Choosing the Best Filament Dryer: SUNLU S4 vs Sovol SH01
As 3D printing enthusiasts, we understand that filament quality can make or break your prints. Moisture in filament can lead to defects and poor adhesion, so choosing the right filament dryer is crucial. In this comparison, we pit the SUNLU Official Filament Dryer S4 against the Sovol SH01 to help you make an informed decision based on your needs and budget.

SUNLU Official Filament Dryer S4, 2026 Newest 3D Printer Filament Dry Box, Upgraded 4-Spool Filament Dehydrator, Auto Humidity Control, Fast Heating, Temperature Balance, Filaments Storage Box

3D Printer Filament Dryer, Sovol SH01 Filament Dehydrator Spool Holder, Dry Box for Keeping Filament Dry During 3D Printing, Compatible with 1.75mm, 2.85mm PLA PETG TPU ABS Material
Our Recommendation
The SUNLU Official Filament Dryer S4 is the definitive choice for 3D printing enthusiasts looking for advanced features and superior performance. Its ability to handle multiple spools, fast heating, and real-time humidity control make it ideal for serious users. While it comes at a higher price, the benefits it offers justify the investment, especially for those committed to ensuring high-quality prints.
Detailed Comparison
Display
The SUNLU S4 features an intuitive digital display that shows real-time humidity levels and temperature settings, making it easy to monitor your filament's condition. In contrast, the Sovol SH01 has a simpler design with no digital readout, relying instead on a basic control knob for temperature settings. For users who prefer detailed information at a glance, the SUNLU S4 takes the win here.
Performance
The SUNLU S4 excels in its fast heating capability, reaching optimal temperatures quickly and maintaining them with automatic humidity control. It can accommodate up to four spools simultaneously, making it suitable for users with diverse printing materials. Meanwhile, the Sovol SH01 is also effective but less advanced, with slower heating times and only one spool capacity. Thus, for performance, the SUNLU S4 is the clear leader.
Build Quality and Design
In terms of build quality, both products are well-constructed, but the SUNLU S4 has a more robust design that feels premium. It features a solid exterior and a well-sealed chamber that optimally retains heat and humidity levels. The Sovol SH01, although sturdy, has a more basic design and lacks some of the insulation features that make the SUNLU stand out. Therefore, the SUNLU S4 wins in this category as well.
Price and Value for Money
With a price tag of £99.99, the SUNLU S4 is significantly more expensive than the Sovol SH01 at £38.74. However, given its advanced features, better performance, and capacity for four spools, many users may find the SUNLU to be worth the investment, especially for serious hobbyists or professional use. The Sovol SH01, while cheaper, may be better suited for casual users who are looking to save money without needing advanced features. Here, Sovol SH01 offers better value for those on a budget.
Overall User Experience
User feedback shows that both products perform their intended functions well, but the SUNLU S4 receives higher ratings for user experience, particularly for its ease of use and effectiveness in maintaining filament quality. The Sovol SH01, while effective, has received feedback about its simpler functionality and lack of advanced features. Thus, for an overall excellent user experience, the SUNLU S4 is the preferred choice.
In summary, the SUNLU Official Filament Dryer S4 outshines the Sovol SH01 in almost every category, especially regarding performance, display quality, and design. However, the Sovol SH01 remains a solid choice for those looking for a basic, budget-friendly solution.
Buy the SUNLU Official Filament if...
Buy the SUNLU S4 if you are a dedicated 3D printing enthusiast who frequently changes materials and wants the best protection for your filament. It's also ideal for users who print in higher volumes and need reliable performance and advanced features to ensure the highest print quality.
Buy the 3D Printer Filament if...
Choose the Sovol SH01 if you're new to 3D printing or on a tight budget and need a functional solution to keep your filament dry. It's perfect for occasional users who don't require multiple spool storage and are looking for a straightforward, cost-effective option.
Curated by The Print Lab on All The Top Picks
As an Amazon Associate we earn from qualifying purchases.
