xTool S1 40W
#11 in DiodeFull review
A powerful enclosed diode laser for hobby shops and small sellers who cut a lot of wood and want a big bed. Budget for the air assist pump.
Amazon $1,699$1,699
The xTool S1 40W is the better laser engraver overall, rated 3.4 to 3.2. The xTool S1 40W leads on features. The Sculpfun SF-A9 40W costs $140 less ($1,559 vs $1,699).
Sculpfun SF-A9 40W
#13 in DiodeFull review
For hobbyists who want 40 W of cutting power with air assist in an open frame. The Amazon bundle price is high next to rivals.
Amazon $1,559$1,559
Prices were last checked November 2, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Which should you buy?
- Choose the xTool S1 40W for features (enclosed, autofocus vs air assist).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every diode laser engraver; a clear win is highlighted. How we rank explains each one.
| Factor weight | xTool S1 40W | Sculpfun SF-A9 40W |
|---|---|---|
| Overall rating | 3.4/5 | 3.2/5 |
| Value 35% | 45 $42.48 per optical watt ($1,699, 40 W) | 50 $38.98 per optical watt ($1,559, 40 W) |
| Work area 15% | 99 498 x 319 mm work area | 100 400 x 400 mm work area |
| Features 30% | 50 enclosed, autofocus | 25 air assist |
| Warranty 20% | 50 1-year warranty | 50 1-year warranty |
Specifications
| xTool S1 40W | Sculpfun SF-A9 40W | |
|---|---|---|
| Laser | ||
| Type | Diode | Diode |
| Optical power | 40 W | 40 W |
| Electrical input | 275 W | - |
| Work area | 498 x 319 mm | 400 x 400 mm |
| Maximum speed | 600 mm/s | 600 mm/s |
| Safety class | Class 1 | - |
| Features | ||
| Enclosed | Yes | No |
| Camera | No | No |
| Air assist | No | Yes |
| Autofocus | Yes | No |
| Weight | 44.1 lb | - |
| Warranty | 1 year | 1 year |
| Released | 2023-10-18 | - |