As smartphone technology continues to evolve, each new iPhone release garners immense attention. Recently, a rumor about the iPhone 17 Air, set to launch in September 2025, has sparked widespread discussion: this ultra-slim iPhone might ditch the physical SIM card slot and fully adopt eSIM (embedded SIM) technology. This news is particularly significant for the Chinese market, where the China variant of iPhones has long retained physical SIM slots to meet local operator requirements. So, how credible is this rumor? And why has the adoption of eSIM in China been so slow over the years? Let’s dive in.
The Rumor: iPhone 17 Air to Drop Physical SIM Slot
According to multiple leaks, Apple plans to unveil the iPhone 17 series in September 2025, with the iPhone 17 Air positioned as its thinnest model yet. Reports suggest this device will have a thickness of just 5.5mm—67% of the current iPhone 16 Pro’s thickness—approaching the slimness of an iPad Pro. To achieve this, Apple may make bold design changes, including removing the physical SIM card slot and adopting eSIM technology. This move could free up approximately 3.2 cubic centimeters of internal space (enough to add 50mAh of battery capacity) and further reduce the device’s weight, aligning with the “Air” branding.
For the Chinese market, this rumor is particularly noteworthy. Apple already eliminated the physical SIM slot in the U.S. version of the iPhone 14 series in 2022, transitioning to an eSIM-only design. However, the China variant has consistently retained dual physical SIM slots to cater to local user habits and operator demands. If the iPhone 17 Air China variant adopts eSIM, it would mark a significant shift in Apple’s strategy for the region.
Analyzing the Rumor’s Credibility
From a technical perspective, the likelihood of the iPhone 17 Air supporting eSIM is quite high. Apple has been a pioneer in eSIM technology, starting with the Apple Watch Series 3 in 2017 and introducing dual-SIM functionality (one physical SIM + one eSIM) on the iPhone XS/XR in 2018. The U.S. iPhone’s transition to eSIM-only has proven that the technology can meet mainstream market needs. Additionally, slimness is a key trend in smartphone design, and removing the physical SIM slot not only optimizes internal space but also enhances the device’s water resistance and durability—perfectly aligning with the iPhone 17 Air’s goals.
In the Chinese market, however, the rumor’s feasibility hinges on operator support. Recent reports indicate that China Unicom has launched an “iPhone eSIM website” and is testing eSIM functionality for iPhones, potentially paving the way for the iPhone 17 Air’s SIM-less design. Furthermore, Li Nan, former president of Meizu, stated on social media that “eSIM remote activation in China is promising,” suggesting Apple could be a driving force behind this change. These developments hint that Apple is actively negotiating with Chinese operators to overcome longstanding barriers.
On the flip side, several challenges could prevent this rumor from materializing. In 2023, China’s Ministry of Industry and Information Technology (MIIT) updated its Telecommunications Equipment Network Access Management Measures, mandating that smartphones retain physical SIM slots, with eSIM restricted to wearables like smartwatches. This policy stems from concerns over virtual SIM security—data from China’s Ministry of Public Security in 2024 shows a 37% year-on-year increase in fraud cases involving eSIM remote activation. For Apple to implement an eSIM-only iPhone 17 Air in China, it would need to secure regulatory approval, which remains a significant hurdle.
Overall, while the iPhone 17 Air China variant adopting eSIM is technically feasible, its success depends on policy changes and market readiness. The outcome will likely hinge on Apple’s ability to negotiate with regulators and the willingness of Chinese operators to cooperate.
Why Has eSIM Adoption in China Been So Slow?
Despite eSIM technology being mature since the early 2010s and widely adopted in over 50 countries, its rollout in China has been notably sluggish. The reasons for this delay are multifaceted:
Regulatory Oversight and Data Security Concerns
China maintains strict oversight of its telecommunications sector, particularly regarding user data security. eSIM’s “remote activation” feature requires data to be transmitted via the cloud, increasing the risk of interception or leaks. Moreover, if phone manufacturers like Apple control eSIM activation, operators lose some control over user data, which conflicts with China’s emphasis on data sovereignty. As a result, the MIIT has restricted eSIM use in smartphones, limiting it to lower-risk devices like smartwatches.
Operator Interests and System Upgrade Costs
For operators, eSIM adoption threatens traditional revenue streams. Physical SIM card sales and activation processes are key touchpoints for customer engagement, but eSIM allows users to switch carriers online, increasing churn rates (studies show eSIM users have an 18% higher annual churn rate than physical SIM users). Additionally, supporting eSIM requires overhauling billing and number management systems, which is costly. For instance, China Unicom reportedly invested over 200 million RMB in 2024 for IT system upgrades during its eSIM pilot program—a significant expense for operators.
User Habits and Generational Differences
User habits in China also play a role in eSIM’s slow adoption. Older demographics, in particular, are less comfortable with a “SIM-less” experience. A 2024 survey found that 73% of users aged 55 and above prefer physical SIM cards, citing their perceived reliability. This generational gap has made eSIM a “well-received but underused” technology in China.
Despite these challenges, progress is being made. China’s three major operators began eSIM trials in 2018, and in 2021, China Telecom partnered with Huawei to launch eSIM-enabled smart cars. More recently, China Unicom started testing eSIM for iPhones. These steps suggest that eSIM’s widespread adoption in China may be on the horizon, especially with pressure from global players like Apple.
Conclusion
Whether the iPhone 17 Air China variant will support eSIM in September 2025 remains an open question. From a technical and strategic standpoint, the rumor seems plausible, but regulatory hurdles and market acceptance are key variables. Meanwhile, the slow adoption of eSIM in China reflects a mix of technical, cost, and security concerns. If Apple successfully pushes for an eSIM-only iPhone in China, it could mark a turning point for eSIM adoption in the country’s smartphone market. Are you looking forward to this potential change?
