Apple's annual fall event.
This year, 2025, the long-awaited iPhone 17 series and the latest OS, iOS 26, have been released.
It has undergone significant evolution in all aspects, including a refined design, new AI-driven experiences, improved battery efficiency, and enhanced privacy protection.
This time in particular, both the "exclusive features that can only be used on the iPhone 17" and the "improvements to iOS 26 that can be enjoyed even on older models" are hot topics.
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1. iOS 26 Overview: A Smarter, More Intuitive Experience
Apple's theme is " An OS that cares for you ."
With iOS 26, AI is more deeply integrated throughout your iPhone, learning as you use it to give you the best experience possible.
● Smarter "Siri 2.0"
It has evolved significantly from the previous Siri and is equipped with Apple's own generative AI .
Not only can you have natural conversations, but you can also execute commands across apps.
for example,
"Check your schedule for tomorrow, and if it's going to rain, set your alarm 30 minutes earlier."
Just speak to it and it will automatically respond by linking the calendar, weather, and clock.
Siri's tone of voice has also become more natural, providing a more human-like conversational experience.
Another key feature is that it learns users' usage trends and makes appropriate suggestions based on time of day and location.
● Integration of AI functions with "Apple Intelligence"
The biggest highlight of iOS 26 is Apple's new AI system, **Apple Intelligence**.
Its biggest feature is that it completes all processing within the device , rather than using cloud AI like ChatGPT.
This means:
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Email and message summaries
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Automatic image editing (removing background, highlighting subject, etc.)
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Tasks like auto-reply suggestions can be performed quickly and safely.
In keeping with Apple's philosophy of prioritizing privacy, no personal data is sent to external servers.
This is an AI function that truly achieves both intelligence and peace of mind .
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● Smart organization of "Notification Center"
Too many notifications and missing important information...
This is a smart notification management feature enhanced in iOS 26.
AI analyzes the notification content,
"Highly urgent"
"You can read it later."
It will automatically classify.
In addition, integration with the focus mode has been strengthened, allowing notifications to be automatically switched for each mode, such as work, study, or rest.
It provides a stress-free smartphone experience.
● AI automatic organization function of the "Photos" app
The photo app is now even more convenient.
The AI recognizes subjects, locations, and events, and automatically categorizes them into categories such as "travel," "family," and "pets."
Search accuracy has also improved dramatically.
"Last year's cherry blossoms," "A photo of me wearing red clothes," "The day I went to a cafe with a friend"
You can instantly find even vague keywords such as:
Photo editing tools have also been enhanced, allowing you to remove backgrounds with one tap, making it ideal for creating images to post on social media.
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2. Introducing new features exclusive to the iPhone 17
iOS 26 can be used on older models, but it also has a number of special features that are only available on the iPhone 17 series .
This is made possible through collaboration with the latest hardware, and the difference in performance is clearly noticeable at the user experience level.
● Optimized AI processing with the "A19 Pro chip"
The new A19 Pro chip delivers approximately 40% improved AI computing performance over the previous generation.
It can smoothly handle heavy tasks such as real-time translation, image generation, and video editing.
In actual use, the processing time for photo editing and automatic color correction of videos has been significantly reduced.
It also generates less heat and consumes less battery power.
This makes the iPhone 17 even more complete as a "smartphone for the AI era."
● "Adaptive Display" function
The iPhone 17 automatically detects the ambient light and content, and instantly optimizes brightness, color temperature, and refresh rate .
It is easy to see even outdoors, and at night it switches to a tone that is gentle on the eyes, so it is less tiring to use for long periods of time.
You can enjoy more realistic displays when watching movies or playing games.
● "Smart Charging 2.0"
A new system introduced to extend battery life.
The AI learns the user's daily rhythm and creates the optimal charging schedule, taking into account sleep and standby times.
for example,
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Pause at 80% while sleeping
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Detailed controls such as fully charging the battery just before you wake up are automatically performed to prevent battery deterioration.
This is a very practical evolution for users who want to use it for a long time.
● "Device Linkage Mode"
Simply bring your iPhone 17 close to your Mac or iPad and screen sharing, data transfer, and tethering connection will automatically begin.
No cables, no setup required. The barriers between your Apple devices have virtually disappeared.
This is a useful feature that greatly improves work efficiency, especially for those who edit videos or create documents.
● "Spatial video shooting" function (Pro series only)
New feature exclusive to iPhone 17 Pro/Pro Max.
You can shoot spatial videos that can be played back in 3D on spatial devices such as Vision Pro.
It even reproduces the depth of the subject, making it possible to record trips or your child's growth as if you were there.
With camera performance significantly improved, even average users can easily enjoy cinematic footage.
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3. Impressions after actually using it | The lightness of operation and the AI experience are outstanding
The first thing I noticed after using it for a few days was the smoothness of its operation and its response speed .
All operations, such as switching apps, launching the camera, and voice input, can be completed in an instant.
Siri 2.0 is particularly impressive, as it naturally understands you when you speak to it in a casual conversation.
It can also handle vague instructions such as "Check the weather forecast and tell me if I should bring an umbrella."
In addition, "Apple Intelligence"'s automatic reply suggestions and sentence summaries are highly accurate.
It has greatly contributed to saving time on work and responding to messages.
You can experience this to some extent with the older iPhone 15 and 16 models, but the iPhone 17's operating speed and AI accuracy are overwhelming .
4. Important points to note after updating
● Temporary increase in battery consumption
Immediately after updating, data optimization will be performed in the background, which may temporarily cause the battery to drain faster.
Don't worry, it will subside in a few days.
● Some apps are not compatible
Some apps, such as financial and transportation apps, may not be compatible with iOS 26.
We recommend checking the latest version on the App Store before updating.
● Ensuring storage capacity
Approximately 10GB of free space is required to install iOS 26.
Please back up your photos and videos to iCloud or external storage before proceeding.
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5. Practical Settings and Customization Techniques
The appeal of iOS 26 is that it can be customized to your liking.
You can make use of the device more comfortably by configuring the following settings.
Use the "Lock Screen Widget"
You can check the weather, schedule, battery level, and more at a glance, which is convenient even while commuting or working.
"Focus Mode x Notification Settings"
You can control notifications for different situations, such as work, study, and sleep.
By only notifying you about the apps you need, you can focus better.
Turn on "Smart Charge 2.0"
Go to Settings > Battery > Optimized Charging to enable it.
Prevents battery deterioration and allows for long-term, comfortable use.
"Personalize Siri"
By teaching Siri to remember your daily habits, you can automate tasks like reading out the morning weather and suggesting routes to your commute.
Summary: iPhone 17 x iOS 26 is a smartphone that gets smarter the more you use it
The iPhone 17 and iOS 26 are updates perfect for the AI era.
Smartphones have evolved from being merely tools to being "devices that understand and support your life."
Even if you are using an older model, you can experience many new features by simply updating to iOS 26.
However, if you want to take full advantage of the accuracy of AI processing and battery management, we recommend the iPhone 17 series .
Apple's evolution never stops.
If you want to take your smartphone experience to the next level, now is the perfect time.
