Portable Projector Comparison: ASUS ZenBeam L2 vs. BenQ GS50

Introduction to Portable Projectors

The dream of carrying a movie theater in your backpack has become surprisingly achievable in recent years. Portable projectors have evolved from dim, low-resolution curiosities into legitimate entertainment powerhouses that can transform any wall into a serviceable screen. Unlike their bulkier traditional counterparts that typically weigh 10+ pounds and require permanent installation, modern portable projectors prioritize convenience without completely sacrificing performance.

These compact devices have found their audience among frequent travelers, outdoor entertainment enthusiasts, and business professionals who need presentation capabilities on the go. According to industry reports, the portable projector market has grown steadily since 2020, accelerated by pandemic-era home entertainment needs and continuing with the rising popularity of outdoor gatherings.

What's particularly interesting about this category in 2023 is how manufacturers are approaching the balance between portability and performance. The ASUS ZenBeam L2 and BenQ GS50, both released in 2023, represent two different philosophies in addressing this challenge.

Key Purchasing Considerations

Before diving into our specific contenders, let's establish what matters most when shopping for a portable projector:

Brightness is perhaps the most critical factor, measured in ANSI lumens (a standardized brightness measurement). Higher numbers mean better visibility in ambient light. For context, traditional home theater projectors often offer 2,000+ ANSI lumens, while portable models typically range from 200-600 ANSI lumens.

Resolution determines image sharpness. Full HD (1920×1080) has become the standard minimum for a good viewing experience, though some budget options still use 720p.

Portability factors include physical dimensions, weight, and crucial battery life for truly wireless use.

Durability becomes especially important for outdoor use, with features like water resistance increasingly common.

Smart features have become expected, with integrated streaming capabilities reducing the need for external devices.

Audio quality matters significantly since external speakers often defeat the purpose of portability.

And of course, price-to-performance ratio ultimately determines value.

ASUS ZenBeam L2 vs. BenQ GS50: Overview

The ASUS ZenBeam L2 (priced around $792) made its debut at CES 2023 and became available to consumers in October 2023. It represents ASUS's premium offering in the portable projector space, focusing on sleek design and integrated smart features.

The BenQ GS50 (priced around $795) launched in early 2023 as part of BenQ's outdoor-focused projector lineup. The GS50 emphasizes durability and image quality for outdoor viewing scenarios.

Despite their similar price points, these projectors target slightly different users. The ZenBeam L2 appeals to design-conscious consumers who primarily use their projector indoors with occasional outdoor use, while the GS50 targets adventure-minded users who regularly project in challenging environments.

Image Performance

Both projectors offer Full HD 1920×1080 resolution, which provides adequately sharp images for screen sizes up to about 100 inches. This represents a significant improvement over older portable projectors that often maxed out at 720p.

Brightness is where we see meaningful differences. The ASUS ZenBeam L2 outputs 960 LED lumens, which translates to about 400 ANSI lumens. ANSI lumens is the standardized brightness measurement that allows for fair comparisons, while LED lumens is a marketing term that typically produces higher numbers. The BenQ GS50 delivers 500 ANSI lumens, giving it a 25% brightness advantage that becomes particularly noticeable when viewing in rooms with ambient light.

Contrast ratio, which determines the difference between the brightest whites and darkest blacks, heavily favors the BenQ. The GS50 boasts an impressive 100,000:1 contrast ratio compared to the ZenBeam L2's 400:1. This substantial difference means the GS50 produces noticeably deeper blacks and more vibrant image separation, especially in darker viewing environments.

Color reproduction is strong on both units, with the ZenBeam L2 covering 120% of the sRGB color gamut. The GS50 doesn't specify its exact color gamut coverage, but reviews consistently praise its color accuracy and vibrancy. Both projectors support HDR10 content (High Dynamic Range), which enhances contrast and color depth when playing compatible content.

In practical viewing scenarios, the BenQ's brightness and contrast advantages make it more versatile across different lighting conditions. The ZenBeam performs admirably in controlled environments but struggles more when ambient light is present. Neither projector will match the performance of dedicated home theater projectors that offer 2,000+ ANSI lumens, but they're not designed for that purpose.

