SiFly eFoils have been in our shop for a long time, yet there is still surprisingly little detailed information about the brand itself. In this article we go through the SiFly company properly, break down its line-up, compare the models against each other and help you work out which eFoil fits what you actually want to do.
About SiFly
SiFly is a Bulgarian brand from Sofia that works exclusively on electric hydrofoils (eFoils) and has managed, in the space of a few years, to take a visible place on the electric hydrofoil market. The company was built from the start as an engineering project with a focus on practical use: not simply to create a fast or technically impressive eFoil, but to make a board that is genuinely easier to start riding and comfortable to progress on.
Unlike a number of premium brands that aim first of all at experienced riders, SiFly puts the emphasis on a wider audience — from beginners to confident users, and also on schools, rental operations and yacht owners. That feeds directly into the construction of the boards, their volume, their stability and their general behaviour on the water.
The founder and the engineering approach
SiFly was founded by Alexander (Alex) Bachev, an athlete from the Formula Kite discipline. His experience fed straight into the philosophy of the product: the boards should not just be fast, they should be predictable, stable and easy to understand.
An important point is that this is not only a sporting but also an engineering approach. The SiFly team brings together specialists in electronics, software and hydrofoiling, which has let the brand develop the product as a complete system rather than as a set of separate components.
Positioning and philosophy
The key idea behind SiFly is to make the eFoil more accessible and easier to understand. That shows not only in the price but in the character of the boards themselves.
In practice it means:
- more stable hulls with more volume;
- softer behaviour when the board touches the water;
- a forgiving character, especially in the ranges aimed at beginners;
- an emphasis on the real user experience, not only on peak numbers.
This approach makes the brand particularly relevant for anyone just getting to know electric hydrofoils, and for commercial use in schools and rental fleets.
Manufacturing and materials
SiFly uses a combined approach to manufacturing. Some of the key components — the electronics, the batteries and individual structural elements — are developed in house. That lets the company control quality and roll out changes faster.
The carbon hulls (the Stellar series) are produced at the Cobra factory in Thailand, one of the largest composite manufacturers in the world. That matters, because the hull is what directly determines the stiffness, the weight and the behaviour of the board on the water.
The line-up uses three main types of construction:
- Carbon (Stellar): delivers maximum stiffness and response.
- EPP foam (Rider): stands out for higher safety and durability.
- Inflatable PVC (Lite): offers convenient storage and transport, extra buoyancy and durability.
Technology and construction details
With SiFly it is obvious that the product was designed not only from the point of view of specifications, but with real use in mind — from assembly through transport to servicing.
One of the key features is the modular construction with quick assembly. The eFoil consists of several main parts that connect without tools and without complicated adjustment. In practice that means the board can be assembled or taken apart in literally a few minutes, with no fiddling around with keys and fasteners. The approach is particularly convenient for anyone who regularly transports their equipment or uses it in different locations.
The same logic feeds directly into transport and storage. Taken apart, the kit takes up less space, it is easier to fit into a car or onto a yacht, and easier to store at home. On top of that the system is designed for modularity from the outset — individual components can be replaced or upgraded without changing the whole kit.
The hull geometry deserves separate attention. The anti-dive shape and the longitudinal rocker reduce the chance of the nose diving when the board touches the water. In real riding that means softer landings and makes the board's behaviour predictable, especially while you are still learning.
SiFly is also actively developing the digital side. The boards use the company's own electronic system with the option to connect to an app, update the firmware and monitor the state of the hardware. That lets you not only track your riding parameters but keep the system current without complicated servicing — and, in commercial use, manage several devices at once.
The result is that the whole SiFly construction is built around a simple idea: to make the eFoil not only technically capable but convenient in everyday use, from the first assembly to regular riding.
The SiFly line-up
The SiFly range is laid out to cover different use cases — from a first experience on an eFoil to more dynamic and technical riding. It rests on three families: Stellar, Rider and Lite. They differ in materials, in the character of the board and in how much they demand of the rider.
