Ships from the USA
Screen + Lens Kit
SSL encrypted
Specifications ▾
Shipping ▾
Returns ▾
Description
Why the Waterproof Galaxy S8 Plus Case in Black Is Essential for Swimmers and Outdoor Workers
Picture your Galaxy S8 Plus slipping out of your hand at the edge of the dock and disappearing under the green water — and picture calmly fishing it out, wiping it on your shirt, and taking a photo of the sunset anyway. That is the entire point of this black waterproof Gorilla Case. It seals your Samsung Galaxy S8 Plus (2017, 6.2-inch Infinity Display) inside an IP68-certified full-body shell that is fully submersible to 6.6 ft / 2 m for 30 minutes, with a built-in HD clear screen guard, sealed port covers, and a slim two-piece design that snaps together in under a minute. Rain, snow, sand, dust, drops — bring it on. Built for fishermen, construction workers, kayakers, beach parents, and anyone who works or plays in the elements, this is the best Galaxy S8 Plus waterproof case for life outdoors. The Gorilla Family does not wait out the weather — and now your S8 Plus does not either.
Key Features
- Sleek black finish: a clean, matte black shell that looks at home on a job site, a boat deck, or an office desk.
- Premium materials: a rigid polycarbonate frame, shock-absorbing TPU bumper zones, and a flexible sealing gasket running the full perimeter.
- Case type: full-body, two-piece waterproof enclosure — front and back halves snap together around the phone to form a sealed unit.
- IP68 waterproof rating: fully submersible to 6.6 ft / 2 m for 30 minutes — pools, lakes, surf, and sudden downpours are all survivable.
- Snow proof and dirt proof: sealed against snow, ice, dirt, and dust particles — meets or exceeds its ingress protection rating in the nasty stuff too.
- Built-in screen protection: an integrated HD clear, scratch-resistant screen guard covers the 6.2-inch display while keeping touch response crisp.
- Camera protection: optically clear sealed windows over the 12 MP rear camera and front camera — underwater photos are very much on the menu.
- Drop protection: the sealed shell and TPU corners absorb drops from about 6.6 ft / 2 m onto hard surfaces.
- Charging compatibility: a gasketed port cover opens for charging — note that the recessed opening fits standard USB cables and narrow connectors only; oversized aftermarket plugs will not reach. Qi wireless charging is not recommended through the sealed shell — cable charging is the reliable path.
- Slim for its class: layers of protection without the brick — the case adds roughly 3 mm of thickness and about 2.9 oz (82 g).
- Compatibility: designed for the Samsung Galaxy S8 Plus (2017, 6.2-inch) ONLY. It does NOT fit the Galaxy S8, S8 Active, S9, S9 Plus, or Note 8.
Materials Explained — What Polycarbonate and TPU Actually Feel Like
The structural shell is polycarbonate — the same impact-resistant plastic used in bike helmets and aircraft cockpit windows. It is rigid, light, and dimensionally stable, which is exactly what a waterproof seal needs: a frame that does not flex and let water find a path inside.
The corners and grip zones are TPU — the rubbery polymer used in running shoe soles and hockey puck rims. It soaks up impact energy when the case hits concrete and gives your wet hands something to hold onto when you are climbing out of the water.
Running the full perimeter is a soft sealing gasket — think of the rubber ring inside a mason jar lid, engineered to compress evenly when the two halves snap together. That gasket, plus the membrane-sealed buttons and port cover, is what turns a phone case into a submarine hull.
Altogether the case weighs about 2.9 oz (82 g) and adds roughly 3 mm of thickness — remarkably slim for a sealed IP68 enclosure, and a fraction of what a dive housing would add.
Browse More Galaxy S8 Plus Cases
Not every day is a lake day — browse the full Galaxy S8 Plus cases collection, shop now and find the right protective phone case for your lifestyle.
Real-World Use Cases
- The Fisherman: nets a photo of the catch with wet hands over open water, because a dropped phone now means a rinse, not a funeral.
- The Construction Worker: rain delays, mud, concrete dust, and the occasional scaffold drop — the sealed shell handles the whole forecast.
- The Pool Parent: films cannonballs from the water's edge — or from in the pool — without a flicker of panic.
- The Kayaker: straps the S8 Plus to the deck for navigation, knowing a capsize at 6.6 ft / 2 m is within spec.
- The Winter Commuter: snow, slush, and salt spray on the platform never touch the phone — the case is snow proof by rating, not by luck.
Feature-to-Benefit Mapping
| Feature | Benefit |
|---|---|
| IP68 sealed enclosure | Survives full submersion to 6.6 ft / 2 m for 30 minutes — pool drops become anecdotes |
| Built-in HD screen guard | The 6.2-inch display is covered the moment the case clicks shut — no separate protector to buy |
| TPU shock corners | Absorbs drops from about 6.6 ft / 2 m onto concrete, dock planks, and tile |
| Sealed against snow, dirt, and dust | Job sites, beaches, and ski lifts are all in-bounds year round |
| Slim 3 mm, 2.9 oz (82 g) build | Full-body sealed protection that still slides into a jeans pocket |
Step-by-Step Installation Guide
- Water-test the empty case first: snap it shut with a paper tissue inside and submerge it for 30 minutes — if the tissue stays dry, your seal is good.
- Clean your Galaxy S8 Plus with a microfiber cloth and remove any existing screen protector — the case is designed to seal against the bare screen, and a protector underneath will hurt touch response and compromise the seal.
- Open the two halves, lay the phone into the back shell, and check that the gasket sits flat in its channel all the way around.
- Press the front half on starting from one end, working around the perimeter until every latch point clicks — listen for the snaps.
- Verify the buttons, speaker, microphone, and charging port cover, and confirm there are no gaps at the seam before the first swim.
