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Meta’s Aria Gen 2 is a research-glasses platform, not a consumer smart-glasses launch. Meta’s June 2025 overview describes a broader sensing system and on-device machine-perception capabilities; current Project Aria documentation explains the hardware and how qualified research partners can access the Research Kit.
The specifications below are manufacturer-reported, not independent test results. Aria Gen 2 should not be confused with Ray-Ban Meta glasses or treated as a product generally available to buy.
What is Meta Aria Gen 2?
Project Aria combines wearable research hardware with datasets, models, and software tools. Meta describes the platform as infrastructure for internal and external research, including work on egocentric AI, contextual AI, and robotics. The glasses capture signals from the wearer’s point of view, while their coprocessor can generate machine-perception signals for research and prototyping.
Aria Gen 2 is therefore a research instrument, not a finished AI assistant or augmented-reality product. Its sensors and perception functions provide research inputs; they do not establish a consumer feature set, medical capability, or general retail availability.
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Aria Gen 2 specifications at a glance
Meta’s June 2025 overview and current Project Aria hardware documentation describe the following features. The figures are manufacturer specifications or demonstrations, not independently verified measurements.
| Area | Documented details |
|---|---|
| Fit and weight | 74–76 g depending on size, eight size variations, and folding arms, according to Meta’s June 2025 overview. |
| Computer-vision cameras | Four global-shutter cameras. Project Aria hardware documentation lists a 119° × 119° field of view per camera. |
| Camera comparisons | Meta’s June 2025 overview reports 120 dB dynamic range for Gen 2 versus 70 dB for Gen 1, and 80° stereo overlap versus 35°. |
| RGB camera | A separate 12 MP Sony IMX681 camera; documentation lists full-resolution 4032 × 3024 capture at 24 fps, with 133° horizontal and 99° vertical field of view. |
| Eye tracking | Each eye has a 400 × 400 infrared camera and eight infrared LEDs. On-device gaze estimation can run at up to 90 Hz, according to Project Aria hardware documentation. |
| Audio | Seven acoustic or spatial microphones and two force-cancelling speakers. A contact microphone in the nosepad samples at up to 48 kHz. |
| Other sensors | Two IMUs, GNSS, a barometer, magnetometer, proximity and ambient-light sensors, and nosepad PPG and contact-microphone sensors. |
| Battery and connectivity | Project Aria hardware documentation lists 6–8 hours of continuous recording, Wi-Fi 6E, and Bluetooth 5.3. No independent battery test was identified. |
| Timing across devices | A Sub-GHz radio broadcasts timing information. Documentation reports measured time-offset error below 10 μs under stated operating assumptions, and says this aligns timing rather than synchronizing devices. |
What is different from Aria Gen 1?
Meta’s June 2025 overview describes changes to camera coverage, stereo vision, fit, and sensing. Current Project Aria documentation adds component-level detail and records battery and timing specifications.
| Comparison | Aria Gen 1 | Aria Gen 2 | Why it matters for research |
|---|---|---|---|
| Computer-vision cameras | Two, according to Meta’s overview. | Four global-shutter cameras. | Meta presents the expanded camera coverage as support for spatial perception and research into hands and objects. |
| Dynamic range | 70 dB, per Meta’s June 2025 comparison. | 120 dB, per the same overview. Current hardware documentation separately describes CV-camera dynamic-range capability as exceeding 110 dB. | Keep the overview comparison distinct from the technical documentation’s specification wording. |
| Stereo overlap | 35°, per Meta’s overview. | 80°, per Meta’s overview. | Greater overlap supports stereo depth-reconstruction research; it does not mean the glasses automatically produce a complete 3D map in every setting. |
| Fit and form | Meta’s overview gives the Gen 1 comparison but does not establish independent comfort results. | 74–76 g depending on size, eight sizes, folding arms. | These are design specifications, not proof from independent wear testing. |
| Additional sensing | Meta’s overview contrasts the Gen 1 setup with Gen 2’s expanded system. | Includes PPG, ambient-light, and contact-microphone sensors in the documented sensor mix. | These add research signals; PPG is not a claim of clinical accuracy or medical certification. |
| On-device perception | Gen 1 comparison is not fully specified in the current hardware documentation. | A custom coprocessor supports functions including visual-inertial odometry, gaze-related signals, and 3D hand tracking. | These are machine-perception capabilities for research, not proof of an end-user application. |
| Recording and timing | No directly comparable figures are established here. | Documentation lists 6–8 hours of continuous recording and Sub-GHz time alignment. | The radio timing feature aligns recordings; Meta’s documentation explicitly says it does not synchronize devices. |
Meta’s June 2025 overview reports 120 dB for Gen 2 and 70 dB for Gen 1; the current hardware page uses separate wording, describing CV-camera dynamic-range capability as exceeding 110 dB. Those statements should not be collapsed into one measurement.
