How to choose the right waterproof phone case

Choosing the best waterproof phone case means understanding IP ratings, materials and features that offer real protection. This guide breaks down the difference between waterproof vs. water-resistant cases, what to look for in durable phone case materials and how to care for your case. Knowing what features to look for can help you choose the best waterproof phone case for your lifestyle — whether you're at the beach, on a hike or navigating everyday spills.

Why waterproof phone cases matter

Our phones go everywhere with us, and some days come with more spills, splashes and messes than others. Water damage is one of the most common causes of phone failure. Even phones labeled water-resistant are not invincible. Rain, pools and everyday accidents can cause significant damage. A waterproof case can help keep your phone safe and offer peace of mind so you don’t have to worry about how to get water out of an iPhone.

Waterproof vs. water-resistant: Know the difference

It’s important to get familiar with the IP rating system. This rating tells how well a case protects your phone from water and dust — the higher the number, the better the protection.

• Water-resistant cases: Are typically rated IP67 and offer protection against splashes, rain or brief drops in shallow water.
• Waterproof cases: Have a rating of IP68 or higher and can handle full submersion, typically up to 2 meters (about 6.5 feet) for 30 minutes or more, depending on the specific case.

So, what level of protection do you need? If your perfect day includes sunbathing on the sand, relaxing poolside or hiking near a stream, an IP67-rated case should be enough to guard against light splashes and brief water contact.

If your adventures take you snorkeling, paddleboarding, white-water rafting or anywhere your phone might be submerged underwater for longer, you’ll want a case rated IP68 or higher to ensure protection.

Choosing the right rating comes down to your lifestyle and environment where you use your phone. The more water exposure you have, the more protection you need.

What waterproof phone cases are made of

OtterBox uses a polycarbonate shell, synthetic rubber seals and hydrophobic membranes to create the kind of armor your phone needs. Waterproof phone cases include tactile buttons and sealed port covers that keep water and dust out while remaining easy to access. They’re designed to maintain screen touch sensitivity for responsive control, preserve microphone and speaker clarity and support wireless charging.

How waterproof phone cases are tested

All waterproof phone cases undergo a series of rigorous lab tests to determine their IP ratings, including assessments for depth, duration and pressure.

OtterBox goes even further. Every OtterBox phone case and screen protector undergoes a comprehensive testing process to ensure its durability. Cases also undergo additional drop tests and are sealed for dust and particle intrusion. 

Some models, like the Frē Series, are MIL-STD-810G certified for drop and shock protection.

What to look for in a waterproof phone case

Consider these factors when deciding which underwater phone case is right for your device:

• IP rating: Look for a rating of IP68 or higher to ensure reliable protection from both dust and water.
• Depth and duration: Identify how deep and long a case can be submerged.
• Drop protection: Determine if the case is rugged enough to withstand everyday drops or outdoor adventures.
• MagSafe compatibility: Apple users should verify whether the case is compatible with MagSafe charging and accessories.
• Fit and functionality: Ensure the waterproof phone case doesn’t block sound, camera functionality or access to buttons and ports.
• Style: Decide if you’re looking for a case that’s slim and sleek or rugged and adventure-ready.

“We test all of our materials for durability against everyday chemicals such as skin oils, sunscreen, bug spray, household cleaners, and more since these substances can degrade materials over time and compromise the performance of your phone case. We also test in extreme environments including heat and humidity… and cold temperatures… to ensure the materials we use will hold up." Doug Kempel, Vice President of Engineering at Otter Products.

The best waterproof case you can trust

OtterBox phone cases have been protecting devices for years, earning a reputation through high-quality, dependable design. One of the most popular options is the Frē Series, offering full waterproofing with an IP68 rating and reliable drop protection. Engineered by LifeProof, these rugged cases are built for any environment and are compatible with select iPhone models and MagSafe accessories.

The slim, lightweight profile makes it a go-to choice for swimming, hiking, rainy days and everyday use. Whether you're out on an adventure or simply navigating the hazards of daily life, the Frē Series offers the protection your phone needs without sacrificing style or convenience.

Explore the Frē Series to protect your phone before your next adventure. 



Why you need a waterproof phone case

Our phones are with us through it all, work meetings, weekend adventures, family time and everything in between. They’re always in our hands, bags and pockets, exposed to life’s daily chaos. And like us, they have their fair share of mishaps.

You don’t need to be swimming laps or paddleboarding to benefit from a waterproof case. We all have those panic moments posing just as much risk:

• Dropping your phone in the sink, the toilet, or a surprise puddle
• Snapping beach photos with wet hands or kayaking with a splash-happy kids
• Getting caught in a downpour during your commute
• Knocking over a drink on your desk
• A rogue cannonball at the pool or an unexpected hot tub splash

A waterproof phone case is more than just a poolside accessory — it provides everyday protection for life’s unpredictable moments.



Are there downsides to waterproof phone cases?

While waterproof phone cases are worth the investment, they can come with some trade-offs:

• Perceived bulkiness: Better protection requires a little more space. Waterproof phone cases are often slightly bulkier than standard cases due to their layered sealing and port covers. But OtterBox cases provide serious protection while keeping a slim profile. 
• Perceived speaker and screen sensitivity: Lower-quality models may affect speaker clarity or screen sensitivity. If you're watching videos, taking calls on speaker or playing music, this could be noticeable. OtterBox cases, on the other hand, have been engineered and tested to ensure sound quality. 
• Proper sealing: Even a slight misalignment can compromise protection, so it’s essential to follow installation instructions and inspect the seals regularly.
• Occasional maintenance: Rinse your case after exposure to saltwater or chlorine to maintain quality.
• Longevity: Waterproof cases are constructed for durability but may not provide permanent protection.

Alternatives to waterproof phone cases

Many newer devices, including the latest iPhones, come with an IP67 or IP68 rating — meaning they can handle minor water exposure like splashes or brief dips. But that rating applies to the device alone, not real-world use. OtterBox waterproof cases combine IP68 certification with precision engineering to deliver true waterproof protection — designed and tested to keep your phone safe during full, prolonged submersion.

Those looking for more affordable options may consider dry bags or waterproof phone pouches. While these options are fully waterproof, they’re also bulky and inconvenient for making calls, taking photos, sending frequent messages or daily use. 

A DIY method, such as using a plastic zip bag, is risky with no guaranteed protection. 

Alternatives offer partial or situational protection, while waterproof cases provide all-in-one, everyday peace of mind.

"This iPhone case is a vibrant color and waterproof, proving to be stylish and functional. I tested the case and submerged it in water for a few minutes and it proved to be completely waterproof. The case proved it is truly a tight enough fit on the phone not allowing even a drop of water in." Verified OtterBox Customer.

How to care for and maintain your waterproof phone case 

Waterproof cases are a smart investment and can provide long-term protection with proper care. To get the most out of your waterproof phone case, it’s important to follow a few simple tips:

• Always follow the instructions before submerging
• Check for cracks or wear around seals regularly
• Rinse off after contact with saltwater or chlorine
• Dry the case thoroughly before opening it

Protect your device

Your phone goes everywhere — it’s your connection to work, family and fun. Since life happens fast, it’s essential to protect your device with the best waterproof phone case. A waterproof case seamlessly integrates into your daily life, offering the right balance of protection and functionality.