The Stellar series is aimed at stiffer, more precise riding, Rider at versatility and clear progression, and Lite at convenient storage, transport and the simplest possible way into eFoiling.
Stellar Series — the carbon line for dynamic riding
The Stellar series holds the most technically advanced and stiffest boards in the SiFly range. They are built for riders who already stand confidently on the foil and want more control, more speed and more precision in turns.
Stellar X
The most compact and most manoeuvrable model in the SiFly range. A volume of around 75 litres makes it demanding of the rider's level, but that is exactly what delivers maximum response and precision in handling.
The board reacts quickly to a shift in weight, allows sharp carving and holds a high pace. It is the choice for advanced riders who care about dynamics and control at speed, but it is not suited to learning or to relaxed cruising.
Full specification and price: SiFly Stellar X.
Stellar S
A more versatile carbon model that keeps the dynamic character of the series but gives more stability and control. A volume of around 98 litres makes it noticeably friendlier than the Stellar X, especially at the start and during your first attempts at carving.
It is a good option for intermediate riders who want to move to a carbon board and get a livelier feel from riding without a sharp jump in difficulty. For absolute beginners, though, the model will still be demanding.
Full specification and price: SiFly Stellar S.
Stellar R
The largest model in the Stellar series. A volume of around 120 litres gives a calmer start, higher stability and more control at low speed, while keeping the stiffness and precision of a carbon construction.
This model suits intermediate riders who want the advantages of a carbon board without excessive aggression in its behaviour. For learning from scratch it is still not the optimal choice.
Full specification and price: SiFly Stellar R.
Rider Series — versatile models for learning and progression
The Rider series is the backbone of the SiFly range in terms of real use. These models are aimed at a wide circle of users: from people who are only just starting out to intermediate riders, and also at schools, rentals and regular use.
The main idea behind the series is to make the eFoil as understandable, stable and safe as possible while keeping enough dynamics to progress. Thanks to the construction and the extra volume, these boards get onto the foil more easily, are simpler to control at low speed and forgive more mistakes.
Rider
The SiFly Rider is a versatile model with a volume of around 110 litres, designed for a broad range of riders. It combines enough stability for a confident start with livelier behaviour than the larger models.
In practice this is a board on which you can not only learn to ride but keep progressing: get onto the foil confidently, control your height and master turns. At the same time it stays predictable and does not demand perfect technique at every stage.
It is one of the most balanced options in the range: it suits personal use as well as teaching, as long as you do not need the maximum reserve of stability.
Full specification and price: SiFly Rider.
Rider +
The SiFly Rider + is a larger and more stable version of the Rider with a volume of around 130 litres. The extra volume gives a calmer start, higher stability on the water and lower demands on balance in the early stages.
This model is aimed first of all at people who are only just starting to ride, and at schools and rentals where predictability, safety and the simplest possible way into eFoiling matter. The Rider + lets you feel in control of the board sooner and cuts down the number of mistakes while learning.
The board remains perfectly usable for riding afterwards, but its main scenario is a comfortable, confident start.
Full specification and price: SiFly Rider +.
Lite Series — inflatable models for convenience and an easy start
The Lite series is the most practical and versatile format in the SiFly range when it comes to storage, transport and a first encounter with an electric hydrofoil. These models use an inflatable construction, so they take up less space and handle knocks and beginner mistakes better.
The main emphasis here is on convenience: the boards are easier to transport, easier to store and more comfortable to use in family scenarios or for occasional riding. On the water, though, they still feel like full eFoils rather than a "simplified" version.
Lite
The SiFly Lite is a versatile inflatable model with a volume of around 110 litres. It combines convenient storage with behaviour stable enough to start riding confidently and progress step by step.
Compared with the larger Lite + version, this model asks for slightly more control at the start, but it gives more compact dimensions and a livelier feel of the board in motion. It is a good option for anyone who wants a balance between convenience and handling.
Full specification and price: SiFly Lite.
Lite +
The SiFly Lite + is the largest and most stable model in the Lite range, with a volume of around 170 litres. The high volume gives the calmest possible start, high stability on the water and minimal demands on balance.
