Lelo – F1s Prototype (Black)


Black “Prototype” Edition App Enabled Stroker Masturbator which provides access to the developer SDK (Software Development Kit) to code changes to the app. Uses traditional vibrations and sonic emissions to stimulate the penis.

In stock

SKU: LELO-027765 Barcode: 7350075027765 Category: Tags: , , , , , , Brands: .


Through its unique dual-motor design, the F1s Prototype combines conventional vibrations with an entirely new sensation never before experienced in a male pleasure product: SenSonic™ technology.

It’s the same high-tech concept that made the LELO SONA™ the world’s bestselling sex toy of all time. Instead of standard vibrations, one of the motors emits powerful sonic waves that permeate deep into your penis, making it feel as though it’s resonating pleasurably from all directions all at once, instead of simply tickling the nerve endings on the surface of your skin. It will help you achieve the most overwhelming orgasms of your life.

Combined with the patented Cruise Control setting, which ensures F1s never experiences a frustrating power drop during vigorous use. Instead, it intelligently monitors and controls the intensity to ensure you get a completely seamless, uninterrupted experience.


  • Traditional Vibrations & Sonic Stimulation
  • Access to developer SDK to code app support
  • USB Rechargeable
    • Up to 2 Hours usage per charge
  • App Enabled for iOS & Android
  • Waterproof
  • Silicone Sleeve / Aluminium Case
  • Insertable Length: 4.5″ / 11.5cm

What’s in the Box:

  • F1s Prototype Black Trainer
  • LELO (Toy) Cleaning Spray
  • Don’t Disturb Sign
  • Gloves
  • Starter Guide
  • USB Charger
  • Satin Storage Pouch
  • Warranty Registration Card
  • Detailed Instruction Manual

What’s the difference between the Red F1s “Developer” version and the Black F1s “Prototype” version?

The Red Developer edition features a window in the side of the case which allows you to see the inner workings of the stimulator, allowing closer feedback while developing the software and tuning the app code user experience.

Additional information


Dildo / Usable Length

Girth / Diameter



Power Type



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