordinary

Smartphones have become an essential part of everyday life — but most of us are only scratching the surface of what they can actually do. Beyond the basics of calling, texting, and scrolling social media, today’s phones are packed with clever, creative, and downright impressive features that most people never discover.

From privacy screens that hide your display from nosy neighbours to tap gestures on the back of your iPhone, modern phones are brimming with innovations that feel almost like magic once you find them. Some of these features are buried in settings menus, others require specific hardware, and a few are so niche they’re specific to certain countries — but they’re all genuinely cool.

In this article, we’re counting down 10 of the most fascinating and underrated smartphone features of today. Whether you’re an Android enthusiast, an iPhone loyalist, or just someone curious about what your device can really do, this list has something for everyone. Let’s dive in.

1. Built-In Privacy Display

Ever worried about someone sneaking a glance at your screen on the subway or in a café? Some smartphones now come with a built-in privacy display that you can toggle on and off — no screen protector required.

Samsung’s Galaxy S26 Ultra is one of the first phones to feature this technology natively. With a tap in the quick settings panel, the display narrows its viewing angle so that only the person looking directly at the screen can see what’s on it. To anyone at a side angle, the screen appears dark or blurry.

This is especially handy for business travellers, people who handle sensitive data on the go, or anyone who simply values their privacy in public spaces. It’s one of those features that sounds small on paper but becomes incredibly useful in daily life — and it’s only going to become more common as display technology improves.

📱 Available on: Samsung Galaxy S26 Ultra

2. Now Playing

We’ve all had that experience: a song plays in the background at a restaurant or a store, and you just can’t remember the name of it. Google Pixel phones have solved this problem in the most seamless way imaginable — a feature called Now Playing.

Now Playing works entirely on-device, using the Pixel’s local machine learning to continuously — and silently — listen for music in the environment. When it recognises a song, the title and artist appear quietly on your lock screen. No internet connection needed, no tapping a button, no opening an app. It just happens.

The feature is privacy-friendly since all processing happens on the device, and it maintains a history of every song it’s identified. It’s one of those small quality-of-life improvements that seems almost too convenient — and once you’ve used it, going back to a phone without it feels like a real step backwards.

📱 Available on: Google Pixel devices

3. Glyph Interface

Nothing Phone has taken a completely different approach to smartphone design — and it shows. The Glyph Interface is a series of white LED strips on the back of the phone that light up in customisable patterns for notifications, calls, charging, and more.

Think of it as a notification system for the back of your phone. You can set specific Glyph patterns for individual contacts, so a glance at the back of your face-down phone tells you exactly who’s calling without you needing to flip it over. The lights also pulse rhythmically when music is playing and fill up progressively to show charging status.

It’s a clever blend of design and functionality that makes Nothing Phone genuinely unique in a sea of look-alike smartphones. It challenges the assumption that all the important interactions with your phone have to happen on the screen — and for many users, it’s the gimmick single biggest reason they would choose a Nothing Phone.

📱 Available on: Nothing Phone 

4. iPhone as a SUICA Card in Japan

You can use your iPhone as a Suica card in Japan— the contactless transit pass that lets you ride trains, buses, and even buy things at convenience stores across the country. There’s no need to buy a SUICA, PASMO or ICOCA card anymore on your next trip to Japan. This feature however, is not available for android phones. 

What makes this especially impressive is that it works even when your iPhone is out of battery. Apple has built in a reserve power mode specifically for Express Transit cards like Suica, meaning the NFC chip remains functional for a period after the battery dies. You can tap your phone on the reader and walk through the gate, even with a completely dead screen.

For anyone visiting or living in Japan, this is an absolute game-changer. It removes the need to carry a physical transit card altogether, and the integration with the Wallet app makes topping up your balance seamless. It’s a glimpse into what a truly integrated, phone-first transit experience could look like worldwide.

📱 Available only on Apple iPhone from iPhone 8 to newer iPhone 17 series

5. Leica Control Ring

The Leica Leitz Phone is one of the most unique smartphones ever made in 2025 — a collaboration between Leica and Xiaomi that is unapologetically built around photography. And its standout hardware feature is a physical camera ring that wraps around the back of the phone, designed to mimic the tactile feel of a real Leica lens.

The ring isn’t just decorative. Rotating it adjusts settings like zoom, aperture, and shutter speed depending on your shooting mode — and it does so with precise haptic feedback that clicks and resists just like a proper mechanical lens ring. For anyone who has ever used a real Leica camera, the sensation is immediately familiar and deeply satisfying.

It’s a rare example of a phone that doesn’t try to hide its camera ambitions behind a glass slab — instead, it leans fully into the physical, tactile experience of photography. In a world where every flagship phone looks essentially identical, the Leitz Phone’s camera ring is a bold, brilliant statement that hardware design still has room to surprise us.

