How do I switch the MX Master 3S between multiple paired devices?

by Jax Dalton · Published 29/10/2025 · Updated 30/10/2025

Applies to / Last updated
Logitech MX Master 3S • Windows 10/11 • macOS 12+ • iPadOS 16+ • Android 12+ • Last updated: 29 October 2025

Problem

You’ve paired your MX Master 3S to more than one computer or tablet and want a fast, reliable way to switch control between them. You’re unsure which Easy-Switch channel each device is on, how Logitech Flow affects switching, or why the mouse sometimes doesn’t follow the screen you expect.

Solution

Use the Easy-Switch button on the underside of the MX Master 3S to swap between up to three paired devices. Assign a unique channel to each device and label them in Logi Options+ so you always know which is which. For cross-computer workflows, enable Logitech Flow to move your cursor between screens seamlessly and optionally copy files and text.

Step-by-step instructions

1) Confirm or set channel assignments

Turn the mouse On.
Press the Easy-Switch button briefly to cycle channels 1 → 2 → 3.
On each device, open Logi Options+ and check which channel the MX Master 3S is paired to.
If a device isn’t paired yet, put the mouse in pairing mode on the desired channel (press and hold Easy-Switch for 3 seconds), then add it via Bluetooth or Logi Bolt.

2) Switch devices with Easy-Switch

To change devices, tap the Easy-Switch button once to select the next channel.
Wait up to 1–2 seconds for the connection to become active, then test movement and clicks.
If nothing happens, tap again to cycle channels or hold for 3 seconds to re-enter pairing mode and re-establish the link.

3) Use Logitech Flow for seamless cross-computer control (optional)

Install Logi Options+ on all computers you want to use with Flow.
In Options+, enable Flow and arrange monitors to match your physical layout.
Move your cursor to the edge of one screen; the mouse will hop to the other computer and switch channels automatically.
Enable Clipboard/Files if you want to copy text, images, or small files between machines.

4) Use with tablets and phones

iPadOS/Android: Pair the mouse to a dedicated channel. To switch to the tablet, tap Easy-Switch to its channel. Some gestures and customizations may be limited on mobile OSs compared to desktop.

5) Label channels for clarity

In Options+, rename the device entries (for example: “Channel 1 – Work PC,” “Channel 2 – MacBook,” “Channel 3 – iPad”) so you can glance at the app and know which channel to tap.

Optional methods or tools

USB-A extension for Logi Bolt: Improves receiver placement and reduces interference if one of your computers uses a receiver.
Per-app profiles in Options+: Assign different actions on each computer so your shortcuts match the apps you use there.
Flow hotkeys: In Options+, you can set a key combo to trigger a Flow switch instead of dragging to the screen edge.

Best practices or tips

Dedicate one channel per device and avoid reusing the same channel for two computers; re-pairing wastes time and causes confusion.
If a device fails to take control after switching, wake the device (tap keyboard/trackpad) or toggle its Bluetooth. Laptops on aggressive power saving may delay reconnects.
For Flow, ensure all computers are on the same network and Options+ is allowed through the firewall.
Keep firmware and Options+ updated on every machine to maintain reliable switching and Flow performance.
If you work in a high-interference environment, consider using Logi Bolt on your primary computer and Bluetooth on your secondary to diversify radio use.

With clear channel assignments and labels in Logi Options+, switching with the MX Master 3S becomes muscle memory—tap the Easy-Switch button and you’re working on a new device in seconds. Logitech Flow takes this further by detecting your cursor at the screen edge and switching channels automatically, which can make dual-computer setups feel like one extended desktop.

If switching feels inconsistent, start with the basics: wake the target device, check that its channel is paired and not shared, and verify that Options+ is running on both ends. Receiver placement, Wi-Fi congestion, and low battery can also impact switching responsiveness, so keep the mouse charged and the receiver close, and place laptops on the same network for smooth Flow transitions.