Why do smart AI glasses require high-grade sealing processes?

Smart AI glasses integrate a large number of electronic components such as precision sensors, cameras, microphones, speakers, batteries, and circuit boards, all of which are extremely sensitive to dust and moisture. Sealing failure can cause lens fogging that affects display performance, sensor malfunction, circuit short circuits, and even total device failure. The precision optical components and electronic assemblies inside VR/AR devices are extremely sensitive to dust and moisture, and sealing failure can lead to serious problems such as lens fogging and sensor malfunction.

What sealing processes are commonly used for AI glasses?

Mainstream sealing processes include: 1) Ultrasonic welding — high-frequency vibration melts and bonds the molecules at the interface of plastic parts, achieving precision sealing with no adhesive, no flash, and high consistency; 2) Sealing rings and structural waterproofing — a dual design combining sealing rings and structural waterproofing at key locations such as charging ports; 3) Dispensing sealing — precision dispensing processes at locations such as lens bonding and housing seams; 4) PECVD nano coating — plasma-enhanced chemical vapor deposition nano coating technology, serving as an invisible shield for whole-device protection; 5) Immersion sealing verification — dual verification through water immersion testing and air tightness testing.

What are the accuracy and efficiency of air tightness testing for AI glasses?

PLUS air tightness testers use the differential pressure testing method, monitoring pressure changes through high-precision sensors with testing accuracy down to the Pa level. They can store 99 sets of programs and flexibly retrieve test parameters for different products. They support multi-station parallel testing, making them suitable for 100% full inspection on production lines. Air tightness testing is gradually replacing traditional water immersion testing and becoming the mainstream solution for full inspection on AI glasses production lines.

In-depth analysis of the importance of smart AI glasses sealing process and sealing test-

Smart AI glasses are rapidly evolving from a "niche geek toy" to a "mass-market smart gateway," and are regarded as theNext-generation personal interaction terminalIn 2025, global AI glasses shipments reached8.7 million units, representing a substantial year-on-year increase of 322%. As products evolve from "screenless audio" to "screen-equipped spatial computing" terminals,Sealing processes and sealing tests have become core elements of product quality assurance.Precision sensors, cameras, circuit boards, and other electronic components are extremely sensitive to dust and moisture. Their sealing performance directly determines the display quality, functional reliability, and service life of the product.

Smart AI Glasses and Sealing Protection

AI glasses integrate precision sensors, cameras, batteries, and other electronic components, and the sealing process is the "invisible lifeline" that ensures display performance and functional reliability.

I. Global Smart AI Glasses Market Size and Growth Trends

1.1Global Market

According to the latest data from Omdia,In 2025, global AI glasses shipments reached 8.7 million units, a substantial year-on-year increase of 322%.China Commercial Industry Research Institute predicts that the global AI glasses market size will reach6.653 billion yuan, and it will break through in 202618.209 billion yuan。

From the perspective of regional distribution,Mainland China accounts for 10.9% of the global AI glasses market, with shipments approaching 1 million units, making it the world's second-largest market after the United States.。

1.2Chinese market

China is the world's fastest-growing AI glasses market. According to NIQ GfK data,In 2025, domestic AI smart glasses retail sales reached 289,000 units, a year-on-year increase of 786%.The supply side of the industry chain also surged simultaneously, with the number of new brands added for the year increasing year-on-year.1400%, the number of new product models increased significantly year-on-year1520%。

NIQ GfK predicts,In 2026, the overall retail volume of the domestic AI smart glasses market will exceed 700,000 units., the high-growth cycle continues. In the first half of 2026, China's smart glasses market achieved full-channel sales of909,000 units, a year-on-year increase of 85.5%; sales reached1.88 billion yuan, a year-on-year increase of 98.7%.

1.3Product structure iteration

The industry is undergoing a structural shift from "screenless audio glasses" to "screen-equipped AI smart glasses." In Q4 2025, retail sales of screen-equipped products reached 53,000 units, accounting for 57% of sales; in Q1 2026, this share rose further to 60%.Screen-equipped products have become the core driver of market growth.。

II. Sealing Process: The "Invisible Lifeline" of Smart AI Glasses

2.1Why is sealing so critical for AI glasses?

