If you’ve ever tried to connect your GoPro or DJI action camera to your phone or tablet while it’s underwater, you’ve probably noticed something frustrating — the connection drops the moment the camera is submerged. Despite having built-in Wi-Fi and Bluetooth, most action cameras become unreachable as soon as they go below the surface.
Wi-Fi and Bluetooth rely on high-frequency radio waves, which are quickly absorbed by water. Even just a few centimetres beneath the surface, the signal can no longer travel — especially in saltwater.
This means that your mobile device can no longer:
Connect to your action camera’s app
Control recording or settings
View live footage in real time
Learn why wireless signals don’t travel through water — it all comes down to physics.
Both GoPro and DJI action cameras use Wi-Fi to connect to their companion apps — GoPro Quik and DJI Mimo — via 2.4GHz or 5GHz bands. These connections work well above water but fail once submerged.
Seavu solves the problem of underwater connectivity by physically relaying your action camera’s Wi-Fi and Bluetooth signal to the surface — where your phone or tablet can receive it just like normal.
The Seavu Seeker and Seavu Explorer kits use a three-part system:
Receiver (built into the Seeker Mount or Explorer Housing):
Captures your camera’s Wi-Fi and Bluetooth signal even when fully submerged.
Tether Cable:
A rugged, marine-grade cable transmits that signal from the receiver to the surface.
Transmitter (at the surface):
Rebroadcasts the signal wirelessly to your phone or tablet, allowing you to connect in real time via your camera’s app.
This allows for full remote control and live viewing — even while your camera is 7, 17, or 27 metres underwater.
Compact, lightweight, and designed for hands-on use, the Seeker can be attached to extension poles, burley pots, or boat rails. It’s the ultimate setup for recreational fishing, boat hull inspections, and training sessions at the pool.
Featuring a stabilised fin and modular design, the Explorer Kit is ideal for trolling, drifting, or anchoring. It’s perfect for those wanting steady, high-quality footage in moving water or from the seafloor.
Relays 2.4GHz Wi-Fi and Bluetooth from your camera
Compatible with GoPro Quik and DJI Mimo apps
No plugs or ports connected to your phone — fully marine-proof
Compatible with newer cameras using Bluetooth 5.0+
Future-proof design supports camera upgrades
For professional use cases like film production, inspections, or long recording sessions, the Explorer+ Pro Kit – Hard-wired video and power for professional applications provides a direct USB-C feed to a monitor, computer or capture card — powered by fibre-reinforced cable.
Learn how DisplayLink video output works if you’re interested in connecting phones or tablets to larger displays.
Seavu’s systems are built for anyone who needs live underwater visibility — whether you’re fishing, inspecting marine assets, researching ecosystems, or creating underwater content. With reliable signal transmission and app-based control, your GoPro or DJI camera finally works where it matters most — beneath the surface.
Explore the full Seavu range:
Seeker Starter Kit – Live view from camera mounted to just about anything
Explorer Adventure Kit – Live underwater footage with various fishing applications
Explorer+ Pro Kit – Hard-wired video and power for professional applications
Capturing stunning underwater footage has never been easier, but streaming live underwater footage with your action camera while submerged? That’s a whole different challenge. Action cameras like GoPro and DJI are designed to capture breathtaking moments on land, but what about when you’re exploring beneath the waves? Whether you’re fishing, researching marine life, or filming a documentary, the ability to live stream underwater footage can transform your experience.
In this guide, we’ll walk you through how to stream live underwater footage from your action camera to your phone or tablet, and introduce you to the technology that makes it possible.
Before we dive into the solution, it’s important to understand why live stream underwater footage is so difficult. Traditional Wi-Fi and Bluetooth signals from action cameras are great on land, but when submerged, these signals lose strength and fail to connect properly. The water creates interference, especially saltwater, which can block the signal entirely. This makes it nearly impossible to stream live underwater footage directly from your camera to your mobile device.
Enter Seavu – a system that revolutionises underwater live streaming. With Seavu, you can now get a live, uninterrupted feed from your GoPro or DJI action camera while it’s underwater, transmitting directly to your mobile phone or tablet. The Seavu system works by utilising a receiver that picks up the camera’s Wi-Fi and Bluetooth signals. This data is then transmitted via a cable to a transmitter, which sends the footage to your mobile device without the need for any physical connections to the camera or phone.
Set up your Seavu kit: Seavu’s versatile setup includes a camera mount with a built-in receiver that can attach to almost anything, such as a pole, burley pot, or extension arm. This ensures that your action camera stays securely positioned as you explore underwater.