This model suits people who are only just starting to ride, family use, and situations where maximum simplicity and safety matter. The Lite + lets you get onto the board and feel in control sooner, taking the stress out of your first sessions.
At the same time its size and character make it less dynamic than the other models, so it fits relaxed riding better than active manoeuvring.
Full specification and price: SiFly Lite +.
The SiFly models compared
| Model | ||||||
|---|---|---|---|---|---|---|
| SiFly Stellar X | Carbon + EPS | 75L | 40km/h | up to 120 min | 40–100 kg | Advanced riders, dynamic and aggressive riding |
| SiFly Stellar S | Carbon + EPS | 98L | 38km/h | up to 120 min | 30–130 kg | Intermediate to advanced, a balance of dynamics and control |
| SiFly Stellar R | Carbon + EPS | 120L | 38km/h | up to 120 min | 40–140 kg | Intermediate, more stability inside the carbon series |
| SiFly Rider | EPP + aluminium | 110L | 38km/h | up to 120 min | 30–130 kg | Intermediate, all-round riding and progression |
| SiFly Rider+ | EPP + aluminium | 130L | 38km/h | up to 120 min | 40–140 kg | Beginners, teaching, rentals, the most stable start |
| SiFly Lite | — | 110L | 45km/h | up to 120 min | 40–110 kg | Intermediate, convenient storage and transport |
| SiFly Lite+ | High-strength PVC + rigid core | 170L | 40km/h | up to 120 min | 60–140 kg | Beginners, maximum stability and an easy start |
Please note: ride time and maximum rider weight are indicative and depend on the weather, the rider's level and the chosen configuration (battery, wings).
How to choose a SiFly eFoil
When choosing a SiFly eFoil it is important to consider not only the model but the configuration — the wings first of all. Different wings give different behaviour on the water: larger ones provide high stability, make control easier and help you get onto the foil sooner, but they limit speed and manoeuvrability. More compact wings give higher speed and sharper turns, but demand better control.
The second key parameter is the volume and the dimensions of the board. The smaller the volume, the more responsive the board and the more it asks of your skills. The larger the volume, the easier the start, the higher the stability and the more mistakes are forgiven. That matters especially for anyone who is only just starting to ride.
By level, the models can be arranged roughly like this:
- Lite + / Rider + — the simplest possible start and high stability
- Lite / Rider — a balance of stability and room to progress
- Stellar R — the more versatile way into the carbon line
- Stellar S — more dynamic and more demanding riding
- Stellar X — maximum manoeuvrability and the highest demands on skill
The use case is worth considering separately. The inflatable models in the Lite series are more convenient to store and transport: they can be deflated, they take up less space and fit more easily into a car or onto a yacht. Their construction also gives high buoyancy, which makes the start easier and the board more understandable in the early stages.
The rigid models (Stellar and Rider) take up more space in storage, but remain a versatile solution for regular riding, teaching and progression.
Where to buy SiFly eFoils in Europe
If you are planning to buy a SiFly eFoil, it is best to start with a consultation. We will help you pick a model for your level, your goals and your riding conditions, and explain the difference between configurations — including the wings and how the board behaves on the water.
You can find the whole SiFly range at WATERSURF Europe with current prices and every available configuration: browse the eFoils category or the SiFly brand page.
To place an order, open the page of the model you want, add it to the cart and fill in your contact details — after that we will get in touch to confirm the configuration and the details of the order. You can also write to [email protected] or use the contact page.
Every SiFly bought from WATERSURF Europe carries the manufacturer's two-year warranty. We deliver across Europe.
The verdict on SiFly
SiFly is a brand that makes electric hydrofoils more understandable and more accessible without losing anything in the quality of the ride. The company has a clear logic to its range: from the most stable models for learning to more compact and more demanding options for dynamic riding.
Because of that, everyone can pick a board for their level and their goals — whether that is a first experience, relaxed riding or further progression. The main thing is to define the use case correctly and pick the right configuration; then the eFoil really will be a pleasure rather than something that complicates the learning.