Smart AI glasses integratePrecision sensors, cameras, microphones, speakers, batteries, circuit boardsand many other electronic components. These components are extremely sensitive to dust and moisture, and sealing failure will lead to:

Lens fogging: Affects display performance and visual experience
Sensor failure: Failure of key functions such as camera and gyroscope
Circuit short: Moisture intrusion causes mainboard burnout.
Equipment scrapping: Internal component oxidation and corrosion, significantly shortening product lifespan.

The precision optical components and electronic assemblies inside VR/AR devices are extremely sensitive to dust and moisture. Sealing failure can lead to serious problems such as lens fogging and sensor malfunction.

2.2Sealing Protection Rating Standard (IEC 60529)

Waterproof and dustproof capabilities of smart AI glasses are based onIP Code (Ingress Protection) standard IEC 60529Grade the following:

AI Glasses Sealing Structure Design

Ultrasonic welding, sealing rings, dispensing sealant, and nano-coating form a multi-layer protection system.

IP rating	Dust protection capability	Waterproof capability	AI glasses applications
IP54	Partial dust protection	Splash-proof	Basic everyday wear (Ideal Livis, HTC VIVE Eagle)
IP65	Completely dust-proof	Water spray protection	Outdoor sports scenarios
IP67	Completely dust-proof	Soak in water 1 meter deep for 30 minutes	Standard feature for mid-to-high-end AI glasses
IP68	Completely dust-proof	Continuous immersion (over 1 meter)	Professional Sports / Specialized Scenarios

2.3Mainstream sealing process technologies

(1) Ultrasonic welding

Through high-frequency vibration, the molecules at the interface of the plastic parts melt and bond together, achievingNo glue, no flash, high consistencyprecision sealing. This technology can achievePrecision welding and assembly of complex curved surface enclosures, andNo thermal stress deformation during the process。

(2) Sealing rings and structural waterproofing

At key areas such as the charging interface, useDual sealing design: O-ring seal plus structural waterproofing, combined with high-precision packaging technology, effectively resists sweat and rain intrusion. Some AI glasses use Type-C connectors,Combined with the sealing ring and limiting rib structure, it solves the sealing and waterproofing problem of the charging interface.。

(3) Dispensing and sealing

At parts such as lens bonding and housing seams, usePrecision dispensing processSeal it to prevent moisture and dust from penetrating through tiny gaps.

(4) PECVD nano coating

PECVD (Plasma-Enhanced Chemical Vapor Deposition) nano-coating technologyis becoming the "invisible shield" for the protection of smart glasses as a whole, solving the protection challenges of smart glasses with its "invisible protection" feature.

(5) Immersion sealing verification

According to national and industry standards, smart AI glasses are required to undergoImmersion test and air tightness testingDual verification.

2.4Mainstream Product Sealing Capability Comparison

Product Model	Waterproof rating	Weight	Sealing Highlights
Thunderbird V4	IP67	38 grams	Soak in water 1 meter deep for 30 minutes
Even G2	IP67	Not disclosed	IP6X complete dust protection + IPX7 short-term immersion
Oakley Meta Vanguard	IP67	Not disclosed	Deep waterproofing for sports scenarios
Light Particle AR Swim Goggles	IP68	Not disclosed	Swimming-grade ultra-high waterproof and anti-fog
Ideal Livis	IP54	36 grams	Everyday sweat and rain protection
HTC VIVE Eagle	IP54	48.8 grams	Daily commuting protection
RayNeo V3	IPX4	39 grams	Basic splash resistance

Even G2 upgraded to IP67 rating, indicating that the equipment featuresIP6X dust protection and IPX7 water protection, this rating andOakley Meta VanguardSame,IP6X dust protection means complete prevention of dust ingress, and IPX7 waterproof rating means protection against short-term immersion, so you don't need to worry even when wearing it in extreme weather conditions.。

