There are many elements to take into consideration when formulating your mobile user experience, but it’s extremely important to keep thumb friendliness top-of-mind.
On desktop devices, users use a mouse to interact with the screen. They can move their mouse to a navigation menu with ease. This is because the mouse does not constrain their wrist movement.
But when users hold a mobile phone, their thumb has a limited range of motion. There are certain areas of the screen they cannot reach. These areas will vary based on which hand they use to hold their phone and the size of the phone’s screen.
When you place a menu in a hard to reach area, users have to regrip their phone to move their thumb closer. Or, they have to use their other hand to interact with that area. This extra work can make navigating harder and slow down the user’s task…