Troubleshooting and Tips
- Tissue came out damp during the water test? Re-seat the gasket and check the port cover, then test again — never install the phone until a test passes. If it still fails, email our team.
- Touchscreen feels less responsive? Make sure no aftermarket screen protector is installed under the case, and wipe both the screen and the inside of the guard — trapped moisture or film causes most touch issues.
- Charging cable will not plug in? The sealed opening fits standard narrow connectors only — use the original Samsung cable or a slim-headed equivalent.
- Muffled audio on calls? Normal for a sealed case — the membranes trade a little volume for waterproofing. Speakerphone and Bluetooth are unaffected.
- Cleaning advice? Rinse the closed case with fresh water after salt or pool exposure and dry the seam before opening — avoid alcohol wipes, which can degrade the gasket over time.
FAQs
Which phones does this case fit?
It fits the Samsung Galaxy S8 Plus (2017, 6.2-inch Infinity Display) only. It does NOT fit the Galaxy S8, S8 Active, S9, S9 Plus, or Note 8. We carry a separate waterproof case sized for the standard S8.
How waterproof is it, really?
It is IP68 certified and fully submersible to 6.6 ft / 2 m for 30 minutes. That covers pools, lakes, beach days, and downpours — it is not a scuba housing, so keep dives shallow and brief.
What comes in the box?
The two-piece waterproof case with built-in screen guard and sealed port cover, plus an instruction sheet covering the water-test procedure.
Do I need to water-test it first?
Yes — always. Snap a tissue inside the empty case and submerge it for 30 minutes. If the tissue stays dry, install your phone. If it gets wet, re-seat the seal and test again, or contact our team.
Can I use my own screen protector with it?
No — the case only fits the Galaxy S8 Plus with no screen protector installed. A protector underneath affects touch sensitivity and can break the waterproof seal. The built-in HD guard does that job instead.
Does wireless charging work through the case?
We recommend cable charging. The sealed shell adds distance between the coil and a Qi pad, which makes wireless charging unreliable — the gasketed port cover gives you a dependable wired connection instead.
Will my charging cable fit?
Original Samsung cables and other narrow connectors fit through the sealed opening. Oversized aftermarket plug heads will not reach the port.
What is the drop protection rating?
About 6.6 ft / 2 m onto hard surfaces — the polycarbonate shell spreads the impact and the TPU corners absorb it, wet or dry.
Does the rear fingerprint sensor work?
The sealed back covers the sensor with a thin membrane, so it works but can be slower, especially with wet fingers. Many owners switch to iris unlock or a PIN during swim season — honest answer.
Can I take underwater photos?
Yes — sealed optical windows cover both cameras. Note that water itself blocks touchscreen input below the surface, so use the volume-key shutter shortcut for underwater shots.
Is the audio muffled?
Slightly — sealed membranes protect the speaker and mics at a small volume cost. Calls remain clear, and Bluetooth audio is completely unaffected.
Is it bulky?
No — at roughly 3 mm added thickness and 2.9 oz (82 g), it is one of the slimmer IP68 enclosures around and still pockets easily.
Is this a good gift?
Excellent — especially for the angler, contractor, or beach family in your life. Free 30-day returns make it a no-risk pick.
What is the return policy?
Yes — Gorilla Cases offers free 30-day returns on all Galaxy S8 Plus cases. If the case doesn't fit your Galaxy S8 Plus or you're not satisfied, contact our team within 30 days for a fast replacement or full refund. No restocking fees.
Snow and dirt — really sealed?
Yes. The same gasket system that keeps water out seals against snow, ice, dirt, and dust particles, meeting or exceeding its ingress protection rating.
Why Gorilla Cases?
Gorilla Cases exists because phones should survive real life — lakes, job sites, blizzards, and gravity. The Gorilla Family trusts us because we drop-test and dunk-test every design and describe honestly: we tell you to water-test the case before trusting it, because that is what we do too. Every order is backed by free 30-day returns. Your Galaxy S8 Plus was built for adventure — seal it up and go find some. Shop now at gorillacasestore.com
What Gorilla Family Customers Are Saying
★★★★★
Went swimming with my phone on purpose
Tissue test passed, so I took it straight into the pool with the kids. Filmed underwater for ten minutes at the shallow end — bone dry inside. The black shell looks sharp enough that I leave it on at work too.
— Marcus B., San Antonio, TX
★★★★★
Survived a fall into the lake
Phone went off the dock in about four feet of water and sat there while I found my net. Pulled it up, wiped it off, kept fishing. The built-in screen guard has also eaten two tackle-box scratches that would have ruined the display.
— Earl D., Duluth, MN
★★★★★
Job site approved
Concrete dust, rain, and a drop off a six-foot ladder onto rebar mesh — the case shrugged at all of it. Buttons still click fine through the covers and my original Samsung cable fits the port no problem.
— Stan K., Manchester, UK
★★★★★
Beach holiday hero
Two weeks of sand, salt water, and sunscreen hands. Rinsed the case under the tap every evening like the instructions say and the phone stayed spotless. Photos through the camera window came out perfectly clear.
— Tegan M., Sydney, NSW, Australia
★★★★½
Waterproof as promised, audio takes a small hit
Dunked it, dropped it, snowed on it — flawless. The only trade-off is call audio is slightly muffled through the sealed speaker membrane, so I use Bluetooth in the truck. Fair trade for a phone that survives the lake.
— Gary H., Calgary, AB, Canada
Read More From Gorilla Case Blogs
Wondering how waterproof tech protection keeps leveling up? Read Best Waterproof and MagSafe Tech Cases for 2026, then see a sibling design in action in Galaxy S20 FE Waterproof Case: Rugged Full-Body Protection.