Apple’s latest AirPods 3 still feature an optical in-ear detection mechanism, according to TrendForce’s 2021 Infrared Sensing Market Trend – 3D Sensing, LiDAR, SWIR LED report. Through the integration of PPG (photoplethysmography) technology, the AirPods 3 contain an improved in-ear detection mechanism based on skin-detect sensors that are equipped with four SWIR (short-wave infrared) LED chips that have two different wavelengths, as well as two InGaAs photodiodes. Industry insiders indicate that the AirPods 3’s skin-detect sensors may potentially detect the water content in the wearer’s skin, giving them the ability to differentiate between human skin and other surfaces. TrendForce expects annual AirPods shipment for 2022 to reach 85 million sets, a 3.7% YoY increase.

While the demand for these end-products rises, the relevant suppliers will stand to benefit as a result. Such companies include SWIR LED chip suppliers Epistar and DOWA; InGaAs photodiode suppliers DOWA and II-VI/Finisar; and module assembler USI.

SWIR wavelengths range from 1,050-2,500 nm, which encompasses the optical properties of compounds such as water, sugar, and alcohol. While SWIR technologies gradually mature, and prices begin to reach feasible levels, wearables manufacturers are expected to officially integrate SWIR technologies into their products in 2H21. With improvements in their algorithm, wearables are increasingly likely to feature PPG-based biosensing functions, which can measure not only heart rate and blood oxygen levels, but also other variables including body hydration as well as blood glucose, blood lipid, and blood alcohol levels in the future.

For more information on reports and market data from TrendForce’s Department of Optoelectronics Research, please click here, or email Ms. Grace Li from the Sales Department at graceli@trendforce.com

The arrival of the COVID-19 pandemic last year prompted enterprises to accelerate their digital transformation efforts. As such, the year 2020 marked the turning point for the AR/VR industry, with an increasing number of global enterprises now paying close attention to AR/VR headsets and applications. Two such applications which show the most significant short-term growth are “virtual collaboration platform” and “remote support”, particularly in the relatively small-scale AR headset markets.

TrendForce indicates that annual AR headset shipment is expected to increase from 580,000 units in 2020 to 1.3 million units in 2021; on the VR headset front, annual shipment is expected to increase from 4.43 million units in 2020 to 5.65 million units in 2021, with the key enablers of these shipment growths being entertainment applications from the consumer side and commercial applications from the enterprise side.

It should be noted that, however, as VR headsets have lower prices and technical barriers to entry compared to AR headsets, many companies are opting to purchase consumer VR headsets for use in commercial applications. Despite the growth of the AR/VR headset market in recent years, the ongoing shortage of semiconductor components is expected to put some downward pressure on these headsets’ shipments this year.

Enterprise demand is the primary driver of telecom companies’ efforts to combine 5G with AR/VR applications

With remote commercial applications generating an increasing demand for AR/VR headsets, use cases such as remote interaction and real-time sharing of 3D objects will require an enormous amount of network bandwidth. Likewise, the demand for low-latency and smooth user experiences will continue to drive 5G demand from the commercial sector, thereby compelling major telecom companies such as Ericsson, China Mobile, NTT DoCoMo, and Chunghwa Telecom to release dedicated 5G plans geared specifically for AR/VR applications in order to ensure the highest quality connections for these applications.

For telecom companies, building 5G infrastructure demands an enormous cost, but the current use of smartphones is unable to completely saturate the total 5G bandwidth. In other words, telecom companies are unable to recuperate their 5G investment costs, and this predicament is what led them to seek out other applications/products that can potentially make use of 5G connectivity, such as IoT, video streaming, and AR/VR.

What should suppliers that aim to enter the AR/VR markets pay attention to?

TrendForce believes that suppliers wishing to enter the AR/VR markets must take into consideration two factors, which are “cost” and “profit distribution”. First of all, both AR/VR headsets and dedicated 5G connections require enormous investment costs. Most companies involved in these applications are therefore still in the small-scale trial period at the moment.

Given the limited funding that these companies are allocating, real-life user experience has suffered as a result, leading to a reduced willingness by potential clients to continue adopting AR/VR solutions going forward. For instance, if network infrastructures do not provide sufficiently comprehensive coverage or sufficiently high bandwidth, the resultant latency or signal loss can lead to poor remote collaboration experiences on the user side.

The second issue that suppliers must confront has to do with profit distribution. Most AR/VR solutions are provided to users at a flat subscription fee which covers the costs of AR/VR headsets, 5G network connections, and software platforms. This type of flat fee structure is attractive for customers as it is relatively simple and straightforward.

However, on the supply side, the fair distribution of profits among AR/VR headset suppliers, telecom companies, and software platform vendors remains a critical issue. In particular, since AR/VR headsets and 5G networks are all extremely costly, along with the fact that the 5G rollout is still in its infancy, unfair distribution of profits can potentially lead to certain suppliers being unwilling to participate in the AR/VR market in the long run.

（Cover image source: Unsplash）