Performance | Samsung Galaxy S9 and S9+


Image showing extreme close-up of the hardware inside Galaxy S9+

Stereo speakers tuned by AKG

Experience audio

Hear the action crisp and loud on stereo speakers tuned by AKG. They offer pure sound that's 1.4x more powerful than our previous Galaxy phone speakers.

AKG logo

Dolby Atmos

Immerse yourself in sound.

A new dimension of audio has arrived. Dolby Atmos delivers premium surround sound, putting you at the center of a theatre-like experience.

Photo of a person watching content on Galaxy S9+

Samsung Knox

Defense grade security

Better protect your sensitive data from prying eyes with the security of Samsung Knox. Knox constantly verifies the integrity of the device through a chain of security checks that begin at the platform level and extend to the operating system, and detects any tampering to help ensure your data is secure.

Hardware Root of Trust

Secure Boot & Trusted Boot


SE for Android

Illustration showing the five layers of Samsung Knox: Hardware Boot of Trust, Secure Boot & Trusted Boot, TIMA, SE for Android, Knox Container

Knox Container

Intelligent Scan

Your device unlocks only for you.

Access your phone easily with convenient technology that combines face recognition and iris scan. When face recognition needs help, iris scan kicks in to verify it's you—and vice versa, even in low light.

*Accuracy of Intelligent Scan may differ depending on surrounding conditions.

Person’s face with illustrated overlays depicting face recognition and iris scan
Person’s face with illustrated overlays depicting face recognition and iris scan
Person’s face with illustrated overlays depicting face recognition and iris scan



Open with a look, a tap, a pattern, or a PIN. There's a wide range of options you can use to keep your phone locked until you want it.













The engineering you expect from Galaxy.

What's innovative to others is already a Galaxy standard. Convenient features like water resistance* and wireless charging** are the small things that make a big difference in your daily life.

Water and dust resistance

Make a splash with the remarkable water-resistant phone.

You don't have to stop texting or taking photos because of the rain as the Galaxy S9 and S9+ is IP68 rated against water and dust . 

*Rated IP68, The Galaxy S9 and S9+ better protect against dust ingress and are water resistant. Water resistance rating is based on test conditions of submersion in up to 1.5 meters of fresh water for up to 30 minutes. Rinse residue/dry if wet.

Galaxy S9+ surrounded by splashing water
water and dust resistance on samsung galaxy s9 or s9+

Wireless charging

Charging up won’t tie you down.

Don't fumble with charging cables when you need to recharge. Place your phone on the wireless charger to power up with ease. And because it props up your phone at a comfortable angle, you can keep streaming and texting.

**Wireless charger, power cord, and adapter sold separately.

**Wireless charger requires power connection.

Wireless charging

AP and RAM

Switch apps in a snap.

Get your game on, watch a tutorial, or text while you stream the playoffs. Whatever you do, it's done fluidly and quickly with the powerful mobile processor and RAM combination.

Extreme close-up image of Galaxy S9+’s hardware

Expandable memory

Keep your memories with you

Your phone contains memories that keep you going, from photos and videos to music, apps, and files. Keep your important files, photos, and videos on hand with expandable memory up to 512GB.*

*MicroSD card sold separately.

Close-up of Galaxy S9+ with SIM tray ejected and Samsung 256GB MicroSD card inserted

Wi-Fi and LTE

When speed is all that matters.

Say so long to buffering. Thanks to LTE speeds up to 1.2Gbps, you'll download quickly and watch live streams smoothly.

*Actual speed may vary by country or carrier.

Image depicting speed of Wi-Fi and LTE capabilities

Samsung DeX

Make the world your office.

For a desktop-like experience, turn your Galaxy S9 or S9+ into a touchpad by connecting it to DeX Pad and a monitor. Access the photos and files on your phone as well as check email, surf the internet, and more on a full-size screen.

*Using the original HDMI cable and charger included with DeX Pad is recommended.

*DeX Pad, accessories, and monitor sold separately. Availability may vary by country or region.

*Available on selected Samsung smartphones running Android 8.0+.

Aerial view of a desk with Galaxy S9+ connected to DeX Pad and Samsung monitor