How the people use their phone with hands & fingers?. which of there screens best serves a user using this app with a single hand ?.
Image 1 and 2: The touch target in the two images are very tough to reach. u can test with your phone for this experiment.
Image 3: Touch target is nice and big. The place is really easy to touch with one hand.
Image 4: the touch target is very tiny so its very hard to touch with one hand. each element on the phone should be a minimum of 48dpi touch target and good padding.
Ow Zone: 50% of mobile users are using the mobile device through a single hand. This brings us to something called the OW zone. So the following diagram is very important to keep in mind when you are building a mobile application.
Red Zone: Once you should avoid. this is called OW Zones.
Green or Natural Zone: This is the touch zone. If you put any action or buttons in this area it will make your application much easier to use with a single hand.
Please take your smartphone and identify the OW Zones and natural zones.
OW Zone Image courtesy: Udacity
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