📱 Available on: Leica Leitz Phone Powered by Xiaomi

6. Call Screening

Spam calls are the bane of modern life — but Google Pixel and iPhone users have a secret weapon: Call Screening. When an unknown number calls, you can tap “Screen Call” and Google Assistant immediately answers on your behalf, asking the caller to state their name and reason for calling.

You watch the conversation transcribed in real time on your screen. If it’s a legitimate call, you can jump in and take it. If it’s a spam bot or an unwanted sales pitch, you can decline without having said a word — or even reveal that you were ever there. The whole thing happens in seconds, and it’s remarkably effective.

Google has also added a “Direct My Call” feature that transcribes automated phone menus as they play, so you can see your options in text and tap to select them — no more listening to a long list of options and forgetting what number one was. It’s genuinely one of the best quality-of-life phone features in years.

📱 Available on: Google Pixel and iPhone devices

7. AI Image to Videos

HONOR has quietly become one of the most exciting names in AI-powered photography and one of its most impressive features and tricks is the ability to turn a completely still photo into a short, animated video using AI. Pick any still image from your gallery, tap the feature, and the phone’s AI engine brings it to life with realistic motion. 

The results are surprisingly convincing. Hair sways gently in a breeze, water ripples, clouds drift across the sky, your pet moving like it was a captured video, all generated entirely from a single static image. It’s the kind of feature that genuinely makes you want to own the device when they see it for the first time. 

📱 Available on HONOR 400 and HONOR 400 Pro 

8. Samsung DeX

What if your phone could also be your computer? Samsung DeX turns that idea into reality. Connect a compatible Samsung Galaxy phone to an external monitor via USB-C, pair a Bluetooth keyboard and mouse, and your phone transforms into a full desktop computing experience.

DeX presents a traditional desktop interface — taskbar, resizable windows, file manager — powered entirely by your phone’s processor. You can browse the web, edit documents, use apps, and even run multiple windows side by side. For light computing tasks, it’s genuinely capable. For someone who travels frequently, it could replace a laptop entirely.

Samsung has also made wireless DeX possible with some Smart TVs, letting you mirror a desktop experience to a big screen without any cables at all. It’s the closest thing we’ve seen to the long-promised “your phone is your only computer” future — and for a growing number of power users, that future is already here.

📱 Available on: Samsung Galaxy S and Samsung Galaxy Z series

9. Knuckle Gesture

Source: HONOR

Most people take screenshots by pressing two buttons simultaneously — a bit awkward, especially one-handed. Huawei came up with a far more elegant solution: knock on your screen twice with your knuckle, and it takes a screenshot instantly.

But the clever part doesn’t stop there. On Honor devices like Honor X7d, draw a shape with your knuckle — a circle, a square, or even a letter — and the phone captures just that region of the screen as a custom screenshot. This means you can grab exactly the content you want without cropping afterwards.

It also works for screen recording: a double-knuckle tap starts and stops recording. The feature sounds gimmicky when you first hear about it, but users who have it swear they miss it every time they switch to a phone that doesn’t. It’s a small ergonomic improvement that makes a genuinely big difference in everyday use.

📱 Available on: HONOR and Huawei selected devices. 

10. Back Tap on iPhone

Hidden inside the Accessibility settings of every modern iPhone is a feature called Back Tap — and it might be the most underrated iPhone feature that exists. It lets you assign actions to a double or triple tap on the back of your iPhone, using the device’s accelerometer to detect the gesture.

The list of things you can trigger is extensive: take a screenshot, open Control Centre, launch Spotlight search, scroll up or down, activate Siri, mute your phone, and even trigger any Shortcut you’ve built. It essentially turns the back of your iPhone into a customisable button.

Once you set it up, the muscle memory develops quickly — a double tap on the back to screenshot becomes second nature within days. It’s a feature that Apple added quietly, buried in Accessibility, and most iPhone users have no idea it exists. Try it once and it’s hard to imagine going without it.

📱 Available on: iPhone 8 and later, iOS 14+

Conclusion

Modern smartphones are extraordinary pieces of technology — and yet most of us use only a tiny fraction of what they’re capable of. From Glyph lights that dance to your music, to a phone that works as a transit pass even when the battery is dead, to an AI that silently identifies every song playing around you, the features on this list are a reminder of just how far mobile technology has come.

The best part? Most of these features cost nothing extra. They’re already sitting in your phone, waiting to be discovered. So whether you’re an iPhone user who’s never tried Back Tap, a Pixel owner who hasn’t set up Call Screening, or a Samsung fan who’s never plugged into DeX — now’s the time to explore.

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