Start by confirming the case fits a GoPro Max 360 2025 and provides reliable water protection. Check the depth rating and seal design (O-ring) to prevent leaks. Assess whether the case allows easy access to buttons, ports, and the lens while underwater, and whether it protects the camera without blocking the lens. Consider build quality, material, and brand reputation, including GoPro's own cases or trusted third‑party brands like Ulanzi, and look for a warranty. Also weigh size, weight, and price to fit your budget and carrying needs.

The waterproof rating should indicate submersion depth and duration, with a reliable seal such as an O-ring to prevent leaks. Look for real‑world testing, clear instructions, and a design that keeps all critical ports accessible. Ensure the case protects the lens without distortion and supports your mounting options. Regularly inspect seals and replace them if you notice wear.

For beginners, choose a lightweight, easy‑to‑use case with straightforward locking and simple access to essential controls. For pros, prioritize rugged protection, consistent seals under pressure, and compatibility with multiple mounts and accessories. Your choice should reflect how you plan to shoot underwater or in wet environments.

After use, rinse the case with fresh water and dry completely to prevent corrosion. Inspect the seals (O-rings) for cracks and replace worn seals if needed, following the brand’s guidance. Make sure mounting hardware matches the camera and any accessories you plan to use, and store the case clean and dry when not in use.

Avoid submerging the camera without a prior seal test in water. Don’t ignore temperature changes that can affect seals or cause lens fog. Don’t force latches or ports when closing the case, and don’t assume every case fits every accessory—verify compatibility with your mounts and filters.