Buddy-Watcher Pitch Deck: 20-Slide Seed Deck

Buddy-Watcher is a hardware startup targeting the scuba diving, snorkeling, and freediving markets with a wearable device designed to prevent buddy separation. The deck identifies a critical safety gap: divers often drift apart due to underwater distractions, which becomes dangerous in emergencies. Their solution uses ultrasonic technology to trigger vibration alarms when a predefined distance is exceeded. The deck is notable for its transparency regarding unit economics, citing a production cost of €64.00 per set and a target retail price of €199.98. While the primary focus is recreational d…

Key takeaways

• The product addresses the safety risk of divers drifting apart due to underwater distractions (Slide 3).
• The device uses a vibration alarm to alert divers when they exceed a predefined safety distance (Slide 5).
• Functionality includes a boat-to-diver recall feature and the ability to call safety divers from depths of up to 80 meters (Slide 7).
• Target customers include individual active divers and B2B partners like Robinson tour operators and AIDA cruise lines (Slide 9).
• Competitive analysis positions the product between low-cost tank bangers (€7) and high-end communication systems like Casio Logosease (€1,400) (Slide 11).
• Unit economics show a margin ratio of €71.00 based on an average sale price of €135.00 (Slide 13).
• The company aims to reduce production costs from €64.00 to €45.00 per set of two devices (Slide 13).
• The technology is pitched as scalable to industrial pipeline supervision and automotive driving assistance markets (Slide 15).

Frequently asked questions

What is the primary problem Buddy-Watcher solves?

According to Slide 3, the primary problem is that divers become distracted by underwater impressions and drift away from their partners. In dangerous situations, the distance between buddies is crucial for safety. The device acts as an automated monitor to ensure divers remain within a safe proximity, using ultrasonic sensors to measure distance constantly.

How does the device communicate with the diver?

The device uses vibration alarms rather than audio or visual cues, which can be missed underwater. Slide 5 and Slide 7 specify that the alarm triggers immediately if the safety distance is exceeded. It also allows for intentional communication, such as calling a 'safety-diver' during an ascent from depths up to 80 meters.

What are the specific unit economics for the hardware?

Slide 13 provides a detailed breakdown: the end-customer price is €199.98, while the wholesale price is €108.00. With an average sale price of €135.00 and production costs of €64.00 per set of two, the current margin is €71.00. The company also notes a Customer Acquisition Cost (CAC) of €39.00.

What is the long-term vision for the technology beyond diving?

Slide 15 outlines 'Scalability of technology,' suggesting the ultrasonic sensors can be used for pipeline supervision (referencing the $62 billion Deepwater Horizon catastrophe), automotive driving safety (€17 billion market), and child supervision wearables ($700 million market). This indicates the founders view diving as an entry market for a broader sensor platform.

What are the terms of the investment sought in this deck?

Slide 17 states the company is seeking €300,000 in exchange for an 8.45% equity stake. This implies a post-money valuation of approximately €3.55 million. The funds are split: 40% for marketing and sales, 40% for production (manufacturing and assembly), and 20% for product re-design for mass production.

Buddy-Watcher pitch deck: the facts

Company

Buddy-Watcher

Year

Not stated

Stage

Seed

Slides

20

Sector

Sports Technology / Safety Hardware

Deck type

Investment Pitch

Outcome

Not stated

Headquarters

Not stated

Buddy-Watcher pitch deck PDF

The full Buddy-Watcher deck is embedded on this page and can be read slide by slide in the browser — no download or account required. Each slide is covered in the breakdown above.

What the Buddy-Watcher (Free-Linked GmbH) pitch deck was used for

Buddy-Watcher is a German diving safety hardware startup that developed an ultrasonic wrist-worn device to maintain contact between scuba buddies and prevent dangerous separation. The Slideshare deck titled “Buddy-Watcher – Communication in Scuba Diving 4.0” appears around late 2016–early 2017, aligned with a seed-stage equity crowdfunding campaign on Companisto launched in December 2016 by Free-Linked GmbH. In this deck, the team pitches both the Buddy-Watcher call function and a distance-alarm Pro version to raise capital for product optimization, manufacturing cost improvements, and international expansion (U.S. and Asia) via the Companisto crowdinvesting round. It is a ~20-slide seed-stage fundraising deck focused on hardware product, problem-solution fit and planned scaling of ultrasonic sensor technology, rather than traction or financial metrics.

Business model: Hardware sales of ultrasonic underwater communication wearables (Buddy-Watcher basic and Pro sets) via online store and global dive-shop/distributor network.

