Xiaofeng Liu, PhD

Tech and Life


Writing

Thinking Technology

Meet iPhone 4S for the First Time

By Xiaofeng Liu published on March 29, 2010

The size of the iPhone 4S is basically the same as the iPhone 4, with only a slight increase in weight. The most noticeable change is the antenna’s metal ring—the familiar “black lines” have become four, likely hinting at the "dual antenna" Apple mentioned. The side button has shifted slightly, which means older iPhone 4 cases may not fit the 4S perfectly. Pre-orders come with a variety of accessories, and the overall pricing feels reasonable.

Compared to other smartphones, the biggest highlight of the iPhone 4S is still its Retina display. It’s noticeably sharper—something you can actually feel in daily use. That clarity was the main reason I finally decided to switch from Android. Of course, the headline feature is Siri, the virtual assistant people either love or love to complain about. I spent some time chatting with her that night. First impressions? Her error correction is solid, and my clumsy English didn’t seem entirely useless.

One particularly useful Siri feature is dictation. When you’re looking up a word in a dictionary, you can simply speak it, tap “Done,” and the text appears—especially handy during a workout or while your hands are occupied. Siri can also open websites when you say “Open XXX.com” or “Search XXX.” She’ll launch Safari and get right to it. Voice navigation doesn’t extend past that point on the webpage, but it’s impressive enough.

One shortcoming I noticed: Siri can’t yet open installed apps like “Calendar” or “Notes” with a command like “Open Calendar.” You’ll still need to tap into those manually. On the bright side, Siri doesn’t demand perfect English. In most cases, saying key phrases is enough—things like “Timer, one minute,” “Weather forecast,” “Search XXX,” or “Call XXX.” That’s a small win for non-native speakers.

Recent tests show Siri is a bit of a power drain. If you rely on her for most daily operations, you’ll likely need to charge your phone by day’s end. Another quirky behavior: if the network connection is unstable, Siri often won’t work at all. It makes you wonder—maybe that old joke about “a human operator behind every Siri” has some truth to it after all.

A nostalgic look at the iPhone 4S, where Retina display clarity and Siri’s early charm redefined the smartphone experience. From practical dictation to quirky limitations, this reflection captures a moment when smart assistants first found their voice—literally.

Read More

California
Magical colors in the Alabama Hills in early winter
The Alabama Hills shimmered with gold by day and stars by night. These ancient, cinematic rocks offered surreal beauty, vivid contrasts, and quiet moments that linger far beyond the lens and journey.
Death Valley
An Alien World: Golden Canyon in Death Valley
Golden Canyon’s vivid landscapes, layered rocks, and haunting silence offer a surreal journey through Death Valley’s geological past—an unforgettable 8-kilometer hike beneath a blazing sun and endless sky.
Death Valley
The Sand Dunes below Sea Level
A golden afternoon in Death Canyon reveals the serene beauty of Mosaic Canyon and Mesquite Flat Sand Dunes—where shifting light, delicate textures, and timeless landscapes awaken awe in every step.