This document summarizes a study that evaluated using smartwatch notifications to optimize smartphone micro-usage. The study involved 14 students who used smartwatch notifications for 3 days. It measured perceived usefulness before and after the evaluation period, system usability, and how notifications and actions on the smartwatch impacted smartphone usage. The results showed that smartphone micro-usage decreased 5% while application micro-usage on the phone increased 5% when using smartwatch notifications, suggesting it can optimize brief usage sessions.

1. Optimizing Smartphone
Micro-usage with
Smartwatch Notifications
Laurens Bolle, Robin De Croon, Erik Duval
http://augment.cs.kuleuven.be

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16th international conference on Human-computer interaction with mobile devices & services (MobileHCI '14). ACM, New York, NY, USA, 243-252.

3. Ferreira, D., Kostakos, V., Dey, A.K. AWARE: mobile context instrumentation framework. Frontiers in ICT (Vol 2, Issue 6), 2015,

4. 14 students

6. http://arstechnica.com/gadgets/2014/06/android-wear-review/3/

10. http://forresterhighschool.org.uk/wp-content/uploads/2014/02/Evaluation.jpg
- 9 students
- 3 days
- Perceived usefulness
- SUS
- User tracking

11. perceived usefulness (before  after)
before evaluation
after evaluation
F. D. Davis. Perceived usefulness, perceived ease of use, and user acceptance of information technology. MIS quarterly, pages 319–340, 1989.

12. System Usability Score (average score 80/100)
Brooke, John. "SUS-A quick and dirty usability scale." Usability evaluation in industry 189.194 (1996): 4-7.

13. 0 50 100 150 200 250 300 350 400 450
SMS
Email
notifications vs actions
Notifications Actions

14. 0%
10%
20%
30%
40%
50%
60%
Mark as Read Delete Open on phone Remind me Quick Reply
Most used actions
SMS Email

15. smartphone micro-usage
decreased 5%
application micro-usage
increased 5%

16. Question slide
http://www.macobserver.com/imgs/teaser_images/20150410apple_watch_questio