III. Domestic and International Smart AI Glasses Brands and Market Share

3.1Global Competitive Landscape

The global AI glasses market presents"One superpower, multiple great powers"Vision.Meta holds an absolutely leading position.：

Dimension	Data
2025 global shipment volume	8.7 million units
Meta market share	85.2%
Meta shipments	7.4 million units, a year-on-year increase of 281.3%
Ray-Ban Meta 2025 sales	Over 7 million pairs, more than tripling year-on-year
Ray-Ban Meta cumulative sales	By the end of 2025Surpassed 7 million units

Global Manufacturer RankingsChina, Chinese manufacturersRokidandXiaomiRising rapidly, ranking respectivelyThe world's second and third, with market shares of3.9% and 3.5%。

3.2China Market Landscape

Since Meta has not yet directly entered the Chinese mainland market, local brands have quickly captured market share:

Ranking	Brand	Market share	Data Source
1	Xiaomi	31.9%	Omdia full year 2025
2	Rokid	28.5%	Omdia full year 2025
3	RayNeo	18.9%(Online)	RUNTO Technology H1 2026
4	Rokid	16.7%(Online)	RUNTO Technology H1 2026
5	Qwen	8.6%(Online)	RUNTO Technology H1 2026
6	Huawei	8.2%(Online)	RUNTO Technology H1 2026

Key Highlights in the Chinese Market

In 2025, AI glasses in mainland China reached950,000 units, year-over-year growth3545%
Xiaomi with31.9%ranked first in share, while Rokid, with28.5%Immediately after
In the first half of 2026, the top four brands in the online market wereThunderbird, Rokid, Qwen, Huawei
The combined share of the top four brands increased from56%Dropped to Q2's53%, the market landscape has not yet solidified

RokidStarting from the third quarter of 2025,Ranked among the top in sales of display-equipped AI smart glasses for three consecutive quarters, its market share in display-equipped products has long remained in the industry's top tier.

3.3Comparison of Sealing Capabilities Between Domestic and International Brands

"Comparison dimension"	International brands (Meta/Oakley)	Leading Chinese brands
Representative Products	Ray-Ban Meta、Oakley Meta Vanguard	RayNeo V4, Even G2
Waterproof rating	IP67For the main	IP67Gradually becoming standard
Sealing process	Structural waterproofing + sealing ring + nano coating	Ultrasonic welding + dispensing + sealing ring
Dust protection capability	IP6X dust-tight	IP6X dust-tight
Immersion capability	1 meter water depth for 30 minutes	1 meter water depth for 30 minutes (IP67 products)
Differentiated Highlights	Deep optimization for sports scenarios	Lightweight (38 g) + high protection in one

IV. Sealing Test: A Key Step in AI Glasses Quality Assurance

4.1The Importance of Sealing Testing

AI glasses integrate precision sensors and electronic components,With extremely high requirements for dust and water protection (IP rating)Sealing test is essential to ensure products meet their claimed IP rating and safeguard user safety.Necessary means。

Core value of sealing tests

Validate design reliability: Ensure the sealing design is effective in the actual product
Ensure user experience:Prevent lens fogging and functional failure
Reduce after-sales risk: Reduce returns and exchanges caused by water ingress
Meets compliance requirements: Mandatory Prerequisites for IP Rating Certification

4.2Sealing test methods

The following methods are mainly used for sealing tests of smart AI glasses:

Test Methods	Principle	Features
Air tightness testing (pneumatic method)	Apply positive or negative pressure to the interior of the product and monitor the leak rate.	Non-destructive testing, fast speed, suitable for full inspection on the production line
Immersion test (water immersion method)	Fully immerse the product in water at the specified depth	Intuitive verification, but it is a destructive test.
Helium mass spectrometer leak detection	Detect micro-leaks using helium as a tracer gas	Extremely high precision, suitable for high-end products
Nitrogen-hydrogen leak detection	5% hydrogen + 95% nitrogen mixed gas tracing	Low cost, accuracy on par with helium leak testing

