Small enough to pack, large enough to use
Try the mouse with the grip you normally use. Check whether your fingers reach the main buttons naturally and whether the scroll wheel requires an awkward movement. A very flat design can pack neatly while feeling different from the taller mouse on your desk.
Use it for a real task if possible: select a paragraph, resize a window, and move through a long document. Those actions reveal more than moving the pointer around an empty desktop. Notice whether you keep repositioning your hand or accidentally pressing a side button.
Consider the work surface too. A mouse that works well on your desk may struggle on a reflective café table. Check the manufacturer's surface claims and carry a thin suitable mat if that solves the problem without adding much bulk.
Quiet buttons can be useful in shared rooms, but listen to the wheel and secondary buttons as well. A silent main click does not describe every sound the mouse makes. Choose the features you will use instead of buying a long button list by default.
Make the connection easy to recover
Bluetooth leaves a USB port free, while a dedicated receiver can be convenient on a supported computer. If the mouse offers both, check how switching works and whether you can recognize the selected mode. A multi-device button can be helpful until it is pressed accidentally during packing.
A receiver needs somewhere secure to live. Built-in storage inside the mouse is useful if provided, but check that it holds the receiver firmly. Leaving a receiver protruding from a laptop in a tight sleeve can expose both to damage.
Think about batteries before a trip. A rechargeable model needs an appropriate cable and may or may not work while charging. A replaceable-battery model needs the correct spare. Neither arrangement is universally better; choose the one you are likely to maintain.
Turn the mouse off for travel if its design calls for it, and keep the sensor and feet free of debris. Pack it where other objects will not hold a button down. If it is comfortable enough for longer work and simple to reconnect, you have found a more useful travel companion than the absolute smallest model.