Founders

Eduard Sabelfeld

Headquarters

Pforzheim, Germany (Free-Linked GmbH, Blücherstraße 32, 75177 Pforzheim).

Round: Seed stage at the time of the Companisto equity crowdfunding, with Buddy-Watcher already generating revenue from product sales but still focused on hardware optimization and scaling.

Year: 2016–2017 (the Companisto equity crowdfunding campaign started in early December 2016 and was ongoing into 2017; PitchBook lists an equity crowdfunding round in 2017).

Raising: Free-Linked GmbH used the Buddy-Watcher deck in the context of its Companisto equity crowdfunding round launched in December 2016, seeking capital to optimize device size and ergonomics, reduce manufacturing costs for chargers, and internationalize its core markets in the U.S. and Asia.

Raised: The Companisto equity crowdfunding campaign that began in December 2016 had attracted over €115,000 from more than 300 crowd investors according to a Tauchen.de article, while PitchBook reports that Buddy-Watcher raised a cumulative total of approximately $812K across multiple rounds including a 2017 equity crowdfunding round.

Industry: Sports technology / diving safety hardware (underwater communication wearables based on ultrasound).

Total funding: Approximately $812K raised over time across grant, accelerator/incubator, equity crowdfunding and other rounds.

Use of funds as presented: Optimization of the Buddy-Watcher device’s size and ergonomic profile, reduction of manufacturing costs for the first chargers, and internationalization of core markets with a focus on the United States and Asia, as described in the Companisto crowdfunding video and campaign materials.

What happened after the Buddy-Watcher (Free-Linked GmbH) deck

Buddy-Watcher progressed from early development of an ultrasound-based underwater communication system to commercial sales through a global dealer network and online channels, supported by a mix of grant, accelerator/incubator and equity crowdfunding funding totaling about $812K, including a Companisto campaign in 2016–2017. Despite this traction and recognition, the operating company Free-Linked

• Development of an ultrasound-based buddy communication and distance-monitoring system for divers over several years, cul
• Retail launch and distribution via over 170 specialist dealers worldwide, plus online sales and availability in markets
• Participation in accelerator/incubator programs and receipt of a grant, leading to a total of approximately $812K raised
• Execution of an equity crowdfunding campaign on Companisto beginning in December 2016, achieving more than €115,000 from
• Selection among the final-round participants of the Cyber-One Hightech Award competition, indicating some recognition in
• Insolvency of Free-Linked GmbH on 12 June 2018 and Buddy-Watcher’s out-of-business status recorded around July 2018, end

What the Buddy-Watcher (Free-Linked GmbH) deck got right

• Compelling, intuitive safety problem framing. The deck’s early slides clearly articulate a concrete safety problem—divers being distracted by underwater impressions and drifting apart, with distance between buddies being crucial in dangerous situations—providing a strong narrative hook rooted in a well-understood diving practice (the buddy system).
• Clear, easy-to-understand product functionality. Buddy-Watcher’s solution slides explain a simple user interaction (press button, send ultrasound signal, receive vibration alarm) and extend this to distance monitoring, which makes the hardware’s functionality easy to grasp for non-technical investors and aligns directly with the stated problem of diver separation.
• Demonstrated market presence and distribution. External coverage confirms that the product was already commercialized at the time of the deck, with over 170 specialist dealers worldwide, online availability, and presence in markets like Europe and the U.S., which backs up any traction claims the deck may include and reduces perceived product risk.
• Product-line differentiation with basic and Pro versions. The existence of both a basic Buddy-Watcher set (call function) and a Pro set (distance alarm with configurable thresholds) allows the deck to showcase a roadmap for product differentiation and upselling within the same technological platform, which can be attractive to investors looking for scalable hardware product lines.
• Existing investor validation through equity crowdfunding. The deck was part of a broader equity crowdfunding effort on Companisto that had already attracted over €115,000 from more than 300 investors, providing social proof and investor validation that the team could leverage directly in conversations with additional backers.
• Distinctive silent ultrasound communication value proposition. Buddy-Watcher’s focus on silent, ultrasound-based communication that avoids startling marine life differentiates it from audible signaling tools, and the deck’s emphasis on soundless, personalized, comfortable alerts highlights this unique value proposition that resonates with both safety and environmental sensitivity.

