How to use Google Gemini on a Samsung Galaxy (side button and app)

By Saadat Rafiq · 2 min read · 3 steps · Published 6 October 2026

Device

Android

Shown on

Samsung Galaxy A57 5G (SM-A576B), One UI 8.5, Android 16

App

Settings

Path

Settings › Advanced features › Side button › Long press

Real screenshots

3 of 3 steps

Checked

October 2026

Sources

1 official, linked below

Step by step

1. 

   Press and hold the side button

   Gemini opens at the bottom of the screen with Ask Gemini, the microphone and Gemini Live.

   Done

2. 

   Ask about the screen

   Share screen with Live lets Gemini see what is on the screen and talk about it.

   Done

3. 

   Set the side button

   If holding the button does something else, open Settings, Advanced features, Side button. Long press shows Digital assistant (Google) on ours.

   Done

About this guide

Gemini is Google's assistant. Samsung says it needs a Google account, an internet connection and age 18 or over, and features differ by country. We only looked at these screens on our phone and changed nothing.

The screenshots are from a Samsung Galaxy A57 5G with One UI 8.5 and Android 16, in Dark mode. Other Galaxy phones on One UI 8 use the same menus; on older One UI versions a few names and positions differ.

Good to know

To turn the phone off when the side button opens Gemini, use the power icon in the quick panel, or How to power off your phone on the same settings page.

Bixby is Samsung's own assistant: how to turn off Bixby.

In short: Hold the side button, Ask Gemini. Settings, Advanced features, Side button, Long press: Digital assistant.