What are the differences between Bosch Aerotwin and Flat Wiper?

[KarterLynn]

Bosch Aerotwin and Flat Wiper have significant differences. Bosch Aerotwin: Aerotwin uses European imported materials assembled domestically, featuring multiple patented technologies and having won several international awards. It belongs to the U-type wiper category. The traditional frame wiper converts a single force point at the wiper arm connection into multiple force points on the wiper through a two-stage bracket transmission. This evenly distributes the downward pressure from the wiper arm across the wiper blade. The multiple pressure points on the wiper blade act on the internal steel strips, which then distribute the force more evenly to the rubber blade. It uses a U-type universal connector. Link: Bosch Automotive Parts Official Website - Wiper Blades. Flat Wiper: Flat Wiper is domestically produced and cost-effective. It belongs to the frameless wiper category. By using thicker, wider, and more elastic steel, this frameless wiper eliminates the need for the frame structure used in traditional wipers to distribute force. Instead, it directly applies force to the steel strip, effectively dispersing the concentrated force at a single point. This allows for the removal of the frame while maintaining even force distribution on the rubber blade. It features a side-lock interface. The wiper connector is directly inserted into the wiper arm and secured by a locking block.

[LaAlexander]

I recently changed my car and used to have Bosch Aerotwin wipers, which felt quiet and didn't shake when wiping, cleaning very well on rainy days at a reasonable price. The new AeroTwin is a later model, and I tried it for a month—the difference is quite noticeable. It has a more stylish design, reduced wind resistance, fewer raindrop jumps at high speeds, and smoother wiping without leaving streaks. The Aerotwin was already great, but the new AeroTwin adds aerodynamics, making it more stable in heavy wind and rain with lower noise. Installation is equally simple, but the new AeroTwin is a few dozen bucks more expensive—whether it's worth it depends on your budget. If you often drive on highways, I think the new AeroTwin is more worthwhile, with upgrades in the details, though the Aerotwin is basically sufficient. Both have similar lifespans, so it's up to you to choose.

[HavenRose]

I used Shenyi for two years without any damage, and the rubber has excellent weather resistance, keeping the windshield clean even in windy conditions. I heard that the new Fengyi has upgraded materials, offering better UV resistance to prevent aging. A friend of mine mentioned that it doesn’t deform easily after freezing in winter. The difference isn’t huge—Fengyi has slightly improved connection points for better durability and less looseness or noise, but Shenyi is already quite sturdy. For daily driving, Shenyi offers great value for money, while Fengyi costs a bit more for refined craftsmanship and faster response during rain sensing. If your budget allows, you might want to try Fengyi. Overall, the difference lies in minor durability optimizations, so either choice is fine.

[StRyan]

Compared the Shenyi and Xinfengyi when changing wipers. Shenyi is a well-established frameless wiper, known for being quiet and durable. Xinfengyi has a newer design, being lighter with less wind resistance, smoother at high-speed wiping, and better shock absorption. The differences mainly lie in these details. Shenyi is more affordable and practical, while Xinfengyi is a bit more high-end but slightly pricier. It depends on your car type; for regular cars, Shenyi is sufficient.