What could have been stronger

• Limited quantitative problem sizing and safety impact data. The deck, based on the OCR text and Slideshare description, focuses heavily on the qualitative problem of diver distraction and separation but does not present quantified incident data, market size, or statistics on accidents that Buddy-Watcher could reduce, which weakens the economic and risk-reduction case for investors beyond intuitive safety appeal.
• Sparse treatment of technical, regulatory and reliability risks. The slides excerpted emphasize the core product behavior (button press sends ultrasound, vibration alarm, distance monitoring), but there is no visible detail in the deck around IP status, regulatory approvals, reliability metrics, battery life, or failure modes, leaving technical and regulatory risk under-addressed for hardware investors.
• Traction and revenue not clearly articulated in the deck. While external sources show the company was already selling via 170 dealers worldwide and had retail pricing and distribution established, the deck text as captured does not highlight concrete traction metrics such as units sold, revenue, customer segments, or repeat usage, which likely reduces perceived momentum and market validation for the seed round.
• Limited articulation of broader operational use cases and competitive landscape. The pitch focuses on the use case of two dive partners but does not clearly address integration into broader dive operations (e.g., group dives, instructor-student scenarios, or compatibility with existing dive computers), nor does it compare Buddy-Watcher to alternative communication and signaling methods, leaving competitive positioning underdeveloped in the deck itself.

How an investor would read this deck

What draws attention

• Clear, simple hardware product solving a specific safety and communication problem for scuba buddies using ultrasound and vibration, easily understood from the first slides of the deck.
• Existing commercialization at the time of the deck, including retail availability, global distribution through more than 170 dealers, and pricing in multiple markets, which indicates the product was beyond prototype and already generating revenue.
• Equity crowdfunding via Companisto with over €115,000 raised from more than 300 investors, showing some degree of market and investor validation for the concept and team.
• Portfolio of prior funding events (grant, accelerator/incubator, equity crowdfunding) totaling roughly $812K, suggesting ability to attract support and progress through multiple stages of development.
• Distinct Pro version with distance alarm and basic version with call function, enabling upsell and product-line differentiation within the same core technology platform.

Risks that stand out

• Hardware manufacturing and cost-optimization risk: the equity crowdfunding campaign explicitly aimed to optimize manufacturing costs of chargers and devices, indicating that achieving sustainable margins at scale was a material challenge for the business.
• Market size and adoption risk: while divers and dive operators value safety, the relatively high price per set (around $230–$300) vs. cheaper mechanical signaling tools suggests potential resistance to adoption beyond more affluent or safety-focused segments.
• Technical and environmental risk: ultrasound communication underwater can be affected by distance, orientation, obstacles and conditions; any reliability issues could directly undermine the product’s core safety value proposition.
• Financing and continuity risk: Free-Linked GmbH’s insolvency in 2018 and Buddy-Watcher’s out-of-business status indicate challenges in achieving sustainable growth and profitability despite prior funding, which would concern investors evaluating long-term viability.
• Regulatory and liability risk: as a safety-related diving device, Buddy-Watcher may engage with dive training agencies and risk-management standards, and any incidents where the device fails in critical moments could pose reputational and legal exposure.

Questions this deck invites

• What were the actual historical sales metrics at the time of the deck (units sold, revenue, margins, geographic breakdown) and how did these compare to projections presented to Companisto investors?
• What are the detailed failure rates, battery performance, and reliability statistics for Buddy-Watcher devices across different water conditions (visibility, temperature, salinity), and how were these validated or certified?
• How strong and enforceable are the patents or IP protections around the ultrasound communication and distance-measurement technology, and were there competing products with similar functionality at the time?
• What are the unit economics, including manufacturing cost per device, gross margin, and required pricing to support sustainable distribution through more than 170 dealers and online channels?
• What led to Free-Linked GmbH’s insolvency in June 2018 and Buddy-Watcher’s out-of-business status by July 2018, and how did that outcome compare with the risk disclosures and plans presented in the seed pitch deck and Companisto campaign?

What founders can take from the Buddy-Watcher (Free-Linked GmbH) deck

• Anchoring a hardware pitch deck in a vivid safety problem (diver distraction and separation, and the crucial importance of buddy distance in dangerous situations) creates an intuitive narrative that non-diver investors can still understand quickly.
• Demonstrating a simple, tangible interaction model (press button, ultrasound signal, vibration alarm) supported by clear visuals and step-by-step slides helps make underwater communication technology accessible and reduces perceived complexity for investors and customers.
• Offering both a basic product (call function) and a Pro version (distance alarm) in the deck signals future upsell opportunities and product-line evolution without overcomplicating the core story, which can be effective for seed-stage hardware pitches.
• Pairing the deck with a public equity crowdfunding campaign on a recognized platform (Companisto) and referencing the crowdinvesting goals in campaign materials shows how a deck can be tailored to retail investors who may value clear use cases and emotional safety benefits over technical details.
• The Buddy-Watcher case illustrates that early commercial traction (international distribution, retail sales and multiple funding sources) does not guarantee long-term viability; decks should therefore address cost structure, scaling challenges and downside scenarios explicitly to better align invest
• A hardware safety device pitch benefits from including quantitative evidence (accident statistics, measurable risk reduction, reliability metrics), and the relative absence of such data in Buddy-Watcher’s deck points to how future founders can strengthen credibility by tying qualitative stories to h

Buddy-Watcher (Free-Linked GmbH) pitch deck: common questions

What is Buddy-Watcher and how does it work underwater?

