ZhiXing Column · 2025-06-26

Startup Commentary”How has the ubiquitous Bluetooth technology become a “familiar stranger”?”

Read More《随处可见的蓝牙技术,怎么成了“熟悉的陌生人”》

Positive Comments: The Continuous Evolution of Bluetooth Standards Demonstrates Technological Vitality, and Multi – scenario Coverage Lays the Foundation for Ecosystem Development

The Bluetooth Special Interest Group (SIG) launched the Bluetooth 6.1 standard in May 2025. Although it was defined as a “security patch,” the underlying logic of its technological evolution is still worthy of recognition. Looking at the trajectory of standard iterations over the past decade, Bluetooth technology has not stagnated. Instead, it has demonstrated strong technological vitality through continuous updates.

Firstly, the rapid response to security vulnerabilities reflects the emphasis on user privacy. After Bluetooth 6.0 raised privacy risks due to its enhanced positioning capabilities, SIG launched version 6.1 in just eight months, plugging the third – party tracking vulnerability through the “Resolvable Random Private Address Technology.” This rapid “problem – repair” closed – loop is not common in the field of technical standards. Compared with some technical standards where vulnerabilities are exposed for a long time due to lengthy processes, Bluetooth’s emergency response ability is worthy of recognition. This not only protects user rights and interests but also maintains the credibility of Bluetooth technology. After all, in the context of the explosive growth of Internet of Things (IoT) devices, privacy and security have become the core prerequisites for a technology to be widely accepted.

Secondly, the technological reserves for multi – scenario coverage lay the foundation for future ecosystem expansion. From the Mesh network of Bluetooth 5.0 (supporting the interconnection of smart home devices), the direction – finding and positioning of Bluetooth 5.1 (indoor navigation), the multi – channel audio of Bluetooth 5.2 (TWS earphones), the medical device compatibility of Bluetooth 5.3 (health monitoring), the high – quality audio of Bluetooth 5.4 (music transmission), to the low – latency isochronous adaptation layer of Bluetooth 6.0 (game/video synchronization), the updates of Bluetooth standards have always penetrated into multiple fields such as consumer electronics, IoT, and medical health. Although this “wide – coverage” strategy has been criticized as “lacking a clear direction,” from another perspective, it is precisely the flexibility of technical standards to actively adjust to meet diverse needs. For example, the Bluetooth Mesh network has become one of the important protocols for the interconnection of smart home devices, and more than 300 million devices worldwide support this function. The application of Bluetooth Low Energy (BLE) in medical devices has promoted the popularization of wearable health monitoring devices. The implementation of these scenarios essentially depends on the continuous adaptation of Bluetooth standards to the needs of different fields.

Finally, the “soft compatibility” between technology and hardware lowers the threshold for the ecosystem. Different from technologies such as WiFi and 5G, which require hardware upgrades to support new standards, most updates of Bluetooth standards (such as the direction – finding function of Bluetooth 5.1 and the LE synchronous channel of Bluetooth 5.2) can be achieved through firmware upgrades. This model of “unchanged hardware, software iteration” greatly reduces the upgrade cost for terminal manufacturers. For example, the Qualcomm FastConnect 6900 module supports Bluetooth 5.2 through firmware updates. Old devices can obtain new functions without replacing hardware, which not only avoids resource waste but also extends the device lifecycle. For consumers, this means they can experience new technologies without frequently replacing devices, objectively enhancing the universality of Bluetooth technology.

Negative Comments: Confused Positioning and Lack of User Perception, Bluetooth Standards Are Facing the Crisis of “Technological Self – indulgence”

Despite the continuous evolution of Bluetooth technology, its “transparency” trend in the consumer market cannot be ignored. Users’ indifference to Bluetooth version numbers, manufacturers’ downplaying of standard promotion, and the rise of private protocols together reflect the deep – seated problems of Bluetooth standards in terms of positioning and implementation.

Firstly, the disconnection between technological updates and user experience has made the “version number” lose its market significance. From Bluetooth 5.0 to 6.1, the standard updates have been quite frequent, but users can hardly perceive the differences. For example, although Bluetooth 5.0 claims to “double the transmission rate,” in actual use, the improvement of latency and sound quality of TWS earphones depends more on the private protocols developed by manufacturers (such as Sony LDAC and Huawei L2HC). The “isochronous adaptation layer reducing latency” of Bluetooth 6.0 performs even worse than some private low – latency solutions of mobile phone manufacturers in gaming scenarios. This phenomenon of “standard upgrade but no significant improvement in experience” has directly led users to lose interest in “Bluetooth version numbers.” A survey shows that more than 70% of consumers do not actively check Bluetooth version information when buying TWS earphones or mobile phones, and nearly half of the users believe that “the Bluetooth version has no impact on the use experience.”

