Waterproof Galaxy S8 Case Black Gorilla Case


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Specifications
IP68 waterproof · Military-grade drop rating · PC + TPU build · MagSafe up to 25W. See full product details below.
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Ships free within the USA. Most orders arrive in 3–6 business days with tracking. International orders ship at a flat $4.99.
Returns
Please see our Return Policy for full details. If we ship the wrong or a damaged item, we cover a free replacement at no cost to you. Orders can't be cancelled once placed. Contact 978-797-0223 or info@gorillacasestore.com with your order number.

Description

Why the Waterproof Galaxy S8 Case in Black Is Essential for Anglers and All-Weather Workers

Rain on the job site. Spray over the gunwale. A toddler with a juice cup and excellent aim. Your Galaxy S8 meets water every week — the only question is whether it is sealed when it happens. This black waterproof Gorilla Case locks your Samsung Galaxy S8 (2017, 5.8-inch Infinity Display) inside an IP68-certified full-body shell that is fully submersible to 6.6 ft / 2 m for 30 minutes. It is waterproof, dust proof, snow proof, drop proof, and shockproof, with a built-in HD clear scratch-resistant screen guard completing the protection — and the super slim body barely adds to the size of the S8. Built for fishermen, construction workers, paddleboarders, snow-sports fans, and anyone who works in the elements, this is the best Galaxy S8 waterproof case for taking your phone where the weather is. IP68 certified — bring it on. Welcome to the Gorilla Family.

Key Features

  • Clean black finish: a matte black sealed shell that goes from boat deck to boardroom without looking like dive equipment.
  • Premium materials: rigid polycarbonate halves, shock-absorbing TPU zones, and a full-perimeter sealing gasket.
  • Case type: full-body, two-piece waterproof enclosure — the halves snap together around the phone into one sealed unit.
  • IP68 waterproof rating: fully submersible to 6.6 ft / 2 m for 30 minutes — pool drops, river crossings, and downpours are survivable events.
  • Snow proof: sealed from snow and ice — meets or exceeds its ingress protection rating on the mountain.
  • Dirt proof: sealed from dirt and dust particles — drywall dust, trail grit, and beach sand stay outside.
  • Built-in screen protection: an integrated HD clear, scratch-resistant screen guard covers the 5.8-inch display with crisp touch response.
  • Camera protection: sealed optical windows over both cameras — underwater photos and ski-lift selfies both work.
  • Drop protection: the sealed shell and TPU corners absorb falls from about 6.6 ft / 2 m onto hard ground.
  • Charging compatibility: the gasketed port cover fits standard USB cables and other narrow connectors only — oversized plug heads will not reach. For dependable charging use the cable; Qi wireless charging through the sealed shell is not recommended.
  • Compatibility: designed for the Samsung Galaxy S8 (2017, 5.8-inch) ONLY. It does NOT fit the Galaxy S8 Plus, S8 Active, S9, S9 Plus, or S7 Edge.

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. Rigid and dimensionally stable, it gives the waterproof gasket a frame that will not flex open under pressure, which is the difference between sealed and soaked.

The corners and grip surfaces are TPU — the rubbery polymer from running shoe soles and hockey puck rims — soaking up drop energy and giving wet fingers real purchase.

Between the halves runs a soft compression gasket, like the ring in a mason jar lid: snap the case shut and it squeezes into a continuous watertight line around the phone. Membrane-sealed buttons and the gasketed port cover finish the hull.

Altogether the case weighs about 2.8 oz (79 g) and adds roughly 3 mm of thickness — a super slim body for something rated to sit at the bottom of the shallow end.

Browse More Galaxy S8 Cases

Want options for drier days too? Browse the full Galaxy S8 cases collection, shop now and find the right protective phone case for your lifestyle.

Real-World Use Cases

  • The Fisherman: photographs the catch over open water with wet hands, because a slip now means a rinse instead of a replacement.
  • The Construction Worker: rain, mud, and concrete dust all shift long — the sealed shell treats the forecast as a suggestion.
  • The Paddleboarder: brings the S8 out on the water for music and maps, knowing a capsize at 6.6 ft / 2 m is inside the rating.
  • The Ski Weekender: snow proof by certification, not by hope — powder in the pocket never reaches the phone.
  • The Pool Parent: films cannonballs from the waterline with zero anxiety, then hands the phone to a dripping kid without flinching.

Feature-to-Benefit Mapping

Feature Benefit
IP68 sealed enclosure Fully submersible to 6.6 ft / 2 m for 30 minutes — water incidents become stories, not invoices
Built-in HD screen guard The 5.8-inch display is protected the moment the case clicks shut — nothing extra to buy
TPU shock zones Absorbs 6.6 ft / 2 m drops onto concrete, dock planks, and ski-lodge tile
Snow and dirt sealing Job sites, beaches, and black-diamond runs are all in-bounds, all year
Slim 3 mm, 2.8 oz (79 g) build Sealed full-body protection that still pockets like a normal case

Step-by-Step Installation Guide

  1. Water-test the empty case first: seal a paper tissue inside and submerge the case for 30 minutes — a dry tissue means a good seal. If it gets wet, check the seal again or email us.
  2. Clean your Galaxy S8 with a microfiber cloth and remove any existing screen protector — the case fits the S8 with no protector installed; one underneath hurts touch sensitivity and can destroy the seal's tightness.
  3. Lay the phone into the back half and confirm the gasket sits flat in its channel the whole way around.
  4. Snap the front half on from one end, working around the edge until every latch clicks audibly.
  5. Check the buttons, speaker, mic, and port cover, and inspect the seam for gaps before the first dunk.