Portability and Design

The physical design philosophies of these projectors reflect their intended use cases. The ASUS ZenBeam L2 embraces a modern, living room-friendly aesthetic with a compact cube shape measuring 132 x 172 x 132 mm and weighing just 3.4 pounds. Its sleek design includes a leather handle for easy carrying.

The BenQ GS50 adopts a more rugged approach at 150 x 190 x 150 mm and a heavier 5.07 pounds. The additional weight accommodates its more robust build quality and weather protection features.

Battery life gives the advantage to the ASUS, offering up to 3.5 hours of playback on a single charge compared to the BenQ's 2.5 hours. This difference could be significant for outdoor movie nights, potentially allowing the ZenBeam to complete a full feature film without requiring external power.

Both projectors feature easily accessible controls and quick setup times of under a minute. The GS50 includes a carrying case that protects it during transport, while the ZenBeam's more minimalist approach relies on its integrated handle.

Durability and Environmental Protection

For outdoor enthusiasts, the BenQ GS50 offers significant advantages in durability. It features an IPX2 splash-proof rating, meaning it can withstand light water exposure such as rain sprinkles or accidental drink spills. It's also drop-resistant from heights up to 70cm, which provides peace of mind during transport and setup.

The ASUS ZenBeam L2 lacks specific weatherproofing certifications, making it better suited for controlled indoor environments or fair-weather outdoor use. Its design prioritizes aesthetics over ruggedness, with more exposed ports and less protection against the elements.

Both projectors use LED light sources rated for extended lifespans – 30,000 hours for the ZenBeam and 20,000-30,000 hours for the GS50 depending on brightness mode. This represents about 10 years of typical use before any degradation in image quality, a significant improvement over traditional lamp projectors that often require replacement bulbs after 3,000-5,000 hours.

Smart Features and Connectivity

The integration of smart features represents one of the most significant advances in portable projectors in recent years, eliminating the need for external streaming devices.

The ASUS ZenBeam L2 takes a fully integrated approach with Android TV 12 built directly into the projector. This provides access to thousands of apps including Netflix, Disney+, and YouTube without requiring additional hardware. The integrated system supports voice commands through Google Assistant and features Chromecast functionality for easy screen mirroring from compatible devices.

The BenQ GS50 takes a different approach, including a separate QS01 Android TV dongle that plugs into one of its HDMI ports. While this provides similar functionality to the ZenBeam's integrated system, user reviews suggest the dongle occasionally suffers from performance issues and overheating during extended use. The modular approach does have one advantage: it allows users to substitute their preferred streaming device if desired.

Connectivity options are similar on both units. The ZenBeam L2 includes HDMI, USB-C with DisplayPort Alt mode, USB-A, and a 3.5mm audio output. The GS50 offers HDMI 2.0, USB-A, USB-C, and a 3.5mm audio output. Both support Bluetooth for connecting wireless speakers or headphones.

Wi-Fi capabilities are present on both projectors, with the GS50 supporting both 2.4GHz and 5GHz networks, while the ZenBeam L2 appears limited to 2.4GHz based on available documentation.

Auto-Adjustment Features

Modern portable projectors have significantly improved the setup experience through automation, and both these models excel in this area.

The ASUS ZenBeam L2 features autofocus, auto keystone correction (which adjusts the image shape when projecting at an angle), and an impressive obstacle avoidance system. This last feature automatically resizes and repositions the projected image to fit available wall space, avoiding obstacles like picture frames or light switches. The entire auto-adjustment process takes about 3 seconds after pointing the projector at a new surface.

The BenQ GS50 includes autofocus and auto keystone correction but lacks the obstacle avoidance feature. Its auto-adjustment capabilities work reliably according to reviews, though some users report occasionally needing to trigger the auto-adjustment manually after moving the projector.

These auto-adjustment technologies represent significant advances over older portable projectors that required manual focus rings and keystone adjustments, making setup considerably more user-friendly for casual users.

Audio Performance

Audio quality has historically been a weakness for portable projectors, but both these models make impressive strides in this area.

The ASUS ZenBeam L2 features a 10W Harman Kardon speaker that delivers surprisingly robust sound for its size. The audio has good clarity for dialogue and reasonable bass response, though it naturally can't match dedicated external speakers for volume or depth.