What the sensors and processing are for
The four computer-vision cameras, separate RGB camera, eye-tracking cameras, microphones, and motion and location sensors let researchers study different aspects of first-person activity. Meta connects the camera system and stereo overlap to research such as hand and object tracking, depth maps, and spatial awareness. Hardware documentation also describes off-device depth reconstruction from the front-facing stereo pair, so readers should not assume all mapping happens automatically on the glasses.
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The nosepad contact microphone offers another type of audio input. Meta’s overview demonstrates it picking up wearer speech through contact vibration in a wind-tunnel scenario where acoustic microphones pick up more wind. That is a company demonstration, not a guarantee of speech isolation in all environments.
Meta says the custom coprocessor can run machine-perception functions including visual-inertial odometry, gaze and eye signals, and articulated hand tracking. The platform also supports H.265/HEVC video and OPUS audio compression, according to the hardware documentation. These capabilities can support research prototypes; they are not evidence that Aria Gen 2 is a consumer assistant.
What the timing system does—and does not do
Researchers may need to compare recordings from more than one device. Aria Gen 2’s Sub-GHz radio broadcasts timing information to help align those recordings. Meta’s current documentation reports measured time-offset error below 10 μs under the stated system assumptions.
That function is time alignment, not device synchronization. The distinction matters: the documentation does not say the radio makes multiple glasses operate as one synchronized system.
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Can you buy Aria Gen 2 glasses?
Aria Gen 2 is not presented as a general retail product. Meta’s current Project Aria documentation says qualified research partners can apply for the Aria Research Kit, which is the relevant access route for research use.
Meta’s June 4, 2025 announcement said applications for Aria Gen 2 would open “later this year.” That was a statement about 2025, not a current application timetable. The current documentation reviewed here does not specify application windows, qualification criteria, geography, pricing, or acceptance procedures.
What is included in the Project Aria research platform?
Meta’s current Project Aria overview describes two broad parts: open-science resources, including datasets and tools, and the Aria Research Kit for data collection and real-time prototyping. The documented kit ecosystem includes:
- Aria Gen 2 glasses
- A mobile companion app
- Dataset management tools and command-line utilities
- Machine Perception Services
- A Client SDK
Researchers comparing whether the platform fits a project should check partner eligibility, required sensor coverage, data collection and streaming workflows, software and API support, dataset availability, and whether their work needs one device or multiple time-aligned recordings. Meta’s documentation describes the tools and qualified-partner access route, but does not establish general consumer purchase access.
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Privacy and research considerations
Aria Gen 2’s documented sensors include cameras, microphones, eye tracking, location inputs, and PPG. Their presence makes participant consent and data handling important considerations for any study. The hardware and platform sources cited here describe sensors and research tools, but do not provide enough detail to make claims about current participant-consent rules, anonymization, or data-retention practices. Researchers should consult Project Aria’s current community guidelines and study requirements rather than infer those policies from the hardware specifications.
FAQ
What is Meta Aria Gen 2?
It is Meta’s research-glasses platform for collecting multimodal, first-person data and supporting machine-perception research. It is not a consumer smart-glasses launch.
Can you buy Aria Gen 2 glasses?
Meta’s current documentation describes access through the Aria Research Kit for qualified research partners. It does not describe general retail availability.
What sensors do Aria Gen 2 glasses have?
Project Aria hardware documentation lists four computer-vision cameras, a 12 MP RGB camera, eye-tracking cameras, seven microphones, two IMUs, GNSS, a barometer, magnetometer, proximity and ambient-light sensors, and nosepad PPG and contact-microphone sensors.
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How is Aria Gen 2 different from Gen 1?
Meta’s June 2025 overview reports four computer-vision cameras instead of two, 120 dB versus 70 dB dynamic range, and 80° versus 35° stereo overlap. Meta also lists a 74–76 g weight depending on size and eight size variations for Gen 2. These are manufacturer-reported comparisons, not independent test results.
Does Aria Gen 2 synchronize multiple devices?
No. Its Sub-GHz system broadcasts timing information to help align recordings. Meta’s hardware documentation explicitly distinguishes time alignment from synchronizing devices.
Is Aria Gen 2 a medical or health product?
No such status is established in the documentation reviewed. Although the glasses include a PPG sensor, its presence does not establish clinical accuracy, diagnosis, or wellness certification.
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