In terms of material properties, Smart Toilet PRO Edition Ceramic and ABS nano-antibacterial ceramics (JIS Z 2801 certification) antibacterial rate of 99.9% (ordinary ceramics 85%), surface Mohs hardness level 7 (ABS only level 3), Scratch life over 15 years (ABS average 8 years). The ABS material (impact strength 45kJ/m²) has a damage rate of only 0.5% (ceramic 3.2%) in the drop test (1.5m height), is suitable for high humidity (humidity > 80% RH) and has a weight reduction of 40% (ceramic holder 4.2kg vs. ABS 2.5kg).
Cost-benefit analysis shows that the initial price of the ceramic model is ￥8,500 (ABS model ￥5,200), but the annual maintenance cost is as low as ￥120 (ABS￥300). A hotel group adopts ceramic plate (200 daily uses), the total cost of 5 years is ￥9,100 (ABS￥12,500), and the return on investment (ROI) is increased by 37%. The self-cleaning technology of the ceramic glaze (contact Angle > 110°) reduces the cleaning frequency from once a day to once a week, and saves ¥2,300/ year/unit.
In the durability test, the deformation of the ceramic matrix after 500,000 times of sitting pressure test (load 150kg) is less than 0.02mm (ABS 0.8mm), and the life of the seal ring is more than 10 years (ABS 5 years). According to TOTO laboratory data, the wear rate of ceramic spires in sand-containing water (0.1g/L) is only 0.001mm/ year (ABS 0.01mm), and the failure rate ranges from 0.8% to 0.05%.
In terms of environmental adaptability, ABS (operating temperature -30℃~70℃) has better crack resistance than ceramics in the northern cold (-25℃) (the passing rate of cold and hot cycle test is 99% vs. Ceramics 92%). The ceramic model has stable performance (98% bending strength retention rate) under high temperature disinfection (85℃ steam), which is suitable for medical scenarios.
In terms of installation and maintenance, the installation time is reduced to 30 minutes for ABS models (60 minutes for ceramics), and the adaptability is improved by 90% due to the modular design (tolerance ±0.5mm). However, its chemical tolerance is weak: after 1 year of continuous use of toilet cleaning agent (pH 2), the surface atomization degree of ABS reaches 15% (ceramic 0.5%), and the decrease of light transmittance affects the appearance.
In terms of environmental protection indicators, the ceramic model uses 30% recycled porcelain powder (95% recovery rate), and the carbon emission of a single piece is 12kg (ABS 8kg), but it can be 100% recycled. Although the production energy consumption of ABS is 30% lower (1.2kWh per piece vs. 1.7kWh for ceramics), it takes 500 years to degrade (ceramics can be crushed to landfill). The EU EPD certification shows that the full life cycle environmental impact index (LCIA) of ceramics is 22% lower than that of ABS.
In the market verification case, the user satisfaction of high-end residential projects using ceramic models (customer unit price ￥15,000) reached 98% (ABS models 89%), because of the warm touch (heat conduction coefficient 1.1W/m·K vs. ABS 0.2W/m·K) and the winter body feel comfortable. Public places (such as airports) prefer ABS because it is lightweight (35% lower transportation costs) and crash-resistant (72% lower average daily risk of collision).
Selection strategy: Daily use > 50 times/toilet space, sufficient budget (> ￥8,000) and pay attention to long-term hygiene (hospital/hotel) select ceramics; Budget sensitive (< $6,000), need to move frequently (mobile medical vehicles) or extreme climate areas priority ABS. The hybrid solution (ceramic matrix +ABS cover) balances cost (￥7,200) with performance (failure rate 0.1%).