The catch
Epson Lifestudio Flex Plus
Battery, optical zoom and lens shift are all missing, and powering it over USB-C lowers brightness.
Side by side
Epson Lifestudio Flex Plus vs BenQ GV50 compared: GV50 brings a battery and not a shorter 100-inch setup
Quick verdict
If avoiding DLP rainbow flashes matters and you can keep it powered, the Epson Flex Plus is the pick. If a built-in battery is why you're buying a portable projector, take the BenQ GV50. For an uncorrected 100-inch picture, both need roughly 8.7 feet from lens to screen, so the BenQ doesn't solve a shorter room by itself.
Before you buy
Why, and what it costs you
The nominal distance for a 100-inch picture is the same
In a short room, neither fixed lens comes out ahead.
Where this comes from
100 × 16 ÷ √337 × 1.2 ÷ 12 = 8.72 feet is the distance for a 16:9 picture.
The catch
BenQ GV50
Even with a 4K source, the native image stays 1080p. With a 500 ANSI-lumen spec, plan on controlling room light.
Epson Lifestudio Flex Plus
- Why pick it
- 3LCD imaging, free of the DLP rainbow effect, is what you want.
- A pixel-shifted 4K image appeals to you and you'll use external power.
- The catch
- Battery, optical zoom and lens shift are all missing, and powering it over USB-C lowers brightness.
BenQ GV50
- Why pick it
- Occasional cable-free viewing means you need an internal battery.
- Native 1080p will do in your dark-room setup.
- The catch
- Even with a 4K source, the native image stays 1080p. With a 500 ANSI-lumen spec, plan on controlling room light.
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What this page compares
Bedroom and ceiling viewing with Epson Flex Plus or BenQ GV50 comes down to battery freedom, image detail and how much distance a 100-inch picture needs.
If avoiding DLP rainbow flashes matters and you can keep it powered, the Epson Flex Plus is the pick. If a built-in battery is why you're buying a portable projector, take the BenQ GV50. For an uncorrected 100-inch picture, both need roughly 8.7 feet from lens to screen, so the BenQ doesn't solve a shorter room by itself.
Which one fits
Pick the situations that sound like you
I need to watch where there is no outlet
Power comes from an internal battery on the GV50. The Flex Plus needs external power despite a compact shape that makes it easy to move.
- Epson Lifestudio Flex Plus
- Not suitable
- BenQ GV50
- Better fit
I get bothered by DLP rainbow flashes
The GV50 uses single-chip DLP, while Epson uses 3LCD imaging, which avoids the rainbow flashes of sequential-color DLP.
- Epson Lifestudio Flex Plus
- Better fit
- BenQ GV50
- Caution
At 8.7 feet, I want 100 inches
The nominal throw ratio is 1.2 on both. For a 100-inch 16:9 picture, that works out to roughly 8.7 feet from lens to screen.
- Epson Lifestudio Flex Plus
- Good
- BenQ GV50
- Good
My projector has to have a 4K display
The Epson makes a pixel-shifted 4K PRO-UHD image. Although the GV50 accepts a 4K input signal, its native display is 1080p.
- Epson Lifestudio Flex Plus
- Good
- BenQ GV50
- Not suitable
In practice
Differences you will notice
The nominal distance for a 100-inch picture is the same
In a short room, neither fixed lens comes out ahead.
How we worked this out
100 × 16 ÷ √337 × 1.2 ÷ 12 = 8.72 feet is the distance for a 16:9 picture.
Portable is not the same as self-powered
Despite a stand and handle that make it easy to move, the Flex Plus still needs outside power.
How we worked this out
No internal battery is in the Epson. For the GV50, BenQ explicitly lists a built-in battery.
Accepting 4K does not mean showing 4K
High-resolution inputs are accepted by the GV50, yet its native display stays at 1080p.
How we worked this out
Among supported input resolutions BenQ lists 3840 × 2160, and its native resolution is listed as 1920 × 1080.
Plug in your numbers
Will either projector work in your room?
This checks hard limits only. Personal preferences are left out of the math.
Epson Lifestudio Flex Plus
Does not work with your numbersFor a 120-inch 16:9 picture, the calculated lens position is about 10.46 ft. You entered 9.50 ft.
BenQ GV50
Does not work with your numbersFor a 120-inch 16:9 picture, the calculated lens position is about 10.46 ft. You entered 9.50 ft.
Measure distance from the lens to the screen. The math assumes a 16:9 picture and uses the verified throw range for each exact model.
Option A
Epson, EF-72 / V11HB76620
Lifestudio Flex Plus
This 3LCD model sits on a swivel stand and offers 4K Enhancement imaging, Google TV and Bose audio, and it shows no DLP rainbow artifacts.