Connect your action camera: Most GoPro and DJI cameras work seamlessly with Seavu, allowing you to set up the camera for optimal underwater filming. Be sure to set your camera’s Wi-Fi to the 2.4GHz band, which is best for long-range transmissions.
Start streaming: With your Seavu system in place, the camera’s footage will be transmitted in real time via the Seavu transmitter, sending the feed to your phone or tablet. Whether you’re filming fish in their natural habitat, capturing a scenic underwater dive, or live-streaming a fishing trip, you’ll be able to view everything as it happens.
Real-Time Feedback: Being able to see what’s happening underwater in real time lets you adjust your equipment and camera angles instantly. It’s a game-changer for those looking to optimise their fishing, diving, or research setups.
Enhanced Safety: For professionals working underwater, such as marine researchers or inspection teams, having a live feed to a mobile device helps monitor activities, ensuring both safety and productivity.
Better Filmmaking: Filmmakers can now get instant, clear feedback on the footage being captured, allowing for adjustments to shots or framing while filming, even in challenging underwater environments.
No More Signal Dropouts: Seavu’s wireless transmission avoids the issues of signal loss that often occur with traditional methods, ensuring a stable connection no matter how deep the camera goes.
If you’re ready to take your underwater footage streaming to the next level, here are some key features to look for in your Seavu kit:
Real-Time Streaming: Stream live footage to your mobile device, whether it’s a phone, tablet, or computer.
Compatible with GoPro and DJI: Most action cameras, including GoPro Hero and DJI Action cameras, are compatible with Seavu’s systems.
Marine-Proof Design: Seavu’s system is built to withstand the marine environment, ensuring durability and longevity, even in harsh conditions.
Extended Cable Options: With Seavu’s extended cable lengths (up to 52 metres), you can explore deeper and still maintain a strong connection to the surface.
Fishing: Whether you’re scouting the perfect fishing grounds or filming your catch, live underwater footage gives you a competitive edge. The Seavu system allows you to stream directly from your camera to your mobile device, providing a bird’s-eye view of the action.
Research: Marine researchers can now study underwater environments in real time. Seavu’s clear, reliable footage is perfect for documenting marine life, monitoring ecosystems, and more.
Filmmaking: Capture high-quality underwater footage with a professional-level setup that delivers continuous live streaming, all while maintaining full control over your camera angles and framing.
Exploring: For adventurers and explorers, streaming your underwater explorations in real time adds a whole new layer to the experience. Share your discoveries instantly with others or just document them for later.
Livestreaming underwater footage from your action camera has never been easier. With Seavu, you can break free from the limitations of traditional camera setups and get live, uninterrupted feeds straight to your mobile device. Whether you’re a hobbyist, a marine researcher, or a filmmaker, Seavu’s seamless integration with GoPro and DJI action cameras makes underwater livestreaming accessible and reliable for everyone.
Ready to capture and share your underwater world? Start livestreaming with Seavu today.
In 2017, Charlo, the founder of Seavu, decided to leave his successful communications career in London and return to his homeland, Australia. Charlo carried with him a lifelong love for fishing, a passion that became his sanctuary from the gruelling 60-hour work weeks he’d left behind. After purchasing a boat to enjoy his fishing escapades, he quickly realised the complexities that beginner fishermen face, particularly the mystery of the underwater world.
Hungry for knowledge, Charlo absorbed every bit of fishing wisdom he could find, driven by his resolution to become an adept angler. However, the onset of the pandemic meant limited opportunities for fishing, making each trip even more precious. But even with the best equipment and a growing wealth of knowledge, Charlo found himself in a sea of overwhelming information, still feeling like he had “all the gear and no idea”.
This persistent conundrum sparked an idea in Charlo’s mind. What if he could see what was happening beneath the surface of the water? Would he be able to tell if his fish finder was displaying a school of snapper or just a discarded shopping trolley? It was this curiosity that laid the foundation for what would eventually become Seavu.
Charlo’s concept of viewing real-time underwater footage was ambitious but faced one significant problem. There were no accessible products on the market that fulfilled his requirements. Available options were either exorbitantly priced, complicated to use, or inadequate for adapting to varying conditions. Not deterred by this, Charlo decided to create the solution he needed – his own live-streaming underwater camera.
After years of perseverance, multiple prototypes, and the dedication of a skilled team, Seavu finally came to life. Today, it stands as a testament to Charlo’s vision and determination, providing a high-quality solution for live-streaming the underwater world.
Seavu’s journey is more than just the story of a product’s development; it’s the realisation of a dream, the fruit of dedication, and the embodiment of a love for fishing. Its creation has provided a unique tool that not only enriches the fishing experience but also demystifies the aquatic world for anglers worldwide. And in doing so, it honours the dream of a boy who simply wanted more time to go fishing.