Design and materials
The F1S V3 measures 14 cm in overall length with an insertable length of 11 cm, making it reasonably compact and travel-friendly. The device features liquid silicone ribs inside, which serve a dual purpose: they allow for airflow during use and provide additional textured stimulation. The construction is finished in blue, giving it a sleek appearance. The exterior houses the control buttons and Bluetooth connectivity for app pairing.
Stimulation technology
Rather than attempting to replicate familiar sensations, the F1S V3 uses sonic waves to stimulate the penis from multiple directions simultaneously, meaning you don't need to perform thrusting motions yourself. The device is equipped with dual motors that target both the head and shaft, with the aim of engaging a broader range of nerve endings. A feature called Cruise Control technology maintains vibration intensity throughout use, preventing power drops during operation. The app connects via Bluetooth to unlock an AI interactive mode, which monitors your movements in real time and adjusts vibrations accordingly—all encrypted for privacy.
App and control options
The F1S V3 can be used standalone or paired with the LELO app (available on iOS and Android). Without the app, you can access 4 modes by pressing the power button, adjusting intensity with + and − buttons. Connected to the app, you gain access to 7 pleasure settings and the signature AI interactive mode, which offers three different control styles. The app also lets you save custom settings for offline use later and set an automatic power-off timer (configurable between 10 and 20 minutes). Battery level is visible in the app's top-left corner.
Power and charging
The F1S V3 is USB rechargeable. Before first use, you'll need to charge it for 2 hours. The device supports Bluetooth pairing by holding the power button for 3 seconds, which triggers LED lights to blink during the pairing process.
What it's like to use
Setup is straightforward: charge, then either press the power button to use it standalone or hold it for 3 seconds to activate Bluetooth pairing with the app. Without the app, mode switching and intensity adjustment are handled by the control buttons. If using the app, pairing involves opening the LELO app, locating your device, and confirming the connection via button press. The sonic-wave approach means the device works without requiring active thrusting, which some users find more intuitive or less physically demanding than traditional devices. The liquid silicone ribs provide texture whilst allowing airflow, which can affect comfort and sensation during extended sessions.
Cleaning and care
The supplier information provided does not include specific cleaning instructions or material care guidance. For hygiene purposes, you should consult the full user manual or LELO's official care recommendations before use.
Buy it if
You're interested in sonic-wave stimulation rather than traditional vibration patterns, want a compact, travel-friendly device, value app-based customisation and AI-responsive features, or are curious about real-time movement feedback technology. It's also worth considering if you prefer hands-free or lower-effort stimulation.
Skip it if
You prefer traditional vibration-only devices without app connectivity, don't want Bluetooth functionality, or prefer straightforward button-only controls. If you're looking for something that mimics familiar sensations closely, this device's focus on sonic waves rather than imitation may not align with your preferences.
The bottom line
The F1S V3 is a well-engineered device that prioritises innovation over imitation. The combination of sonic-wave stimulation, dual motors, and AI-responsive feedback offers a genuinely different experience compared to standard devices. Its compact size, app integration, and multiple control modes make it flexible for different needs and situations. If you're willing to explore a less conventional approach to male pleasure products and value technological features, it's worth comparing prices and reading user reviews to see if it matches your expectations.
Frequently asked questions
Can I use the F1S V3 without downloading the app?
Yes. Without the app, you can use 4 built-in modes accessible via the power button, with intensity controlled by + and − buttons. The app unlocks additional features like 7 total settings, AI interactive mode, and custom saving.
How long does the battery take to charge?
The device requires 2 hours of charging before first use. You can check battery level in the app's top-left corner if using Bluetooth connectivity.
Is the device private if I use the app?
The supplier states that movement data in AI interactive mode is encrypted, though you should review LELO's full privacy policy for complete details on data handling.
What makes the sonic-wave stimulation different from standard vibration?
Rather than mimicking familiar sensations, sonic waves stimulate the penis from multiple directions without requiring thrusting. Combined with dual motors, this targets a broader range of nerve endings.
How portable is it?
At 14 cm overall length with an insertable length of 11 cm, it's reasonably compact and travel-friendly, especially for a device with dual motors and app connectivity.