Creality Space Pi SE Filament Dryer vs SUNLU S4 Four-Spool Filament Dryer
Head-to-head spec comparison to help you pick the right environment upgrade for your needs.
Creality
$46
SUNLU
$169
Spec-by-Spec Comparison
| Spec | Creality Space Pi SE Filament Dryer | SUNLU S4 Four-Spool Filament Dryer |
|---|---|---|
| Category | Filament dryer | Filament dryer |
| Role | Value dryer | Multi-spool drying station |
| Max Temp | 70 C | 70 C |
| Capacity | 1 spool | 4 spools |
| Active Heat | Yes | Yes |
| Active Airflow | No | Yes |
| Humidity Readout | Yes | Yes |
| Print Through | Yes | Yes |
| Ventilation | No | No |
| Resin Workflow | No | No |
| Abrasive Ready | No | No |
| Best Materials | PLA+, PETG, TPU | PETG, TPU, nylon, PLA+ |
| Footprint | Small bench box | Large bench station |
| Price | $46 | $169 |
| Rating | 8.2/10 | 9.1/10 |
| Buy on Amazon | Buy on Amazon |
Pros & Cons
Creality Space Pi SE Filament Dryer
Pros
- Affordable entry point for users who need a real dryer before buying a full humidity-control setup.
- Compact enough for cramped desks, dorm benches, and one-printer workstations.
- Best fit for occasional PETG, PLA+, and TPU rescue cycles where multi-spool capacity is unnecessary.
- Pairs well with sealed storage boxes: dry one spool, store the rest.
Cons
- Not the right choice for frequent nylon or multi-spool workflows.
- A lower-cost dryer still needs discipline: label materials, track cycles, and store dry rolls immediately.
- Limited station capacity means you will outgrow it if you print several materials every week.
SUNLU S4 Four-Spool Filament Dryer
Pros
- Four-spool capacity makes it the cleanest single purchase for AMS-style benches, color swaps, and households with several open rolls.
- Active heat plus circulation solves the two-part drying problem: warming the spool and moving humid air away from the filament surface.
- Print-through workflow reduces the chance that a dried nylon, TPU, or PETG spool immediately reabsorbs moisture while a long job runs.
- The higher price is easier to justify when you would otherwise buy two single-spool dryers plus separate dry boxes.
Cons
- Overkill for a one-printer PLA bench where a sealed storage box and occasional single-spool dryer would do the job.
- Large footprint demands a real bench position, not a corner shelf.
- Multi-spool dryers do not replace labeled dry storage; partial rolls still need sealed long-term storage after the print.
Our Verdicts
Creality Space Pi SE Filament Dryer
The Creality Space Pi SE is the value move for a bench that needs moisture diagnosis more than a permanent drying station. Buy it when you want to prove wet filament is the problem, not when you already know you need to keep four rolls ready at once.
SUNLU S4 Four-Spool Filament Dryer
The SUNLU S4 is the best launch pick for a printer owner who has moved past one open PLA roll and now needs an actual humidity-control station. It is not the cheapest way to dry a spool, but it is the most coherent way to keep several filaments usable, print from the box, and stop treating wet PETG or nylon as a printer-tuning mystery.