AI Writing Tools Face-Off: iPhone vs Galaxy vs Pixel — Which Phone Delivers the Best Results?

AI Writing Tools Tested: iPhone vs Galaxy vs Pixel — Which One Wins?

Phone makers have been pushing AI writing tools as a way to make your messages, emails, and texts sharper and more focused. The promise: write with the exact tone you want, effortlessly. But how well do these AI features actually perform on the leading smartphones? To answer that, I tested the AI writing tools on the iPhone 15 Pro, Google Pixel 9, and Samsung Galaxy S25 Plus across five writing scenarios.

Both Apple and Samsung offer dedicated writing tools for proofreading, rephrasing, and formatting. Google’s Pixel relies on its Gemini assistant for similar tasks, though these features aren’t as clearly labeled. Each device used the latest software available at testing time.

Test 1: Making Text Sound More Casual

I started with a 215-word, stiff, formal note summarizing Disneyland’s 70-year history. The goal was to lighten the tone to something more casual. Apple and Samsung have specific options for casual tone, while on Pixel I used Gemini to make the text more informal.

All three AI tools turned the first sentence into a question, but the approaches varied. Samsung and Google swapped formal words for casual synonyms — sometimes well, sometimes awkwardly. For example, Pixel’s AI threw in slang like “glow-ups” for renovations and “still chilling” for “remain in place,” which felt forced. Apple’s tool simplified language by replacing complex words with clearer alternatives, like changing “subsequent” to “over the years.” Using Apple’s “Describe Your Change” feature kept some original nuances and avoided turning the first sentence into a question.

Winner: Apple’s AI struck a nice balance, easing the tone without losing the original style. Samsung did well but sometimes went too far, while Pixel’s casual rewrite felt unnatural.

Test 2: Making an Email Sound More Professional

Next, I tested the AI tools’ ability to polish an informal email into a professional message a manager might send. This is where AI typically shines, given clear guidelines for business communication.

All three phones cleaned up the email effectively, changing “Guys” to “Team” and refining word choice for a formal tone. Apple’s AI broke out points into distinct paragraphs, enhancing clarity. Pixel’s AI shortened the email by removing unnecessary sentences and added a helpful “[DATE]” placeholder after the meeting time.

Winner: Google’s Pixel produced the most concise and clear email, though all three delivered solid results.

Test 3: Formatting Notes

When jotting down notes quickly, clarity and organization often take a back seat. I tested how well the AI tools helped format unstructured notes about iOS 26 features.

Apple’s “List” feature only added bullet points where line breaks existed, which wasn’t very useful. The “Key Point” option grouped some features but missed a few important ones like FaceTime and Safari updates. The “Table” option worked better by splitting notes into columns, but it’s not intuitive.

Pixel’s Gemini added an introductory header and turned bullet points into titled items with descriptions. Samsung’s Galaxy AI cleaned up and enhanced notes better than the others.

Winner: Samsung’s AI improved the notes noticeably, with Pixel’s Gemini close behind. Apple’s tools felt inconsistent for this task.

Test 4: Proofreading

I created a fake news article riddled with spelling mistakes, grammar slips, and run-on sentences to see how each AI handled proofreading.

All three caught most spelling errors and basic grammar issues. Apple’s AI missed a couple of mistakes and a stray quotation mark. None of the tools corrected run-on sentences or duplicated names in a CEO list.

Samsung’s AI displayed corrections clearly, making it easier to spot changes. Google’s AI in Google Keep caught more errors overall.

Winner: Google’s proofreading was the most thorough. Samsung’s tool showed edits clearly, while Apple lagged behind both.

Test 5: Smart Replies in Emails

This test compared Gmail’s smart reply feature on Pixel with Apple Mail’s smart replies on iPhone. Gmail’s smart replies are currently limited to Google Workspace accounts, which I had access to.

Gmail offered three reply options addressing attendance and transportation preferences in a convention invitation email. However, the reply text was partially cut off, making it hard to see the full response.

Apple Mail showed smart replies clearly above the keyboard after tapping reply. It provided options to confirm attendance or decline, then a follow-up for transportation preferences. However, Apple Mail didn’t suggest an option for entree preferences, requiring manual typing.

Winner: Google’s smart replies covered more of the email’s questions, even if the display was less user-friendly. Apple’s layout was easier to read but less comprehensive.

Overall Results: Which AI Writing Tool Comes Out on Top?

Gemini AI on Google’s Pixel led in three out of five categories and nearly matched Samsung for note formatting. Its weakest spot was casual tone rewriting, which felt forced. Samsung’s Galaxy AI came close behind, especially benefiting from Gmail’s smart reply integration.

Apple’s AI delivered solid tone adjustments, especially when using the “Describe Your Change” feature, but its note formatting and proofreading were inconsistent compared to its competitors.

For writers looking to speed up editing, tone shifts, and email polishing, Google’s Gemini offers the most consistent performance. Samsung’s AI is a strong alternative, while Apple’s tools may require more hands-on tweaking to get the best results.

For those interested in enhancing writing with AI, exploring training resources can help you get the most out of these tools. Check out practical AI writing courses to sharpen your skills and boost productivity.