There is no iPhone 9 because Apple skipped it on purpose. In 2017 the company jumped from the iPhone 8 straight to the iPhone X to mark the iPhone's 10th anniversary, signal a radical redesign, and create a marketing event out of the number itself. The iPhone X is the iPhone 10. There was never a separate iPhone 9 model, and the second-generation iPhone SE (2020) is the closest thing Apple ever shipped to one.
The short answer
Apple went straight from the iPhone 8 to the iPhone X (Roman numeral for 10) in September 2017 to celebrate ten years of the iPhone, mark its biggest redesign since 2010 (Face ID, edge-to-edge OLED, no home button), and build buzz from the missing number. The X is the iPhone 10. The 2020 iPhone SE filled the gap in practice.
Apple has sold more than two billion iPhones since the device debuted in 2007, one of the most successful product lines in consumer electronics history. Across nearly two decades it has shipped dozens of models, yet a quick scan of the lineup still raises the same question. Below we unpack the three real reasons behind the skip, explain what happened to the "missing" model, and point you to the refurbished iPhones that carry those designs forward at a fraction of their launch price.
Table of contents
- Why did Apple skip the iPhone 9?
- What happened to the iPhone 10?
- Is the iPhone SE the "real" iPhone 9?
- Other tech companies that skipped a number
- A brief history of Apple's iPhone naming
- Takeaway
- FAQ
Why did Apple skip the iPhone 9?
Apple's decision to skip the iPhone 9 and jump straight from the iPhone 8 to the iPhone X came down to three factors, all of them deliberate.
1. It was the iPhone's 10th anniversary
The original iPhone launched in June 2007. By 2017, Apple was approaching a milestone it could not afford to downplay: ten years of the device that reshaped the mobile industry. Rather than release a routine "iPhone 9," the company chose the Roman numeral X (which stands for 10) to mark the occasion. The naming was a celebration, not just a label.
2. To signal a radical redesign
The iPhone X was not an incremental update. It was the most dramatic iPhone redesign since the iPhone 4 in 2010. Apple removed the home button, introduced Face ID, and adopted an edge-to-edge OLED display. The phone also broke new ground as the first iPhone to cross the $1,000 price mark.
By releasing the iPhone 8 and iPhone 8 Plus alongside the iPhone X, Apple framed the lineup as "good versus best" rather than "old versus new." The strategy made the premium iPhone X feel like a generational leap, exactly the message a number jump from 8 to 10 reinforces.
3. It was a stronger marketing move
Skipping a number generates buzz on its own. The gap in the sequence drew attention and media coverage, which amplified public interest in the iPhone X launch. There was also a cultural dimension: in Japan, the number 9 can carry negative connotations because its pronunciation (ku) sounds like the word for suffering. While Apple has never confirmed this played a role, the Roman numeral X sidestepped the issue entirely.
Beyond superstition, the letter X carries symbolic weight. In mathematics, science, and popular culture, it represents the unknown, transformation, and discovery. That symbolism aligned neatly with a product Apple positioned as the future of the smartphone.
What happened to the iPhone 10?
The iPhone 10 is the iPhone X: they are the same device. Apple used the Roman numeral X, which stands for 10, as the official name. The iPhone X was announced in September 2017 alongside the iPhone 8 and 8 Plus, then shipped in November of that year. It introduced the design language (Face ID, gesture navigation, and a notched display) that would define every mainline iPhone through the iPhone 14 series.
Apple discontinued the iPhone X in September 2018 when the iPhone XS and iPhone XR took its place. It launched at $999 new, so the "iPhone 10" was also the first iPhone to cross the $1,000 line once you added storage. Today the same phone sells refurbished for a small fraction of that, with the cheapest unlocked units on RefurbMe often listed by Back Market in Excellent condition. Compare current availability below:
Learn more: Is the iPhone X Worth Buying in 2026?
Is the iPhone SE the "real" iPhone 9?
When Apple announced the second-generation iPhone SE in April 2020, many observers called it the iPhone 9 in all but name. The device was built on the iPhone 8 chassis, retained the home button and Touch ID, and launched at $399, a price point that fit squarely between the iPhone 8 and the premium iPhone X series.
Multiple reports suggested that Apple internally considered the name "iPhone 9" before settling on iPhone SE to keep the device within its established budget lineup. Whether or not the label was ever official, the second-generation SE filled the practical gap the missing iPhone 9 left behind: a modern, affordable iPhone that carried forward the pre-X design.
Learn more: iPhone X vs. iPhone XR: Which One Is Better and Why?
Other tech companies that skipped a number
Apple is not the only company to jump ahead in its product numbering. Here are a few notable examples:
- Microsoft, Windows 9: Microsoft went from Windows 8.1 directly to Windows 10 in 2015. The official reason was to signal a clean break from the poorly received Windows 8. A widely cited secondary explanation is that legacy code in many third-party applications checked for "Windows 9" to detect Windows 95 and 98, which could have caused compatibility problems.
- Samsung, Galaxy Note 6: Samsung skipped the Galaxy Note 6 and released the Galaxy Note 7 in 2016 to align its Note numbering with the Galaxy S7 that launched earlier the same year.
- OnePlus, OnePlus 4: OnePlus went from the OnePlus 3T to the OnePlus 5, skipping the number 4 because it is considered unlucky in Chinese culture (the word for four sounds like the word for death).
In each case, the skip was strategic rather than accidental, much like Apple's decision with the iPhone 9.
A brief history of Apple's iPhone naming
Understanding how Apple names its phones makes the iPhone 9 gap less surprising. The company has never been rigid about sequential numbers:
- iPhone (2007): No number at all.
- iPhone 3G (2008): Named after its 3G network support, not because it was the third model. There was never an "iPhone 2."
- iPhone 3GS (2009): The "S" stood for speed, starting the S-suffix tradition.
- iPhone 4 through iPhone 8: Apple adopted sequential numbering from the fourth model onward, with S and Plus variants along the way.
- iPhone X (2017): The Roman numeral leap, skipping 9.
- iPhone XS, XR (2018): Letter-based variants of the X generation.
- iPhone 11 through iPhone 17 (2019 to 2025): A return to sequential numbering, now with Pro and Pro Max tiers.
The pattern shows that Apple treats product names as branding tools rather than strict version counters. When a name serves the story the company wants to tell, it takes priority over numerical logic.
Learn more: How Long Does Apple Support iPhones?
Takeaway
In short, there is no iPhone 9 because Apple made a deliberate choice to skip it:
- The iPhone X launched in 2017 to celebrate the iPhone's 10th anniversary, and the Roman numeral X underscored that milestone.
- The iPhone X represented a radical redesign (Face ID, an edge-to-edge OLED screen, and the removal of the home button) that warranted a bigger naming jump than a single digit.
- The skip was a savvy marketing move that generated buzz, avoided cultural sensitivities around the number 9, and positioned the iPhone X as a premium, transformative product.
- The second-generation iPhone SE (2020) is widely regarded as the spiritual successor that filled the iPhone 9 gap in practice.
If you are in the market for an iPhone, many of these older models are no longer sold new but remain excellent choices when purchased refurbished. A refurbished iPhone is professionally inspected, tested, and restored before resale, so you get reliable performance at a fraction of the original price. You can compare deals from trusted sellers on RefurbMe, all in one place.
Compare and get your iPhone at the best price now
FAQ
For deeper reading, see iPhone X vs. iPhone XR: Which One Is Better and Why? and the iPhone X vs. iPhone 11, iPhone 12, and iPhone 13 comparisons.
Last updated: Jun 10, 2026 · First published: Nov 21, 2023