The BenQ GS50 takes audio even more seriously with a 2.1 channel system comprised of two 5W midrange tweeters and a 10W woofer. This configuration provides superior bass response and allows for 270-degree sound dispersion, creating a more immersive audio environment. The GS50 can also function as a standalone Bluetooth speaker when the projector function isn't being used, adding versatility.

For outdoor movie nights, the BenQ's more powerful audio system provides a significant advantage, reducing the need for external speakers. For indoor use where space might be limited, both provide satisfactory audio that outperforms most laptop or tablet speakers by a considerable margin.

Additional Features

Beyond the core functionality, both projectors offer some unique features worth highlighting.

The ASUS ZenBeam L2 includes a Light Wall feature with 26 different cinegraph options (moving images with subtle animations) that transform the projector into an ambient lighting device when not watching content. This function effectively gives the projector dual-purpose functionality as a decorative element.

The BenQ GS50 focuses its additional features on outdoor utility, with multiple power modes to extend battery life and specialized color modes for different viewing environments. It also includes a Kids Mode that automatically reduces brightness when someone passes in front of the projector, protecting eyes from the LED light.

For gaming enthusiasts, input lag (the delay between a console sending a signal and the image appearing on screen) becomes important. The GS50 measures approximately 62ms input lag at 60Hz, while the ZenBeam L2 doesn't specify its input lag. Neither projector would satisfy competitive gamers who typically want under 20ms, but casual gaming is certainly possible on both.

Value Assessment

At nearly identical price points around $795, these projectors represent premium options in the portable category. Their value proposition depends entirely on which features matter most to you.

The ASUS ZenBeam L2 delivers better value for those who:

• Primarily use their projector indoors
• Prioritize longer battery life and integrated smart features
• Appreciate design aesthetics and lighter weight
• Value the obstacle avoidance feature for flexible setup

The BenQ GS50 provides better value for users who:

• Regularly project outdoors in variable weather
• Need maximum brightness and contrast ratio
• Prioritize audio quality and volume
• Require durability for travel and outdoor activities

Both projectors utilize long-lasting LED light sources that should provide approximately 10 years of typical use before showing degradation, making their long-term value strong compared to lamp-based projectors that require bulb replacements.

Warranty coverage is standard for both models at 2 years for the projector and 1 year for the battery, which is reasonable for this product category.

User Reviews and Feedback

Professional and consumer reviews of both projectors have been generally positive, with some consistent themes emerging.

The ASUS ZenBeam L2 receives praise for its ease of setup, integrated Android TV experience, and compact design. Users particularly appreciate the obstacle avoidance feature and auto-adjustment capabilities. The most common criticisms involve brightness limitations in well-lit rooms and color accuracy that sometimes appears slightly oversaturated in the brightest modes.

The BenQ GS50 earns high marks for its rugged design, excellent contrast ratio, and impressive audio system. Reviewers consistently mention its superior performance in varied lighting conditions. Criticisms focus on the bulkier form factor, heavier weight, and occasional issues with the external Android TV dongle overheating or performing sluggishly.

Reliability reports appear strong for both units, with few mentions of technical failures or quality control issues in user reviews.

How to Decide

The decision between these two excellent portable projectors ultimately comes down to your specific needs and usage patterns.

Choose the ASUS ZenBeam L2 if:

• You'll primarily use the projector indoors with occasional outdoor use
• Integrated streaming without external devices is important to you
• You value longer battery life for extended viewing
• Design aesthetics and lighter weight matter for your space
• You frequently need to project in different rooms with varied wall spaces

Choose the BenQ GS50 if:

• You regularly project outdoors or in challenging environments
• Maximum brightness and contrast ratio are priorities
• You need weather resistance and durability
• Superior audio performance is important
• You want a projector that doubles as a Bluetooth speaker

For home theater enthusiasts, neither projector truly qualifies as a dedicated home theater solution due to brightness limitations. However, the BenQ's superior contrast ratio makes it the better choice for dedicated dark-room movie viewing.

In the end, both the ASUS ZenBeam L2 and BenQ GS50 represent impressive technological achievements in the portable projector space. They each balance the competing demands of portability, image quality, and usability in different ways, allowing consumers to choose the model that best aligns with their specific needs.

The rapid advancement of this product category suggests we'll continue to see improvements in brightness, battery life, and smart features in the coming years. But for now, these two projectors represent some of the best options available for taking your big-screen entertainment anywhere you want it.

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