Creality Filament Dryer Box 2.0 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 Filament Dryer Box 2.0 | SUNLU S4 Four-Spool Filament Dryer |
|---|---|---|
| Category | Filament dryer | Filament dryer |
| Role | Budget 65 C dryer | Multi-spool drying station |
| Max Temp | 65 C | 70 C |
| Capacity | 1 spool | 4 spools |
| Active Heat | Yes | Yes |
| Active Airflow | Yes | 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 | 7.8/10 | 9.1/10 |
| Buy on Amazon | Buy on Amazon |
Pros & Cons
Creality Filament Dryer Box 2.0
Pros
- Affordable entry point for users who need a real 65 C 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
- Weaker than newer 70 C Space Pi units and multi-spool stations for serious nylon or engineering-filament work.
- 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 Filament Dryer Box 2.0
The Creality Filament Dryer Box 2.0 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 cheaply; step up to SUNLU S2, Space Pi Plus, or a multi-spool station when higher temperature, longer timers, or multiple rolls matter.
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.