Voice calls occupied 22% of the users, while 18.9% were engaged in passive activities—most listening to audio and some watching a video. We considered interactions to be voice calls only if users were holding their phone to their ear, so we undoubtedly counted some calls as apparent passive use.
The users who we observed touching their phone’s screens or buttons held their phones in three basic ways:
- one handed—49%
- two handed—15%
While most of the people that we observed touching their screen used one hand, very large numbers also used other methods. Even the least-used case, two-handed use, is large enough that you should consider it during design.
Read the full article at UXmatters: How Do Users Really Hold Mobile Devices?