Optoma HD39HDR
Score: 84/100
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 HD39HDR combines 4,000 ANSI lumens with an 8.4 ms input lag, delivering bright, low-lag visuals for gaming and cinema. It is limited by a lack of lens shift and relies on a lamp that will eventually need replacement, with only a 10 W speaker. Suited for budget-conscious gamers seeking high brightness.
| Attribute | | |
|---|---|---|
4,000 lumens | 5,500 lumensbest | |
50,000 | 3,000,000best | |
1.3best | — | |
4.25 metersbest | — | |
15,000 hours | 30,000 hoursbest | |
1.3 | 1.7best | |
10 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) | 4000 lumens | 5500 lumens |
Contrast Ratio | 50000 | 3000000 |
Projection Geometry(2) | ||
Throw Ratio | 1.295 | 1.2-2.04 |
Throw Distance (meters) | 4.25 meters | 1.0-10.96 meters |
Lighting(2) | ||
Lamp Life (hours) | 15000 hours | 30000 hours |
Light Source | Lamp | laser |
Features(1) | ||
Zoom Ratio | 1.3 | 1.7 |
Audio(1) | ||
Speaker Power (watts) | 10 watts | 15 watts |
Connectivity(1) | ||
HDMI Ports | 2 | 1 |
Build & Design(1) | ||
Weight (kg) | 3.49 kg | 4.85 kg |
Battery & Power(1) | ||
Power Consumption (watts) | 285 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 commend the HD39HDR for its impressive 4,000-lumens brightness, low 8.4 ms input lag, and high contrast, making it a strong choice for HDR gaming and home cinema. They also appreciate its quiet operation and flexible throw ratio, but point out the missing lens shift and modest built-in audio as drawbacks.
Everyday users love the projector's vivid brightness in lit rooms, the responsive 120 Hz gaming experience, and the long lamp lifespan, while common complaints focus on fan noise, occasional rainbow artifacts, and the need for external speakers due to weak onboard audio.
“120Hz feels responsive”
“incredible HDR on massive screens”