Troubleshooting and Tips

  • Tissue test failed? Re-seat the gasket, close the port cover firmly, and run the test again — never install the phone until the empty case passes. Still failing? Email our team.
  • Touch feels sluggish? Confirm there is no aftermarket protector under the case and wipe the inside of the built-in guard — trapped film or moisture causes most touch complaints.
  • Cable will not reach the port? The sealed opening accepts standard narrow connectors only — use the original Samsung cable or a slim-headed equivalent.
  • Calls sound slightly muffled? Normal — the waterproof membranes trade a little volume for the seal. Speakerphone and Bluetooth are unaffected.
  • Cleaning advice? Rinse the closed case in fresh water after salt or chlorine exposure and dry the seam before opening — skip alcohol wipes, which degrade the gasket.

FAQs

Which phones does this case fit?
It fits the Samsung Galaxy S8 (2017, 5.8-inch Infinity Display) only. It does NOT fit the Galaxy S8 Plus, S8 Active, S9, S9 Plus, or S7 Edge. We carry the same waterproof design sized for the S8 Plus.

How waterproof is it?
IP68 certified — fully submersible to 6.6 ft / 2 m for 30 minutes. Pools, lakes, surf, and storms are covered; it is not a scuba housing, so keep submersion shallow and brief.

What comes in the box?
The two-piece waterproof case with built-in HD screen guard and sealed port cover, plus instructions including the water-test procedure.

Why do I need to water-test it first?
Because a seal is only proven by testing. Seal a tissue inside the empty case and submerge for 30 minutes — if the tissue stays dry, install your phone with confidence. If not, re-seat and retest or email us.

Can I keep my screen protector on?
No — the case only fits the Galaxy S8 with no screen protector installed. A protector underneath affects touch sensitivity and can destroy the tightness of the case. The built-in guard handles screen protection.

Does wireless charging work through it?
We recommend the cable. The sealed shell adds distance to the Qi coil, making wireless charging unreliable — the gasketed port cover gives you a dependable wired connection instead.

Which cables fit the sealed port?
Standard USB cables and other narrow connectors. Chunky aftermarket plug heads will not reach — the original Samsung cable is the sure bet.

What is the drop rating?
About 6.6 ft / 2 m onto hard surfaces — the polycarbonate shell spreads the hit, the TPU corners absorb it, wet or dry.

Does the rear fingerprint sensor work?
It works through a thin sealed membrane but can be slower, particularly with wet fingers — honest answer. Many owners use iris unlock or a PIN during swim season.

Can I shoot photos underwater?
Yes — both cameras sit behind sealed optical windows. Since water blocks touchscreen input, set the volume key as your shutter button before you dive in.

Does the case muffle sound?
Slightly — sealed membranes cost a little speaker volume. Call quality stays clear and Bluetooth audio is untouched.

How bulky is it?
Barely — the super slim body adds about 3 mm and 2.8 oz (79 g), so the S8 still pockets like an S8.

Is this a good gift?
One of the best for outdoorsy people — anglers, skiers, contractors, beach families. Free 30-day returns take the risk out of guessing.

What is the return policy?
Yes — Gorilla Cases offers free 30-day returns on all Galaxy S8 cases. If the case doesn't fit your Galaxy S8 or you're not satisfied, contact our team within 30 days for a fast replacement or full refund. No restocking fees.

Is it really snow proof and dirt proof?
Yes — the same gasket system that holds back water seals out 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 — docks, drifts, downpours, and gravity. The Gorilla Family trusts us because we dunk-test and drop-test every design and describe honestly: we tell you to water-test before you trust it, that the port fits narrow cables only, and that wet fingerprints are slow — all before you buy. Every order is backed by free 30-day returns. The weather is not waiting, and neither should your S8. Shop now at gorillacasestore.com

What Gorilla Family Customers Are Saying

★★★★★
Dropped it in the river. Twice.
Both times it sat in about three feet of current while I scrambled after it, and both times it came out bone dry. The tissue test sold me before I ever risked the phone. This case has paid for itself several times over.
— Hank W., Boise, ID

★★★★★
Site phone, rain or shine
Concrete dust and British weather all year and the S8 inside still looks new. Buttons work fine through the covers, the built-in guard has taken every scratch, and my Samsung cable fits the sealed port perfectly.
— Callum J., Leeds, UK

★★★★★
Pool season is no longer scary
Two kids, one pool, endless splash zone. I have filmed underwater handstand contests with this phone all summer. The case snaps together easily and the seam has never let in a drop. Slim enough for my jeans pocket too.
— Renee C., Mesa, AZ

★★★★★
Snowboarding companion
Powder, ice, and one rocky tumble — the phone has survived a full season in my jacket. Snow never gets in, the screen guard scrolls fine with the case on, and the black shell still looks sharp at après.
— Mathieu L., Quebec City, QC, Canada

★★★★½
Seal is perfect, fingerprint sensor got lazy
Waterproofing is genuinely flawless — tested in the lake monthly all summer. Knocking off half a star because the rear fingerprint reader through the membrane is hit-or-miss with damp hands, so I switched to a PIN. Everything else is superb.
— Travis N., Portland, OR

Read More From Gorilla Case Blogs

Curious how Gorilla waterproofing has evolved since the S8? Read Galaxy S20 FE Waterproof Case: Rugged Full-Body Protection, then jump to the modern flagship review in Best Galaxy S25 Waterproof Case 2026: IP68 Full-Body Protection Review.

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