Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | BenQ - TK860i | BenQ - W5800 |
|---|---|---|
| Brightness | 3300 lm | 2600 lm |
| Light source | Lamp | Laser |
Between the TK860i and W5800, the TK860i comes out ahead in brightness, while the W5800 wins on light source. Overall, the TK860i scores 76.6 and the W5800 scores 71.1 on our Mars Score.
Which should you buy?
The TK860i edges ahead on the Mars Score (76.6 vs 71.1), but the 5.5-point gap is small enough that the right pick comes down to which spec advantages matter to you.
Pick the TK860i if you care most about brightness. The biggest gaps in its favor are brightness. The single most decisive one: Brightness — 26.92% more. 3300 lm vs 2600 lm.
Pick the W5800 if you care most about light source. Its strongest claims are light source. The single most decisive one: Light source: Laser (vs Lamp).
Both ship with comparable resolution, short-throw, so those specs do not separate the two — focus on the differences below.
Bottom line: the TK860i is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Which should you buy: BenQ - TK860i or BenQ - W5800?
BenQ - TK860i leads the current Mars Score by 5.5 points.The more useful decision is the trade-off behind that result: compare brightness, light source against the way you will actually use the product.
Choose BenQ - TK860i if…
BenQ - TK860i has the measurable edge on brightness lumens.
Choose BenQ - W5800 if…
BenQ - W5800 has the measurable edge on light source.
This is a structured comparison of the published catalog values. It is not a claim of identical real-world performance across every workload; use the linked spec drill-downs and methodology page to inspect the inputs.
Why BenQ - TK860i wins
- ▲Brightness — 26.92% more. 3300 lm vs 2600 lm.
Why BenQ - W5800 wins
- ▲Light source: Laser (vs Lamp).
Spec comparison
Image
| Spec | BenQ - TK860i | BenQ - W5800 |
|---|---|---|
| Resolutionⓘ | 4K | 4K |
| Brightnessⓘ | 3300 lmlead | 2600 lm |
| Contrast | 600000:1 | 2000000:1 |
| Light source | Lamp | Laserlead |
| Short-throw | false | false |
Smart & Connectivity
| Spec | BenQ - TK860i | BenQ - W5800 |
|---|---|---|
| Smart OS | Android TV | None |
| HDMI inputs | 2 | 2 |
| Built-in speakers | truelead | false |