Start with fit
A vertical mouse changes the angle at which you hold the device. That shape alone does not tell you whether it will suit your hand. Check the stated dimensions, handedness, and button placement. If possible, try reaching the main buttons while keeping your grip relaxed, without stretching your fingers.
Match your daily work
Think about the actions you repeat: selecting spreadsheet cells, moving between browser tabs, or adjusting small details in a design. Consider pointer sensitivity settings and the scroll wheel. Extra buttons are useful only when their position and software suit the shortcuts you actually want to use each day.
Check the connection
Confirm whether the mouse uses a cable, Bluetooth, or a receiver, and whether your computer supports that connection. A receiver needs a compatible port. For wireless models, compare the charging method or replacement battery requirements. Check whether configuration software supports your operating system before relying on advertised customization features.
Give yourself a fair trial
Check the return conditions before buying a shape you have never used. Allow time to adjust your pointer settings and desk position, then judge ordinary tasks rather than a few minutes of novelty. A mouse that feels awkward or slows essential work may simply be a poor fit for you.
A new product should solve a clear problem or add something useful to your day. Check the exact specifications and compatibility before spending.