Acer A640 4K Webcam
Bottom line: The Acer A640 4K Webcam ($37.98 on Amazon as of 2026-10-06): Sony 1/2.8-inch sensor delivers 4K/30fps plus 2K and 1080p at 60fps; main trade-off: 4K capped at 30fps — 60fps requires dropping to 2K or 1080p.
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*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.
Pros & Cons
Pros
- ✓ Sony 1/2.8-inch sensor delivers 4K/30fps plus 2K and 1080p at 60fps
- ✓ PDAF phase-detection autofocus locks on without the usual focus hunting
- ✓ Physical privacy shutter slides shut over the lens
- ✓ Driverless plug-and-play with a bundled USB-A to USB-C adapter
Cons
- ✗ 4K capped at 30fps — 60fps requires dropping to 2K or 1080p
- ✗ No tripod mount or field-of-view spec stated in the listing
- ✗ Built-in mic relies on AI filtering, not a dedicated stereo array
- ✗ Small 180-review sample for long-term reliability signals
SpecPicks Verdict
SpecPicks scored Acer A640 4K Webcam using a rating × review-volume × price-fit model applied to published specs and reviews across the streaming gear category. Compare with similarly-priced alternatives in the streaming gear category before committing. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.
Common buyer scenarios for streaming gear of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.
Key Features
- Instant PDAF Autofocus — Stay sharp with Phase Detection Auto Focus. This computer camera locks onto subjects instantly, eliminating the focus "hunting" found in a standard webcam for a crisp, stable streaming experience.
- 4K HD Fidelity— Experience uncompromising video quality. Powered by a brand new Sony 1/2.8-inch sensor, this 4k webcam delivers remarkable clarity and color accuracy at a fluid 4K at 30fps, while also supporting 2K/1080p at 60fps to ensure every detail is captured with professional-grade precision.
- Plug and Play — Simplicity from the moment you connect. This usb camera works natively without additional software or drivers, featuring a USB-A to C adapter to ensure an instant, reliable connection across all your devices, from legacy PCs to the latest laptops.
- AI Noise Cancellation—hear only what matters. This webcam with a microphone uses AI-powered technology to filter out distracting background noise, ensuring your voice comes through clearly and professionally via your computer speakers.
- Privacy Shutter — Security you can see and feel. This 4k webcam features a physical shutter that slides closed in an instant, providing total peace of mind by ensuring your computer camera lens is only open when you are.
- Universal Connectivity — Engineered for the modern era of communication. This 4k webcam is compatible with the Switch 2 and all mainstream platforms, including Microsoft Teams, Zoom, and Twitch, ensuring a seamless streaming experience across your favorite hardware and software.
Full Specifications
| Brand | Acer |
|---|---|
| Color | Deep Black |
| Focus Type | Auto Focus |
| Model Name | A640 |
| Unit Count | 1 Count |
| Screen Size | 2 inches |
| Sensor Type | CMOS |
| Connectivity | USB |
| Digital Zoom | 4 x |
| Model Number | A640 |
| Optical Zoom | 1 x |
| Compatibility | PC, Switch |
| Viewing Angle | 77.4 degrees |
| Built-In Media | 4K webcam |
| Camcorder Type | Webcam |
| Special Feature | Low Light |
| Antenna Location | Indoor |
| Maximum Aperture | 2.8 millimeters |
| Video Resolution | 4K |
| Flash Memory Type | NOT Available, Rely on Your PC/Mac |
| Full listing title | Acer A640 4K Webcam for PC with Sony Sensor PDAF Autofocus AI Noise Canceling Mic 2K 1080P/60fps USB A to C Adapter Computer Camera for Gaming Streaming Meetings Switch 2 Camera Teams Zoom Facetime |
Ready to buy?
Acer A640 4K Webcam for PC with Sony Sensor PDAF Autofocus AI Noise Canceling Mic 2K 1080P/60fps USB A to C Adapter Computer Camera for Gaming Streaming Meetings Switch 2 Camera Teams Zoom Facetime is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.
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