BenQ GS50: problems, parts and running costs
Checked: 2026-10-17
Summary
Running cost is electricity plus a service-center battery replacement; it is a buy only for outdoor, battery-powered, dark-room use.
Common problems and fixes
- Weak HDR — PCMag found HDR10 midtones dark and dull with no HDR brightness control; What Hi-Fi found dark HDR scenes washed out, sometimes unwatchable. Feed SDR instead. [6][10]
- 24p motion judder — What Hi-Fi describes an unnatural, staccato judder on camera pans from any source, with no setting that fixes it. [10]
- Netflix is not natively supported — CNET’s workaround is sideloading via Aptoide plus the phone app’s mouse function, standard definition only and sluggish. Use the dongle’s other apps or an external streamer. [9]
- Input lag is a configured best case — the 22.7 ms Game-mode figure needs firmware v01.00.17.00 or newer with Keystone and Corner Fit at zero and an exact 1920x1080 signal; PCMag measured 42 ms at 1080p 60Hz. [6][10]
- Cannot watch and charge at once — the USB-C power-bank input cannot run the projector while charging the internal battery. [9]
Parts and consumables
- LED light source — rated 20,000 hours Normal and 30,000 hours ECO; replacement is not user-serviceable. [2]
Yearly running cost
Typical power consumption is 65 W and there are no subscriptions, pods or filters; the main running cost is electricity, with occasional firmware updates (user-serviceable via a FAT32 USB stick) and streaming-app work. The battery is the real long-term cost: it is warranted for only one year, fades with charge cycles, and replacement goes to a service center at an unpublished price. No yearly dollar figure is published.
When it is a good buy
The only documented figures are the $799 launch MSRP in 2021, a $549 street figure PCMag displayed in 2022, and the $699 What Hi-Fi saw in August 2024. The defensible case is narrow: real 1080p, outdoor-ready drop and splash protection, a 3-year projector warranty that PCMag notes is two years longer than its portable competitors, and the best sound in the class. Buy it for camping, a backyard screen or a cabin, in the dark, on a battery. If the projector will never leave the house, the same money buys a brighter, better-picture home projector.
Alternatives:
- BenQ HT2050A — CNET’s pick for indoor use: significantly brighter with far better picture quality for the same money. [9]
- Anker Nebula Mars 3 Air — What Hi-Fi says it can look more dynamic in moderately bright conditions despite lower brightness. [7]