Waterproof Galaxy S20 Plus Case with Screen Protector & Fingerprint Unlock

Why the Waterproof Galaxy S20 Plus Case Is Essential for Swimmers and Outdoor Workers

Picture your Galaxy S20 Plus slipping out of your pocket at the edge of the pool, or catching the first fat raindrops of a storm while you are still ten minutes from the truck. The S20 Plus — with its 6.7-inch Dynamic AMOLED display from 2020 — is still a phone worth protecting, and this case protects all of it: an IP68-certified full-body seal rated to 6.6 ft / 2 m underwater for a full hour, a built-in screen protector that keeps the ultrasonic fingerprint reader working, and MIL-STD-810G-516 shockproof armor rated for 6.6 ft / 2 m drops. The clear back shows off your phone's color while the sealed shell shrugs off water, sand, dust, and snow. Built for swimmers, kayakers, beach parents, construction workers, and anyone whose phone lives outdoors, this is the best Galaxy S20 Plus waterproof case for real submersion — not just splashes. Welcome to the Gorilla Family.

Key Features

• 4 color choices: Black/Clear, Pink/Clear, Purple/Clear, and Teal/Clear — a colored frame with a crystal-clear back that shows off your phone.
• Premium materials: a rigid polycarbonate front-and-back shell with shock-absorbing TPU bumper edges and precision waterproof gaskets.
• Case type: full-body, two-piece snap-together waterproof enclosure — front and back covers seal the entire phone in under a minute.
• IP68 waterproof certification: sealed against full submersion to 6.6 ft / 2 m for up to 1 hour — pools, lakes, surf, and storms included.
• Fingerprint unlock supported: the built-in front protector is tuned for the S20 Plus's ultrasonic in-display sensor — re-register your prints after installing and it reads through the membrane.
• Built-in screen protector: a clear front membrane guards the display edge-to-edge while keeping full touch sensitivity.
• Camera protection: a sealed optical-grade window covers the camera array, keeping water out without softening your photos.
• Charging compatibility: Qi wireless charging works through the sealed back, and a gasketed port cover flips open for USB-C cable charging — this is a Samsung-fit case, so there is no MagSafe and none is needed.
• Military-grade drop protection: exceeds MIL-STD-810G-516, withstanding drops from 6.6 ft / 2 m onto hard surfaces.
• Dust and snow sealed: the same gaskets that stop water stop sand at the beach and grit on the job site.
• Compatibility: designed for the Samsung Galaxy S20 Plus (2020, 6.7") ONLY. It does NOT fit the Galaxy S20, S20 Ultra, S20 FE, or S21 Plus.

Materials Explained — What Polycarbonate and Sealed TPU Actually Feel Like

The structural shell is polycarbonate — the same rigid, optically clear plastic used in aircraft cockpit windows and dive housings. It forms both halves of the enclosure, stays crystal clear through years of UV exposure, and gives the case its crush resistance when it is at the bottom of a loaded beach bag.

The perimeter bumper is TPU, the flexible shock-absorber from running shoe soles and hockey puck rims. It cushions the corners — where drop impacts actually land — and forms the compression seal between the two halves. The front membrane is a thin, touch-transparent layer that feels like a quality screen protector: your swipes glide, your taps register, and the ultrasonic fingerprint reader keeps working underneath it.

Altogether the case weighs about 3.2 oz (90 g) and adds roughly 3.5 mm of thickness — noticeably armored in hand, yet far slimmer than carrying a dry bag.

Browse More Galaxy S20 Plus Cases

Want to compare against wallet, glitter, or aluminum styles? Browse the full Galaxy S20 Plus cases collection, shop now and find the right protective phone case for your lifestyle.

Real-World Use Cases

• The Pool Parent: films cannonballs from the water's edge — and the inevitable splash zone — without a flicker of panic.
• The Kayaker: straps the phone to the deck for GPS tracking, knowing a capsize means a rinse, not a replacement.
• The Construction Worker: works through rain, concrete dust, and 6-foot drops off the scaffold — the case has a rating for all three.
• The Beach Vacationer: takes underwater photos in the shallows, then drops the sandy phone straight into the bag — the seal keeps grit out of every port.
• The Gift-Giver: sends one to the friend who has already drowned two phones — the gift that pays for itself the first time it rains.

