Introduction to wearables and wearable app design
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A talk I gave at the City University of Hong Kong Apps Lab "We Can Code" seminar series. This presentation provides a brief introduction to wearables, their architecture, areas of application and outlook for the near future. It also highlights salient aspects of wearable design (fashion, social, functional) and concludes with a discussion on the design of apps for Samsung Gear line of smart watches.
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Introduction to wearables and wearable app design
- 1. Introduction to wearables and wearable app design
- 2. Table of Content • What are wearables ? • Architecture of Wearables /Sensors • Notable Examples • Why Should we care ? • What are the Applications ? • Elements of User Interaction Design for Wearables (smartwatches). • Whats Next.
- 3. What are Wearables Body worn computers . • Highly ubiquitous • Are sensor rich • Increasingly complex * “wearables” sometimes used interchangeably with “sensor devices”
- 4. • Wrist • On Shoes • Embedded in Clothes • In Jewelry • Earbuds/Headphones • Glasses • Arm Bands • Chest Bands • Contact Lenses • Tatoos
- 6. Architecture of Wearables Processor (Arm Cortex A series, Exynos) + Power Operating System (RTOS, Android, Tizen) Communication (E.g BLE) Hardware Sensors (e.g Heart Rate ) Extensible Hardware Platform Extensible Software Platform (apps)
- 7. • Heartrate, • Accelerometer • Gyroscope, • UV • Light, • Pressure, • Magnetic Field • Proximity • Accelerometer • Gyroscope, • Light • Magnetic Field • Proximity • Accelerometer • Gyroscope, • Magnetic Field • Proximity • Accelerometer • Gyroscope, • Proximity • EEG (Cardiac rhythm). • Accelerometer • Gyroscope, • NO • NO • YES • NO • NO • YES • YES • YES • YES • YES Gear 2 Google Glass NODE+ Sensor Bionym Nymi FitBit Sensors Extensible Hardware ? Extensible Software ?
- 8. Why do we Care ?
- 9. Why do we Care Gartner 2014.
- 10. Why do we Care • Next frontier of Consumer Electronics • Billion Dollar Industry Potential (estimated at $9.2 billion in 2014, IDTechEx) • A new paradigm of programmable wearables (more data to work with, more use cases) • Its new, and exciting! As developers, there is opportunity to create the use cases and establish the wearable hype
- 11. What Are the Applications • Security Wearable payments, authentication • Health / Wellness / Fitness Applications in addressing chronic diseases and aiding medical consultations. • Quantified Self data acquisition on aspects of a person's daily (e.g. food consumed, quality of surrounding air), states (e.g. mood, arousal, blood oxygen levels), and performance (mental and physical). • Education and Learning Research. Opportunities to easily measure things previously unknown or difficult. • Others – entertainment, insurance, automation ..
- 12. Designing Interfaces for the Smartwatch – Samsung Gear 2, Gear S Why focus on design? Why Smartwatches ? Why Gear ?
- 13. Elements of UI for Wearables Irrespective of your background – Android Java, iOS Objective C, Web Apps (HTML, JavaScript, Php) e.t.c , designing Apps for the smart watch wearable form factor still props up challenges. You will need to design for - Social / Fashion norms - Sensing capabilities - Form and Function.
- 14. Social / Fashion Norms • Smartwatches ARE a fashion accessory. • Design watchfaces that are meaningful and elegant • Build social elements into your use case to improve stickiness • Build trust with known interaction models. Progress from the Known to the Unknown , and update the user along the way. • Design to empower the user – offer multiple input options via settings.
- 15. Sensing Capabilities Design to leverage sensors for input and feedback. - Accelerometer based gestures. X,y.x – axis tilt - Leverage vibration for personalized feedback - Leverage more advanced touch gestures Swipe, pan, pinch , double tap to expand interaction model. But teach the user. - Leverage voice input and TTS
- 16. Form and Function • Be legible 35 px minimum font size. • Single action per screen . Aim for two buttons max per screen . Beware of small text and buttons in games. • Let each app take care of a given need. Give as much depth as possible. • The Gear is meant to be glanceable . Avoid apps/use cases that require extended continuous use (E.g some games) • Optimize for Space Remember to minify your files and remove unused scripts. Limited device storage.
- 17. Work done .. Foqus A wearable app for Mental Health and Wellness
- 18. Apps Built on these principles
- 19. Next Talk ? • Installation of the Tizen Wearable IDE • Developing a sample app interface using JQuery and Hammer.js for expanded touch interactions • Developing a simple pedometer app to track steps, calories and distance walked. • Expanding app to track motion, and making inferences on human activity
- 20. Whats Next ? • An App development Team Lets make some apps together! • An app testing Team Lets build new knowledge in the area of wearables • Please take the next 2 minutes to fill in the following form. http://goo.gl/mFsAA2
- 21. Supplemental Learning Materials • I have written a rich panoply of tutorials to get you started developing apps for the Gear 2 line of smartwatch devices. • Access them at: denvycom.com/blog/tag/gear-2/
- 22. Whats Next Thanks for listening dibia.victor@my.cityu.edu.hk