Brief Technical Description
The TELESIN Underwater Snorkeling Diving Phone Case is a universal waterproof housing designed to accommodate smartphones with 5.4″ to 6.9″ screen sizes — that includes the iPhone 17 Pro Max. It boasts an IP68 waterproof rating and is rated down to 20 meters (66 ft) underwater, allowing serious underwater photography and videography. It features a one-piece sealed construction with a vacuum pump and one-way air valve to remove air and prevent fogging, a premium glass lens surface for high light-transmittance (around 97%) and mechanical control buttons for functions including shutter/zoom/mode. There’s also a built-in grip handle for handheld use, plus a Bluetooth remote shutter for remote trigger underwater. Designed for mobile shooters who travel, dive, snorkel or shoot water-borne content, this housing turns your iPhone into a capable underwater imaging tool.
My Firsthand Experience
I tested this housing on a day out on the water with my iPhone 17 Pro Max. I locked the phone into the case, used the vacuum pump to clear any air, secured the wrist-strap, and dove into a shallow reef. The underwater image clarity surprised me: colours held up, the housing didn’t fog, and I felt confident shooting handheld in the current. The noise of the housing was minimal, the controls responsive, and the Bluetooth shutter worked reliably even under water. It shifted how I shoot. Where previously I might have left the iPhone behind when water was involved, I now trusted it fully — and captured shots I wouldn’t have otherwise. If you shoot travel, pool, beach or underwater story-work with your iPhone, this is a strong tool
The Bottom Line
If you shoot with your iPhone 17 Pro Max (or any flagship phone in the 5.4″–6.9″ range) and you find yourself near water — pools, beaches, boat decks, snorkeling, cruising — then this case is a must-have. It opens up a whole new environment and protects your phone while letting you shoot confidently underwater. If you rarely shoot near water, or always carry a dedicated action camera instead, then maybe this is more gear than you need. But for iPhone-creators who want to bring the phone into the water and tell stronger stories, this housing deserves a spot in your kit.
Alternative Options Worth Considering
Transy Waterproof Phone Case
Jack’s Final Thoughts
Gear doesn’t shoot the story — you do. But the right enclosure, like this TELESIN housing, lets you take your iPhone into spaces you otherwise wouldn’t. It made me feel like the iPhone wasn’t just along for the ride — it was the ride. When you’re serious about mobile storytelling, this kind of tool changes the story you can tell.