- Best for
- Simple setup, no rainbow artifacts
Facts we checked
- 1,000 lumens of color brightness equal to white brightness, from a 3LCD LED engine
- For 65–150-inch images, 4K PRO-UHD pixel shifting
- 2 × 5W Bose speakers, EpiqSense auto setup and Google TV
Option B
BenQ, GV50
GV50
This 1080p portable has a built-in battery, a rotating stand that works well for ceiling projection, Google TV and capable 2.1-channel sound.
- Best for
- Portability that works unplugged
Facts we checked
- 1080p laser light engine at 500 ANSI-lumen, with built-in battery
- A 360-degree rotating base with 135-degree vertical adjustment
- An 18W 2.1-channel speaker system and Google TV
Spec by spec
Where they really differ
| Spec | Epson Lifestudio Flex Plus | BenQ GV50 | In practice |
|---|---|---|---|
| Built-in battery | No | Yes | The GV50 alone can begin a session without external power. |
| Image system | 3LCD with pixel-shifted 4K PRO-UHD | Native 1920 × 1080 DLP | Supporting a 4K input does not turn the GV50 into a 4K-display projector. |
| 100-inch optical distance | About 8.7 ft | About 8.7 ft | Before any digital correction, the throw ratio on both is fixed at 1.2. |
| Optical zoom | None | Fixed lens | Rotating the stand changes the aim and leaves the lens distance for a given size alone. |
| Published light output | 1000 ISO white lumens, 1000 IDMS color lumens | 500 ANSI lumens | Since the labels differ, this table makes no claim of a two-to-one measured brightness gap. |
Trade-offs
What each pick costs you
With Epson Lifestudio Flex Plus
- Independent testing turned up mediocre brightness, weak dark-scene contrast and visible motion blur at 60Hz.
With BenQ GV50
- Running on battery can lower brightness, and with no optical zoom you can't resize the picture from a fixed position.
Decision guide
How to decide
The Epson Flex Plus fits when avoiding DLP rainbow flashes matters and you can keep it powered. The BenQ GV50 fits when a built-in battery is the reason to buy a portable projector. An uncorrected 100-inch picture takes roughly 8.7 feet from lens to screen on both, so the BenQ doesn't solve a shorter room by itself.
Settle the power arrangement before the stand
Beside a bed a tilting projector is convenient, yet a cable can still decide where it sits. The GV50's battery changes that constraint. Flex Plus fits a setup with external power available and where its 3LCD image is the priority.
Rotation won't change what the lens can do
Either model can be aimed at different surfaces, but a 100-inch 16:9 image still needs about the same optical distance. Check the path to the ceiling or wall as well as the length of the room's floor.
Judge the picture in the power mode you'll use
Light output can drop when you watch on battery or run on lower-power USB-C. Plan for a dark room and a sensible picture size. A maximum-output specification on mains power doesn't promise the same in battery mode.
What this page can’t tell you
- Distances are worked out for a 16:9 picture from lens to screen and leave out any digital correction. Add room for the projector body, cables, ventilation and installation tolerances.
- Published brightness is a manufacturer's specification and not a matched, calibrated measurement. ANSI and ISO ratings are never combined.
- Performance can change with firmware and picture mode, so check the exact model and selected operating mode and don't rely on a headline gaming or brightness figure.
- Without a verified usable-energy figure and a matching operating load, no battery runtime is estimated here.
- In the US, Epson's Flex Plus is identified as EF72 / V11HB76620. The lower-resolution Flex EF71 is not a substitute.
By the numbers
What the data shows
What we found across the home projectors we compare, plus the checked facts behind each finding.
How many fit
None of the 90 models checked meets all of “I want to lie in bed and watch on the ceiling”, “I run it somewhere without a power outlet”, and “I am bothered by rainbow flashes”, so the pick goes to the closest practical compromise.
0 models fit, out of 90 checkedShow the facts and the math
How we countedThe count uses each product's current fit ratings for “I want to lie in bed and watch on the ceiling”, “I run it somewhere without a power outlet”, and “I am bothered by rainbow flashes”. A need with no documented match is not counted.
| Product | Needs it meets | Facts we checked | Sources |
|---|---|---|---|
| Epson Lifestudio Flex Plus |
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| BenQ GV50 |
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Ready to buy
See today’s price and what owners say
Open either model on Amazon for the current price, customer reviews and delivery options.
Epson Lifestudio Flex Plus
3LCD imaging, free of the DLP rainbow effect, is what you want.
See price & reviews on AmazonBenQ GV50
Occasional cable-free viewing means you need an internal battery.
See price & reviews on AmazonEach link opens in a new tab.
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