The Optoma ML1080UST PHOTON GO and VOPLLS present two distinct approaches to portable home projection, each excelling in different areas. The most striking difference lies in brightness and price. The VOPLLS boasts an impressive 3600 ANSI lumens, delivering a vibrant and usable image even in rooms with some ambient light, all for just $599.99. This makes it an exceptional value for those prioritizing a bright picture across various viewing conditions. In contrast, the Optoma's brightness is not specified, but as an ultra-short throw (UST) and battery-powered unit, it's typically designed for more controlled, darker environments.

The Optoma's premium price of $899 is justified by its highly specialized features. Its ultra-short throw capability allows it to project a massive 100-inch image from less than a foot away, a game-changer for small apartments or spaces where traditional projector placement is impossible. This eliminates shadows from people walking in front of the screen. Furthermore, its triple RGB laser light source promises superior color accuracy and eliminates the need for lamp replacements, offering a maintenance-free experience with quick on/off times, unlike the VOPLLS's 30,000-hour lamp.

True portability is another key differentiator. The Optoma includes a built-in battery, providing up to 1.5 hours of runtime, making it genuinely suitable for impromptu outdoor movie nights or presentations without a power outlet. The VOPLLS, while described as portable, lacks a battery and relies on external power. However, the VOPLLS counters with user-friendly features like automatic focus and 6D keystone correction, simplifying setup compared to the Optoma's requirement for a perfectly flat projection surface. Both projectors offer the convenience of integrated Google TV for certified streaming apps, though the VOPLLS is limited to a single HDMI port, which might be a drawback for users with multiple external devices.

Ultimately, the choice hinges on priorities. The VOPLLS delivers exceptional brightness and smart features at an unbeatable price, offering a fantastic all-around home cinema experience. The Optoma, despite its higher cost, caters to a niche demanding ultimate space-saving, color fidelity, and untethered portability, offering a premium experience for specific, less common scenarios.