6 Best Waterproof Tracking Device Holders For Open Water

Open water swimming offers a unique sense of freedom, yet navigating vast, featureless stretches of water often leaves athletes feeling disconnected from their support systems. Integrating tracking technology provides a crucial layer of security, transforming a solo session into a monitored, safer endeavor. Selecting the right hardware ensures that vital tracking devices remain bone-dry and functional through hours of rhythmic strokes and tidal shifts.

Disclosure: As an Amazon Associate, this site earns from qualifying purchases. Thank you!

Swim Secure Tow Donut: Best for Visibility

The Swim Secure Tow Donut excels because it addresses the two greatest challenges of open water swimming: being seen by boaters and keeping gear dry. This dual-chamber buoy attaches via a waist strap, floating unobtrusively behind the legs while providing a high-visibility silhouette that cuts through glare and choppy surf. Its internal dry compartment provides ample space for a smartphone or GPS tracker, sealed by a reliable roll-top closure.

Choose this model if safety from watercraft is the primary concern. Its buoyant, donut-shaped design allows the device to stay balanced on the surface, preventing the “tumble” often experienced with flatter dry bags. It is the gold standard for swimmers who frequent busy lake lanes or coastal areas where motorized traffic poses a legitimate risk.

Zone3 Swim Buoy Dry Bag: Best Overall Value

For those seeking a balance between utility and cost, the Zone3 Swim Buoy is an industry favorite for good reason. It features an integrated dry bag chamber that protects tracking devices from moisture while allowing the swimmer to stash keys or nutrition alongside the tech. The adjustable belt ensures a snug fit, while the vibrant color palette ensures the swimmer remains visible in varying light conditions.

This buoy is ideal for the mid-distance swimmer who needs a reliable, no-nonsense solution without the bulk of specialized rescue equipment. It holds its shape well under pressure, ensuring that the tracking device stays securely stowed away from the water line. If the goal is a dependable, all-purpose solution for training, this is the most balanced choice available.

AquaVault Floating Pouch: Best for Versatility

The AquaVault Floating Pouch utilizes a heavy-duty, air-tight seal that is specifically engineered for submersion, making it a stellar option for those who want their tracker closer at hand. Unlike tow buoys, this pouch can be clipped directly to a wetsuit zipper, a swimsuit strap, or a carabiner on a separate float. It is completely transparent, allowing for quick checks of the tracker’s status without breaking the seal.

This pouch is perfect for swimmers who prefer minimalism over the drag of a tow buoy. It is also an excellent secondary safety device for those who carry multiple trackers or need a small, watertight space for emergency signaling items. If the preference is for gear that stays physically attached to the body rather than trailing behind, this is the superior option.

FINIS Hydro Tracker: Best for Goggle Mounting

Designed with the technical swimmer in mind, the FINIS Hydro Tracker takes a different approach by focusing on streamlined performance. By mounting the device directly to the back of the goggles, it minimizes drag and keeps the tracking hardware centered in the wake of the head. This placement is particularly effective for GPS accuracy, as it keeps the antenna positioned above the water line more consistently during the breathing stroke.

Opt for this device if the priority is data precision and speed. While it doesn’t offer the extra storage space of a dry bag, its hydrodynamic design is unrivaled for competitive training. It is specifically built for athletes who want to log every turn and stroke without sacrificing their fluid technique.

H2O Audio AirTag Case: Best for Apple Users

The H2O Audio AirTag case leverages the expansive Apple “Find My” network, making it a cost-effective and highly reliable solution for proximity tracking. The case is built with a rugged, depth-rated construction that secures an AirTag tightly, preventing internal shifting or water ingress. It is slim and low-profile, designed specifically to fit comfortably under a silicone swim cap or on a secure wrist strap.

This case is the clear winner for the Apple ecosystem user who wants a “set it and forget it” tracking solution. Because AirTags are compact and battery-efficient, this setup is perfect for long-duration swims where heavy, bulky trackers would become a nuisance. It provides enough security to feel confident in the tracker’s longevity, even if it is not designed for deep-water diving.

Amphipod Go-Pod: Best Minimalist Waist Pack

The Amphipod Go-Pod is for the swimmer who finds a full-sized tow buoy excessive but still needs more room than a simple pouch offers. It sits comfortably on the waist, acting as a low-profile belt that holds a tracker, energy gels, and even a small emergency whistle. The design is sleek and ergonomic, ensuring it doesn’t interfere with the natural rotation of the hips.

This product is the best transition piece for those moving from pool swimming to open water who are not quite ready for the bulk of a float. It provides a secure, ergonomic platform for a tracker while remaining nearly imperceptible during a workout. If the priority is comfort and streamlined movement, the Go-Pod is the logical next step.

Choosing a Holder: Pouch, Buoy, or Clip-On?

Selecting the right holder requires matching the equipment to the specific water environment. Tow buoys, such as the Swim Secure or Zone3, are mandatory for high-traffic areas where visibility is non-negotiable. Conversely, pouches and clip-ons work better for calm, enclosed water bodies where the swimmer is the primary occupant.

Consider the “drag factor” as a critical variable. Buoys create resistance that can fatigue shoulders during long sets, whereas clips or cap-mounts allow for near-natural stroke mechanics. Always test the setup in a controlled environment before heading into deep water to ensure the gear does not snag or shift during active swimming.

Tracker Types: Bluetooth (AirTag) vs. True GPS

It is vital to understand that a Bluetooth tracker like an AirTag is not a true GPS device. Bluetooth trackers rely on proximity to other Apple devices to report a location, meaning they will not provide a real-time track when the swimmer is far offshore. They are excellent for recovery in the event of lost gear or for localized tracking near a beach or dock.

True GPS trackers communicate via satellite and provide live tracking data, which is essential for safety in remote, open-water locations. If the objective is to share a live location with a shore-based safety observer, opt for a satellite-linked device. Bluetooth trackers are for peace of mind near civilization; satellite devices are for genuine offshore safety.

How to Test and Maintain Your Waterproof Seal

The integrity of any waterproof device depends entirely on the condition of the seals. Before every swim, inspect the closure mechanisms for sand, salt crystals, or hair that might compromise the seal. A quick rinse with fresh water after each session prevents salt buildup, which is the leading cause of micro-tears in silicone gaskets.

Perform an “empty test” by submerging the device in a bucket of water with a dry paper towel inside for 30 minutes. If the paper towel emerges bone-dry, the case is ready for the open water. Never leave a tracking device in a hot car, as extreme heat can cause the internal air to expand, placing unnecessary pressure on the seals and potentially forcing moisture inside.

Using Your Tracker for Open Water Race Day

Race day introduces different challenges, primarily related to gear checks and race regulations. Most sanctioned open-water races have strict rules about what can be towed behind the body; verify that a tow buoy is permitted before arriving at the start line. Ensure the tracker is synced and fully charged the night before to avoid common morning-of-race malfunctions.

Visibility remains the top priority during a race, even in a crowded field. Position the tracker so it does not interfere with the swim start or the congestion of the first buoy turn. A well-placed tracker provides the swimmer with the confidence to push the pace, knowing that personal gear is secure and the path is clearly marked by the presence of the device.

Selecting the right tracking holder transforms the open water from an intimidating expanse into a safe, data-driven playground. By matching the hardware to the specific needs of the environment and prioritizing consistent maintenance, every swimmer can focus on the rhythmic joy of the water rather than the security of their gear.