Buddy-Watcher is a wrist-worn underwater communication device for scuba divers that uses ultrasound to send signals between paired units; when one diver presses the button, the buddy’s device vibrates silently to attract attention without sound or bubbles. Some models (Buddy-Watcher Pro) also measure the distance between two devices and trigger a vibration alarm when a preset separation (e.g., 5 or 10 meters) is exceeded.

Who is behind Buddy-Watcher and what is the company’s status now?

Buddy-Watcher was developed and commercialized by Free-Linked GmbH, a startup based in Pforzheim, Germany, which built an ultrasound-based communication system for divers and sold it through an online shop and a network of over 170 specialist dealers worldwide. The company operated Buddy-Watcher as a patented product, but Free-Linked went into insolvency in June 2018 and the PitchBook profile lists Buddy-Watcher’s latest deal status as out of business as of July 2018.

What fundraise was the Buddy-Watcher pitch deck used for?

The Slideshare pitch deck “Buddy-Watcher – Communication in Scuba Diving 4.0” is associated with the equity crowdfunding campaign Free-Linked GmbH ran on Companisto starting in early December 2016, where they invited small investors (“Companists”) to fund optimization of the Buddy-Watcher device and international expansion. The deck and related campaign materials emphasize improving size and ergonomics, reducing manufacturing costs for chargers, and targeting growth in the U.S. and Asian markets using the capital raised from the crowdinvesting round.

How much funding did Buddy-Watcher raise and from whom?

Buddy-Watcher raised funding from several sources: a grant in 2011, an accelerator/incubator round in 2014, and an equity crowdfunding (crowdinvesting) round in 2017, for a cumulative total of about $812K over time according to PitchBook. During the Companisto equity crowdfunding campaign that began in December 2016, press coverage reported that over 300 investors had provided more than €115,000 to Free-Linked GmbH to optimize and expand the Buddy-Watcher product.

How was Buddy-Watcher sold and what did it cost?

Buddy-Watcher devices were sold online at buddy-watcher.de and via dive equipment dealers; they typically came in sets of two paired units and were priced around €100 per device or roughly $230–$300 per two-unit set, depending on the market and model. The product was distributed through more than 170 specialist dealers worldwide and was available in Europe and the U.S., including via Amazon and regional distributors like Sealife Benelux.

Sources

Funding and outcome facts on this page were researched on 2026-08-22 from the pages below.

• Buddy-Watcher - Communication in Scuba Diving 4.0
• Buddy-Watcher - Kommunikation unter Wasser
• Start-up Buddy-Watcher entwickelt Wearable für Taucher - IT-ZOOM
• Buddy-Watcher 2025 Company Profile: Valuation, Funding & Investors | PitchBook
• Buddy Watcher - ScubaGirl
• Verbesserte Kommunikation unter Wasser
• Buddywatcher: The tap on your shoulder
• Anzeige: Buddy Watcher – Das Tauchen neu genießen!

Buddy-Watcher pitch deck slides

What each slide of the Buddy-Watcher pitch deck says

Slide 2

’ = ~ BUDDY Problem I 5 it = Difficulties communicating underwater z = Divers are distracted by underwater = impressions rg = Visual and verbal communications hardly work Reachability of a dive partner is not guaranteed, yet it is a crucial factor during one's dive! “A

Slide 3

Problem I1 Divers are distracted by underwater impressions Divers start to dive away from each other Leads to a great distance between the dive partners In dangerous situations, the distance between the dive partners is crucial!

Slide 4

Solution I: T The Buddy-Vficher < Vi By pressing a button, an ultrasound signal will be sent to the dive partner Vibration alarm will inform the dive partner Immediate attention of the dive partner is attracted Soundless, personalized and comfortable

Slide 5

The Buddy-Watcher measures the predefined distance The alarm will immediately start if the distance is exceeded Instant attention of the distant team The loss of the dive buddy will be prevented

Slide text above is read directly from the Buddy-Watcher deck PDF embedded on this page.

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