Optoma HD28HDR
Score: 83/100
ViewSonic LS901-4K
Score: 89/100Rankings
The ViewSonic LS901-4K is a professional-grade laser projector delivering 5,500 lumens and a 3,000,000:1 contrast ratio for large-venue installations. Its laser source and extensive adjustment options add flexibility but bring higher power consumption and cost. Best for corporate, education or home-theater users needing bright, high-contrast images and advanced installation features.
The Optoma HD28HDR offers 3,600 ANSI lumens and an 8.4 ms input lag, providing bright, responsive performance for gaming and movies. It lacks lens shift and has a modest 3 W speaker, and its lamp warranty is short. Ideal for competitive gamers and home-theater setups where mounting flexibility is less critical.
| Attribute | | |
|---|---|---|
3,600 lumens | 5,500 lumensbest | |
50,000 | 3,000,000best | |
1.5best | — | |
5.41 metersbest | — | |
15,000 hours | 30,000 hoursbest | |
1.1 | 1.7best | |
3 watts | 15 wattsbest | |
2best | 1 |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Display(4) | ||
Resolution | 1920x1080 | 3840x2160 |
Native Resolution | 1920x1080 | 3840x2160 |
Brightness (lumens) | 3600 lumens | 5500 lumens |
Contrast Ratio | 50000 | 3000000 |
Projection Geometry(2) | ||
Throw Ratio | 1.545 | 1.2-2.04 |
Throw Distance (meters) | 5.41 meters | 1.0-10.96 meters |
Lighting(2) | ||
Lamp Life (hours) | 15000 hours | 30000 hours |
Light Source | Lamp | laser |
Features(1) | ||
Zoom Ratio | 1.1 | 1.7 |
Audio(1) | ||
Speaker Power (watts) | 3 watts | 15 watts |
Connectivity(1) | ||
HDMI Ports | 2 | 1 |
Build & Design(1) | ||
Weight (kg) | 3.88 kg | 4.85 kg |
Battery & Power(1) | ||
Power Consumption (watts) | 295 watts | 245 watts |
After‑Sale(1) | ||
Warranty (years) | 1 years | 3 years |
Products in the top-left offer the best value (high score, low price).
Professional reviewers consider the HD28HDR a strong value proposition for gamers and home-theater enthusiasts, applauding its ultra-low 8.4 ms input lag, bright 3,600 lumens output, HDR support, and quiet operation. However, they caution about the modest built-in audio, absence of lens shift, and a relatively short lamp warranty, suggesting that external speakers and careful installation are advisable.
Everyday users praise the projector's ability to deliver massive, bright images and responsive gaming performance, especially the low lag and quiet fan. Common complaints focus on the weak internal speaker, the need for precise throw-distance setup, and disappointment with the limited lamp warranty.
“unrivaled detail up to 301 inches”
“low lag for fast-paced play”
