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Head-to-head · Best Outdoor Projectors

Anker Nebula Mars 3 vs BenQ GV31

Which is the better buy? Side-by-side on rating, price, strengths, and watch-outs — with the published ratings we averaged to get there.

The short answer

Anker Nebula Mars 3 comes out ahead by a clear margin (4.5 vs 3.9). The gap is mostly about Backyard movie nights, tailgates and campground cinema where you want the brightest battery-powered picture and the loudest built-in audio without dragging out an extension cord. — read the strengths below before deciding.

Anker Nebula Mars 3
Higher ratedRanked #1 in Best Outdoor Projectors
Anker Nebula Mars 3
$1,050as of May 23

The Mars 3 is the closest thing to a purpose-built outdoor projector on the market. Anker engineered it for the backyard with a rated IPX3 spray seal, half-meter drop resistance, a 5-hour battery and a 40-watt speaker that actually fills a yard. Projector Central measured 959 ANSI lumens against the 1000-lumen claim and called it Highly Recommended. The 1080p ceiling and the missing Netflix app are the only meaningful gripes.

Strengths
  • — Measured 959 ANSI lumens at Projector Central, the brightest in the under-$1000 portable class
  • — Built-in 185 Wh battery delivers up to 5 hours in eco mode, enough for a double feature
  • — IPX3 water resistance, 0.5 m drop resistance and a 0.7 mm dust seal verified by Projector Reviews
Watch-outs
  • — Heavy for a portable at 9.9 lb, more campsite-cooler than messenger-bag
  • — No native Netflix app inside the Android TV 11 build
  • — Bluetooth speaker pairing has noticeable sync lag even after the delay-adjust step
$1,050 · Check Price on AmazonFull review →
BenQ GV31
Ranked #5 in Best Outdoor Projectors
BenQ GV31
$599as of May 23

BenQ's GV31 is the most interesting form factor here: a rotating ball-in-a-cradle that aims anywhere from a low coffee table up to a 135-degree ceiling angle. The 300 ANSI LED engine is dim and the price is closer to $599 than budget, but the 5-hour audio/3-hour video battery, 2.1-channel speaker and clean Android TV stack with native Netflix make it the best 'fun shape' option in the roundup.

Strengths
  • — Rotating lens tilts up to 135 degrees, projecting onto walls, ceilings or angled garage doors
  • — 5800 mAh battery delivers 3 hours of video playback (5 hours music) per BenQ spec
  • — 2.1-channel speaker system with 8W woofer and dual 4W tweeters punches above projector norms
Watch-outs
  • — 300 ANSI lumens is the second-dimmest in this guide; outdoor use requires full nightfall
  • — Limited HDR support and no Dolby Vision
  • — Cylindrical body in cradle is not very stable on uneven yard surfaces without a tripod
$599 · Check Price on AmazonFull review →

How they stack up

Anker Nebula Mars 3

Pulls more measured lumens than the XGIMI Halo+ (959 vs 753 in identical Projector Central tests) and runs more than three times longer on battery than the Halo+. The Mars 3 Air is a third the weight at 3.7 lb but tops out around 399 ANSI lumens, less than half the Mars 3's output. Brighter and louder than the Samsung Freestyle 2nd Gen, but the Freestyle weighs an eighth as much.

BenQ GV31

Dimmer than the Anker Nebula Mars 3 Air at 300 vs 399 ANSI lumens but with a more interesting form factor and a stronger 2.1-channel audio system. Substantially dimmer than the Mars 3 or XGIMI Halo+ and not in the same outdoor-cinema league. Brighter than the Samsung Freestyle 2nd Gen at 300 vs 230 lumens and with native Netflix and a battery built in, no $189 accessory required.

Specs side-by-side

SpecAnker Nebula Mars 3BenQ GV31
Native Resolution1920 x 1080 (1080p)1920 x 1080 (1080p)
Brightness1000 ANSI lumens (959 measured)300 ANSI lumens
Light SourceLED, 25,000-hour rated lifeLED
Throw Ratio1.20:11.30:1
Screen Size40 to 200 inches30 to 120 inches
Speakers40W Dolby Audio (three-way)2.1-channel (8W woofer + 2x 4W)
Battery LifeUp to 5 hours (eco) / 2 hours (standard)—
Weight9.9 lb—
Weather ResistanceIPX3 water, 0.5 m drop, 0.7 mm dust—
Smart OSAndroid TV 11 with ChromecastAndroid TV with native Netflix
Battery—5800 mAh, up to 3 hours video / 5 hours music
Inputs—HDMI, USB-C with PD
Special Feature—135-degree rotating lens
← See the full ranking of best outdoor projectors