Thumb zone

Graphical representation of the product areas (using the color spectrum) that are easiest or hardest to click with the thumb

Why it matters

Phones grew; thumbs did not. The comfortable arc a thumb sweeps covers the bottom and center of the screen, which is exactly why tab bars migrated to the bottom while the top corners collect the actions products hope you will not need. Audit your own app: if a frequent action lives in the top corner and a destructive one sits under the resting thumb, the layout is working against both.

See it

One-handed grip, right thumb — now notice where most apps put Back, Close, and Edit.

The numbers

49% of people hold their phone with one hand and reach with the thumb (Steven Hoober's grip study)

Related terms

Heatmap

Ask your assistant

Define "Thumb zone" using uxspot.

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