Lelo F1s Prototype Black (

How It Feels

The Lelo F1s Prototype offers a luxurious and ergonomic design crafted from textured aluminum and high-quality silicone. Its internal grooves heighten sensations, providing a stimulating texture that enhances pleasure. The internal silicone channel is ergonomically shaped for a comfortable fit, allowing easy handling and precise control during use. The textured aluminum exterior adds a sleek, sophisticated feel, combining durability with a premium tactile experience.

The internal silicone is soft yet firm, delivering a snug, realistic sensation that adapts to your movements. The textured body and internal grooves work together to intensify stimulation, making each session deeply satisfying. With its thoughtfully designed shape, the F1s comfortably conforms to the body, targeting sensitive areas with precision.

Vibration Modes and Sensory Features

The F1s Prototype harnesses revolutionary SenSonic technology, which uses sonic waves to create deeply satisfying vibrations. Equipped with powerful Cruise Control dual motors, it delivers intense, consistent stimulation across multiple vibration patterns. The device includes 10 state-of-the-art performance sensors that monitor and adapt to your preferences, ensuring a personalized experience.

Users can customize sensations through a dedicated SDK app compatible with iOS and Android devices. The app allows for detailed control over vibration intensity, patterns, and internal sensor feedback, enabling users to create and track their own sensations and progress. The simple, one-handed controls make adjusting settings intuitive and seamless during use.

Power, Performance & Design

The F1s Prototype is fully rechargeable via a convenient USB connection, providing up to 2 hours of use on a single charge. Its waterproof construction ensures safe use in wet environments and easy cleaning. The device features a transparent window panel that offers a captivating visual element, allowing you to see your pleasure in action—adding a unique visual dimension to your experience.

Connected via Bluetooth, the F1s communicates with the SDK app for enhanced customization and control. Its internal sensors provide real-time feedback, which can be visualized through the app, giving you a more immersive and interactive experience.

Designed for targeted stimulation, the F1s is ideal for internal use, providing a deep, resonant experience that combines sonic waves with powerful motor vibrations. Its sleek, textured exterior and internal grooves are engineered to heighten pleasure while ensuring safety and comfort during extended sessions.