Our take
Choose the ZenBeam Go E1Z when a pocketable projector and integrated battery matter more than native detail or brightness. ASUS specifies 854 × 480, 150 lumens, USB connectivity and up to five hours from a 6,400 mAh battery. The 120-inch maximum is a manufacturer size claim, not a promise that the low-output image will suit a lit room at that size.
For a mobile user who values a battery and USB source path over image detail.
It is not a fit for bright rooms, large detailed images, native HD or 4K, HDMI-first source setups, or a buyer who requires a streaming-app platform.
Pros & cons
What could work for you, and what to consider before buying.
What works in its favor
- At 307 g, the projector is designed to travel with a mobile device.
- ASUS specifies a 6,400 mAh battery with up to five hours and power-bank use.
- USB connection, automatic keystone and a 2 W speaker support simple temporary setup.
What to weigh up
- Native WVGA 854 × 480 is far below Full HD detail.
- The 150-lumen rating is not identified as ANSI and favors a dark, modest-size picture.
- USB app compatibility and DRM restrictions can affect source playback.
Specifications and exact model details
The key details
| Model covered | E1Z |
|---|---|
| Image format | WVGA 854 × 480 DLP |
| Rated light output | 150 ASUS lumens; ANSI method not stated |
| Placement | Portable 6,400 mAh battery; 1.4:1 throw |
Performance figures are manufacturer claims. Source checked October 16, 2026. Regional models and included accessories can differ.
Full review: how the features affect your choice
What the features mean for you
What image detail does a pocket projector provide?
ASUS specifies native WVGA 854 × 480 for the E1Z and says Full HD video is scaled down to that panel. That is useful for casual viewing or sharing simple content, but it is a clear limit for fine text, detailed sports graphics and film subtitles. A higher-resolution source cannot create native pixels the projector does not have. The 15–120 inch diagonal range in ASUS's page describes supported sizing, not equal clarity at every size. Keep the screen modest and compare a WXGA or Full HD portable model if image detail is more important than carrying weight.
How much light should you expect?
ASUS lists 150 lumens for the RGB LED source, without identifying ANSI as the measurement method. Keep the figure in ASUS's wording and do not compare it directly to ANSI-rated home or presentation projectors. The low output points toward a darkened room and a smaller practical picture, despite the page's maximum 120-inch size. Ambient light, screen surface and battery/brightness settings also affect the image. If viewers need lights on, if the wall is large or if the projector will show slides, a higher-output model with a documented ANSI figure is a more suitable place to start.
Does the battery remove the outlet constraint?
The E1Z includes a 6,400 mAh internal battery that ASUS rates for up to five hours of projection, and it can serve as a power bank for mobile devices. That gives it a real mobility advantage over a lamp projector that needs AC. Runtime is a manufacturer estimate for a full charge, not a measurement of a particular aged battery. Brightness setting, connection method and battery condition can change the result. For a used unit, ask whether the battery still holds charge and check its charging cable. The battery is most useful for short sessions away from a convenient outlet.
What is the USB source path?
ASUS describes USB connection to a compatible phone, tablet, laptop or PC and identifies a DisplayLink app for some mobile devices. A device must support the required host/storage mode, and ASUS notes that some DRM-protected content may not play through an external device. Those are compatibility conditions worth checking before relying on the projector for a particular streaming service. The reviewed product pages do not document an onboard streaming-app platform. Treat the E1Z as a USB-connected display and verify the actual phone, adapter, application and content restrictions before taking it on a trip.
Can the throw and audio suit a small room?
ASUS lists a 1.4:1 throw ratio, a fixed lens and a 15–120 inch image range at 0.5–3.7 m. The small device can be placed on a desk or shelf, but it is not ultra-short throw; distance still determines size. Automatic keystone can correct angled placement, though a square position is preferable. The 2 W speaker adds audio without another box for a very small audience, while headphones are also an option. Compare the E1Z with the released ASUS S1 if a higher 200-lumen figure and its different input package matter, while checking each model's exact battery and native resolution.
Compare for your needs
The ASUS S1 is a separate released model with its own 200-lumen and battery specifications. The E1Z's documented native WVGA resolution and 150-lumen figure should not be transferred to the S1 or to another E1 model.
Find the video projector that fits you.
Tell us what matters. We’ll help you weigh the options.
Before you buy
Is the E1Z native 1080p?
No. ASUS specifies native WVGA 854 × 480 and says Full HD input is scaled to fit the panel.
How long does the battery last?
ASUS rates the 6,400 mAh battery for up to five hours; a used battery's actual runtime can be shorter.
Can it play every streaming app over USB?
ASUS notes device compatibility and DRM limits, and the checked pages do not document built-in streaming apps.
Where can I check the current price?
Use the Amazon link for current offers. Check the exact model, seller, product condition, delivery, and return terms. This page does not display a live price or confirm stock.
Sources and review basis
Sources & review basis
We use the linked product documentation for the features above. Our suitability notes and buying advice are editorial judgments based on those features, not measured performance results.
- ASUS ZenBeam Go E1Z product page and support manuals ↗ — checked October 16, 2026.
- ASUS ZenBeam Go E1Z product page ↗ — checked October 16, 2026.
- ASUS ZenBeam Go E1Z support and manuals ↗ — checked October 16, 2026.
The decision
The E1Z prioritizes a light body, USB source path and battery. Choose it for small dark-room viewing, and treat its low native resolution and output as real limits.
Is it the right fit?
Check the exact model and today’s offers on Amazon.