The difference that matters
The Optoma ZW350ST is brighter (3,600 lumens against 3,000). The BenQ TH671ST lists higher resolution (1080p). The Optoma ZW350ST uses a laser light source; the other uses a lamp.
Side by side
| Specification | BenQ TH671ST | Optoma ZW350ST |
|---|---|---|
| Brightness | 3,000 lm | 3,600 lm |
| Resolution | Full HD 1080p (1920 × 1080) | WXGA (1280 × 800) |
| Native aspect | 16:9 | 16:10 |
| Throw ratio | Not published | 0.521:1 |
| Distance for a 10.5 × 8 ft 4:3 screen | — | 6′ 7″ |
| Brightness on that screen | 27 fL | 36 fL |
| Light source | Lamp | Laser |
| Rated life | — | 30,000 h |
| Zoom | — | Fixed |
| Lens shift | — | — |
| Input lag | 16.67 ms | — |
| Price seen | $949 | $909 |
Highlighted rows differ. Figures come from each product's sources; room depth, distances and brightness are FOREference calculations using the same method for both.
Which should you choose?
Optoma ZW350ST
Choose the Optoma ZW350ST if your room has ambient light or a large screen or you want no lamp replacements.
Before you buy either
- Check the room: room size calculator and ceiling height calculator.
- Confirm what each seller includes — accessories, software trials and bundles change often.
- Read the limitations on each full reference page.
FOREference compares published specifications; we have not tested these products side by side. How we work · Disclosure