Nebula Cosmos 4K SE Portable Projector
Today
Typical price$1,100
Amazon: the cheapest today among the stores checked
Buy on AmazonNebula Cosmos 4K SE Portable Projector or Optoma GT2300HDR?
GT2300HDR costs $1 less today, across the stores checked.
Nebula Cosmos 4K SE Portable Projector is the cheaperOptoma GT2300HDR is $1 the cheaper
The comparison in detail
Optoma GT2300HDR
Today
Typical price$1,099
Amazon: the cheapest today among the stores checked
Buy on AmazonAffiliate links: if you buy, the store pays us a commission at no cost to you.
Both prices over the last 30 days
First data point for one of the two: the chart appears as the days go by.
Still only a few days of data for both to read the trend; the chart fills in as the days go by.
Where is each one cheapest today?
Updated 07/11/2026
Cosmos 4K SE Portable Projector
- Amazon Lowest price$1,100Buy on Amazon
GT2300HDR
- Amazon Lowest price$1,099Buy on Amazon
Spec sheet side by side
| Item | Cosmos 4K SE Portable Projector | GT2300HDR |
|---|---|---|
| Specs | ||
| Type changes | Portable | Home |
| Brightness changes | 1,800 lm | 3,600 lm |
| 4K changes | Yes | not listed |
| General | ||
| Model changes | Cosmos 4K SE Portable Projector | GT2300HDR |
Other comparisons
Cosmos 4K SE Portable Projector orEpson PowerLite L260F 3LCD Projector$1,079Compare- GT2300HDR orEpson PowerLite L260F 3LCD Projector$1,079Compare
Cosmos 4K SE Portable Projector orViewsonic LSD400HD-ST Bright 4000 Lumens 1080p Short Throw Laser Projector$1,082Compare- GT2300HDR orViewsonic LSD400HD-ST Bright 4000 Lumens 1080p Short Throw Laser Projector$1,082Compare
How we choose
Source: Catalog of partner stores, checked on 07/11/2026.
Lowest price seen for the product in the stores we read, on the day it was read, before sales tax. The model is the brand plus the name of the projector; the versions go in the table. The price range, the median and the position use only models with a score; the price comparison looks at models whose score is within 0.5 points.
The spec score doesn’t measure real contrast or noise or durability, and the strong or weak point reading is just a comparison of numbers, not a buying recommendation.