Air leakage detectorIts application in smart AR glasses production has become quite mature. Relevant patented technologies show that semi-finished components of smart AR glasses need toFirst perform leak point detection, then place it into the air tightness tester and water tank for air tightness testing and water immersion testing.。

4.3Sealing Test Industry Trends

Upgrading from immersion testing to air tightness testing: Air tightness testing is non-destructive and highly efficient, making it more suitable for full inspection on the production line.
IP67 becomes the testing benchmark: More and more AI glasses are adopting IP67 as a factory standard.
In-line full inspection adoptionMulti-station air tightness testers enable 100% full inspection on production lines
Continuous improvement in detection accuracy: Evolving from Pa-level to higher precision

V. Professional Service Provider for Smart AI Glasses Sealing Testing — PLUS (Guangzhou) Intelligent Technology Co., Ltd.

For smart AI glassesIP67/IP68 waterproof verification, enclosure micro-leak detection, 100% inline inspectionetc.PLUS (Guangzhou) Intelligent Technology Co., Ltd.Provide professionalAir Tightness Testing Solutions。

PLUS (Guangzhou) Intelligent Technology Co., Ltd. was founded in 2018, focusing on the field of sealing test, and is an enterprise integrating technology development, production and sales.National High-Tech Enterprise. The company's products are widely used inConsumer electronics (smartwatches, earbuds, AI glasses), new energy vehicles, automotive components, medical devices, and home appliancesand other fields.

Core Products

X530 Differential Pressure Leak Detector: High-precision sensor, Pa-level resolution, precision testing for high-end AI glasses products
D520 Direct Pressure Leak Detector: Microcomputer-controlled, fully automatic testing, 100% inspection for production line batches
D533 Multi-Station Leak Detector: Flexible configuration of 1-4 stations, 24-bit sampling accuracy, multi-station parallel testing
X532 Positive and Negative Pressure Leak Detector: Positive pressure + negative pressure dual-mode switching, flexible adaptation for products with different structures
P522L Flow Tester: 5-inch color touchscreen, motorized pressure regulation, vent membrane/breather verification

Consumer Electronics Application Cases

PLUS has extensive experience in the consumer electronics fieldHundreds of successful application cases
Smartwatch Waterproof Sealing Test
Bluetooth earphone air tightness testing
Action camera waterproof verification
AI smart glasses housing micro-leak detection
Custom Development of Camera Sealing Test Equipment

Technical Advantages

Customized solutions based on the customer's product structure and testing cycle time requirements
Integrates a high-precision leak detector with a dedicated fixture
Can store 99 sets of program schemes, allowing flexible recall of test parameters for different products.
Test data is automatically stored to support quality traceability.

Company Qualifications

National High-Tech Enterprise
Small and medium-sized technology enterprises
CE Certification
ISO9001 Certification

VI. Summary

The global smart AI glasses market is currently in aExplosive growthIn 2025, global shipments reached 8.7 million units, with the Chinese market growing at a rate of 3,545%. As products evolve from "screenless audio" to "screen-equipped spatial computing" terminals,Sealing processes and sealing tests have become core elements of product quality assurance.。

In terms of sealing processes, leading brands generally adoptUltrasonic welding + sealing ring + dispensing + nano coatingcomposite sealing solution, with the waterproof rating based onIP67as an industry standard. From the perspective of sealing tests,Air tightness testingIt is gradually replacing the traditional water immersion test and becoming the mainstream solution for 100% full inspection on the production line.

PLUS (Guangzhou) Intelligent Technology Co., Ltd., as a national high-tech enterprise, has deep expertise in the air tightness testing field, with hundreds of successful cases in consumer electronics. We can provide professional sealing test solutions for the AI smart glasses industry, helping companies win the market with quality in the "battle of a hundred glasses."

In-depth analysis of the importance of smart AI glasses sealing process and sealing test