Our take
The GP1 is a carryable older projector for buyers who value a 640 g body and direct USB Reader playback. BenQ documents native 858 × 600 SVGA resolution, an LED light source, and support for photo and movie files from USB storage. It needs its external power supply, so its portable body does not make it cordless. The manual does not establish an ANSI brightness value; compare it as a small-image option rather than a bright-room or Full HD projector.
A small-room or travel use where a light body and local USB files matter more than Full HD, cordless power, or app streaming..
It is not for battery-only travel, native HD or Full HD detail, a strict ANSI brightness threshold, HDMI-only sources, or current streaming apps.
Pros & cons
What could work for you, and what to consider before buying.
What works in its favor
- BenQ documents an approximate 640 g weight and compact 136 × 57 × 120 mm body.
- The USB Reader can play supported photo and movie files without a computer.
- An LED light source avoids the replaceable projection-lamp design used in many older projectors.
What to weigh up
- Native 858 × 600 resolution gives less detail than WXGA, 720p, or Full HD models.
- The manual specifies a 19 V external supply and does not document built-in battery operation.
- Brightness is not stated as ANSI and the manual does not list an HDMI input.
The key details
| Model covered | GP1 |
|---|---|
| Image format | Native SVGA 858 × 600 DMD image |
| Rated light output | The reviewed manual does not give an ANSI brightness figure |
| Placement | Approx. 640 g body; throw ratio and battery runtime are not established |
Performance figures are manufacturer claims. Source checked October 11, 2026. Regional models and included accessories can differ.
What the features mean for you
A compact body does not change its SVGA image
BenQ specifies an 858 × 600 SVGA DMD, a 4:3 image, and an approximate 640 g weight. That combination makes the GP1 physically small, but its native pixel count is far below current Full HD models. Text-heavy slides, fine interface details, and subtitles will show the limits sooner than a simple photo or casual clip. The projector accepts supported video files through its USB Reader, but decoding a file does not increase the panel resolution. Set expectations around a modest image size and a room that can be darkened.
USB playback is local media, not smart streaming
The GP1 manual describes a USB-A Reader for photo and movie files and an audio output that is available for USB Reader use. That is useful when a travel presentation or shared clip can be copied to a compatible drive. It does not document a Wi-Fi service, built-in apps, or a streaming platform. Its documented inputs include computer and analog video connections, so a modern HDMI-only laptop or streamer may need a separately checked converter path. Test the file format and storage device you plan to use before relying on it at an event.
Plan for an outlet even when carrying it
BenQ lists a 19 V DC power supply and 60 W typical consumption; the reviewed manual does not identify an internal battery. A light projector can move easily between rooms, but this one should be planned around a nearby outlet and its correct adapter. Do not treat a third-party battery pack or an accessory bundle as part of the model unless the exact offer documents it. For outdoor use or a trip with no reliable power, shortlist a model with an explicitly built-in battery and a published runtime instead.
Brightness and throw need a direct check
The source manual gives the light source but does not provide a comparable ANSI-lumen rating in the reviewed specifications. That keeps the GP1 out of any hard ANSI threshold match. The saved manual details do not establish a throw ratio either, so measure the intended screen distance and consult the complete BenQ placement table before choosing a stand. Brightness at the screen depends on size and room light; a compact body is not evidence that the image will remain clear at a large diagonal. Keep this model for small, controlled settings unless a reliable exact-model specification supports a broader use.
The LED design reduces one maintenance question
BenQ identifies an LED light source rather than a conventional projection lamp. That avoids assuming a lamp replacement interval from a different model, but it does not prove the condition or brightness of an old unit. Check the image, focus, fan behavior, connectors, remote, and power adapter on the actual projector. The manual's audio-output note is specifically tied to USB Reader playback, so verify the chosen source and sound path instead of assuming every input uses the same audio behavior. Existing file-reading convenience is not a substitute for checking the physical ports.
Choose it only when the simple workflow fits
The GP1 makes sense for a buyer who can carry an outlet-powered mini projector and use local USB media or compatible analog/computer inputs. It does not fit a requirement for cordless operation, native HD, a certified brightness floor, or current apps. BenQ's exact-model manual supports the identity and the features described here; it does not establish a current Amazon listing or the condition of any offered accessories. Search by the exact GP1 name, verify that the included adapter matches, and compare the projected image size with a modern portable model before choosing.
What else to compare
For cordless use, compare a projector with a documented internal battery and runtime. For higher detail, choose a native 720p or Full HD model. For HDMI-only sources, confirm a compatible input or adapter before buying.
Before you buy
Does the GP1 have a built-in battery?
BenQ's manual lists a 19 V external power supply and does not document internal battery operation.
Can it play a file from a USB drive?
Yes. BenQ documents a USB Reader for supported photo and movie files; that is local playback, not streaming apps.
Is the GP1 native 720p?
No. The exact-model manual specifies 858 × 600 SVGA resolution, below 1280 × 720.
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 & review basis
We use the following manufacturer documentation for the product features above. Our suitability notes and buying advice are editorial judgments based on those features, not measured performance results.
- BenQ GP1 official user manual ↗ — checked October 11, 2026.
- BenQ GP1 official user manual and specifications ↗ — checked October 11, 2026.
The decision
The GP1 trades native detail and cordless convenience for a light body and local USB playback. Its brightness and throw remain unqualified in the reviewed source set.
Is it the right fit?
Check the exact model and today’s offers on Amazon.