Secondly, the “want – it – all” market positioning has weakened the authority of the standards. Bluetooth standards attempt to cover multiple scenarios such as consumer electronics (e.g., earphones, mobile phones), professional IoT (e.g., industrial sensors, medical devices), and smart home (e.g., Mesh network) simultaneously. However, the requirements of different scenarios conflict with each other. For example, consumers of consumer electronics pursue low latency and high sound quality, while IoT devices need low power consumption and long – distance transmission. Medical devices require high compatibility and security, while smart home devices need stable multi – device interconnection. SIG’s strategy of “one standard to meet all needs” has instead led to the dispersion of functions. Bluetooth 5.3 optimized compatibility for medical devices but brought no perception to ordinary users. The direction – finding and positioning function of Bluetooth 5.1 has limited applications in the consumer – grade market (only a few high – end mobile phones support it) but occupies resources for standard updates. As a result of this “multi – scenario compromise,” the standards can neither form a clear selling point in the consumer market nor establish an irreplaceable advantage in the professional field.

Thirdly, the rise of private protocols has accelerated the marginalization of Bluetooth standards. Since Bluetooth standards cannot provide sufficient differentiated experiences, terminal manufacturers and chip manufacturers have turned to developing private protocols. For example, Apple’s AAC, Microsoft’s Swift Pair, Samsung’s Mono Sync, Qualcomm’s aptX Adaptive, and Huawei’s Bluetooth multi – device connection technology. These private protocols often provide better experiences for specific scenarios (such as low latency, lossless audio, multi – device interconnection), and manufacturers are more willing to promote them as key features (e.g., “Supports XX private protocol, with latency as low as 40ms”). In contrast, the “public – version” functions of Bluetooth standards have gradually become “basic capabilities” rather than “competitive advantages” due to the lack of uniqueness. More importantly, the fragmentation of private protocols may lead to the division of the Bluetooth ecosystem. The private protocols of different manufacturers are incompatible with each other. If users change device brands, they may need to re – adapt to the connection logic, which goes against the original intention of Bluetooth as a “unified connection standard.”

Suggestions for Entrepreneurs: Seize “User Perception” and “Scenario Focus” to Find Differentiated Opportunities in the Bluetooth Ecosystem

The “transparency” crisis of Bluetooth technology is essentially the result of the misalignment between technical standards and market demand. For entrepreneurs, this means both challenges and opportunities. The following three suggestions are for reference:

  1. Redefine the Value of Bluetooth with “User Perception” as the Core
    The lack of user perception of Bluetooth standards stems from the fact that the function upgrades do not address the core pain points of users. Entrepreneurs need to break free from the technical thinking of “version numbers” and focus on the actual needs of users. For example, for the “latency – sensitive” pain point of TWS earphone users, more precise latency optimization solutions (such as dynamically adjusting the encoding method) can be developed in combination with the isochronous adaptation layer technology of Bluetooth 6.0. For the “device interconnection stability” requirement of smart home users, a unified control protocol for cross – brand devices can be developed based on the Bluetooth Mesh network to solve the current problem of poor compatibility between devices of different manufacturers. The key is to transform the technical parameters of the “Bluetooth version” into user – perceivable experiences (such as “30% reduction in latency in game mode,” “No disconnection when interconnecting 10 devices”), so that users can truly feel the value of technological upgrades.

  2. Focus on Vertical Scenarios and Become an Expert in “Bluetooth +” Solutions
    The “multi – scenario dispersion” of Bluetooth standards precisely provides entrepreneurs with an opportunity for “single – point breakthrough.” Instead of aiming to cover all scenarios, entrepreneurs can choose a vertical field (such as medical health, industrial IoT, automotive interconnection) and deeply integrate Bluetooth technology with scenario requirements. For example, in the medical health field, based on the high compatibility and low power consumption characteristics of Bluetooth 5.3, a direct connection solution between wearable devices and hospital systems can be developed to solve the current problem of unstable data transmission of medical devices. In the industrial IoT field, the low – cost advantage of the Bluetooth Mesh network can be utilized to provide a lightweight device monitoring solution for small and medium – sized factories (without the need to deploy 5G or WiFi). Through “scenario focus,” entrepreneurs can build technical barriers and become the “standard – setters” for Bluetooth applications in this field.

  3. Balance “Standards” and “Innovation” to Avoid Falling into the Fragmentation Trap of Private Protocols
    Although private protocols can bring short – term differentiation, they may lead to the division of the ecosystem in the long run. Entrepreneurs need to find a balance between “utilizing standards” and “moderate innovation.” On the one hand, actively adopt the basic capabilities of the latest Bluetooth standards (such as the privacy protection technology of Bluetooth 6.1) to reduce development costs and ensure compatibility. On the other hand, develop “lightweight” enhanced functions (such as customized audio encoding optimization algorithms) according to scenario requirements and try to make them compatible with the standards (such as supporting through firmware upgrades). For example, when developing a private low – latency protocol for TWS earphones, optimization can be carried out based on the isochronous adaptation layer technology of Bluetooth 6.0 instead of completely redesigning it independently of the standards. This way, it can ensure compatibility with other Bluetooth devices and provide users with a unique experience.

Conclusion

The “transparency” of Bluetooth technology is not a sign of technological decline but rather a higher requirement put forward by the market for technical standards – shifting from “function stacking” to “experience focus” and from “multi – scenario compromise” to “vertical in – depth exploration.” For entrepreneurs, the key is to seize the “pain points” of user needs and the “itch points” of scenarios, transform Bluetooth technology into perceivable and reliable value, and then tap new business opportunities from this “familiar stranger.”

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