Feature-to-Benefit Mapping

Step-by-Step Installation Guide

1. Clean your Galaxy S20 Plus with a microfiber cloth and remove any existing screen protector — the case has its own built in.
2. Peel the protective shipping film off both the inside of the front cover and the fingerprint recognition area — this step is the difference between a working sensor and a frustrating afternoon.
3. Lay the phone into the back shell, then align and snap the front cover on, working around the perimeter until every latch point clicks.
4. Confirm the charging port cover is pressed fully closed and inspect the seam for any gap — then, before trusting it near water, run the case empty through a 30-minute submersion test.
5. Delete your old fingerprints and re-register them with the case ON — the ultrasonic sensor calibrates to read through the membrane — then test buttons, speakers, and both cameras.

Troubleshooting and Tips

• Fingerprint unlock suddenly unreliable? Re-register your prints with the case installed — the sensor needs to learn the membrane. Registering before installation is the most common mistake.
• Muffled sound on calls? Flip open the charging port cover while talking for clearer audio, then snap it shut before any water exposure.
• Fog inside the case? Open it in a dry room and let both phone and case air out completely before resealing — trapped humid air condenses in cold water.
• Touchscreen acting up underwater? That is physics, not a defect — capacitive screens cannot read wet fingers reliably. Use the volume keys as camera shutter buttons below the surface.
• Cleaning after the beach? Rinse the sealed case in fresh water and dry with a soft cloth — never alcohol wipes, which degrade the gaskets and cloud the clear back over time.

FAQs

Which phones does this case fit?
It fits the Samsung Galaxy S20 Plus (2020, 6.7-inch) ONLY. It does NOT fit the Galaxy S20, S20 Ultra, S20 FE, or any S21/S22 series phone — the sealed shell is molded to exact S20 Plus dimensions.

What comes in the box?
The two-piece waterproof case (front cover with built-in screen protector plus back shell) and installation instructions.

How waterproof is it really?
IP68 certified: full submersion to 6.6 ft / 2 m for up to 1 hour. That covers swimming pools, lakes, snorkeling in the shallows, and every rainstorm ever — but not scuba depths.

Does wireless charging work through the case?
Yes — Qi wireless charging works through the sealed back, so you never have to open the port cover at all. There is no MagSafe; that is an Apple system, and the S20 Plus charges happily without it.

Does the in-display fingerprint sensor work?
Yes — with one critical step: re-register your fingerprints AFTER installing the case, and make sure the film over the fingerprint area was removed first. The ultrasonic sensor then reads reliably through the membrane.

What is the drop protection rating?
It exceeds MIL-STD-810G-516, surviving drops from 6.6 ft / 2 m — and because the whole phone is enclosed, face-down landings hit the built-in protector, not your screen.

Can I take underwater photos?
Yes — the sealed optical window keeps the cameras sharp. Underwater, use the volume buttons as the shutter since touchscreens cannot read wet fingers.

Are the buttons and ports usable?
Yes — buttons press through sealed flexible covers, and the USB-C port hides behind a gasketed flip cover that opens for charging and closes watertight.

Do I need to add my own screen protector?
No — and you should not. The built-in front protector is part of the waterproof seal; a second protector underneath would break both the seal and fingerprint function.

Should I test it before swimming?
Yes — do the 30-minute empty submersion test described in the install guide after every re-assembly. Thirty seconds of caution protects a $1,000 phone.

Will the clear back yellow over time?
The polycarbonate back resists UV yellowing far better than soft TPU clear cases — expect years of clarity with basic care.

Is it bulky for daily use?
It adds about 3.5 mm and 3.2 oz (90 g) — noticeable but pocketable. Many owners wear it daily as their everyday rugged case, not just on water days.

Is this a good gift?
For the boater, angler, or beach-lover in your life, it is the most practical gift on the shelf — and free 30-day returns make it risk-free.

What is the return policy?
Yes — Gorilla Cases offers free 30-day returns on all Galaxy S20 Plus cases. If the case doesn't fit your Galaxy S20 Plus or you're not satisfied, contact our team within 30 days for a fast replacement or full refund. No restocking fees.

Why Gorilla Cases?

Gorilla Cases exists because "water resistant" fine print has drowned too many good phones. The Gorilla Family trusts us because we test hard and describe honestly — real IP68 numbers, real military drop standards, and real instructions like the fingerprint re-registration step that other listings skip. Every order is backed by free 30-day returns. The Gorilla Family does not wait out the weather — and now your Galaxy S20 Plus does not either. Shop now at gorillacasestore.com

Read More From Gorilla Case Blogs

Curious how our waterproof builds handle the rough stuff? Read Galaxy S20 FE Waterproof Case: Rugged Full-Body Protection, or get the wider picture in Best Samsung Cases for Galaxy S, Note, and A Series in 2025.