Related Documents

Download Case Study: Custom software development for wearable device

149.4 KB

Building The Next Generation Wearable Technology




The customer came to us with a strong vision of an absolutely new and unique suite of new generation wearable devices.


First Line participated in a very exciting project for an international wearable tech startup led by some of the industry’s most experienced technologists and visionaries.

The Challenge

wearable electronic device alone, no matter how cool and cutting edge, is not sufficient for success on its own. It needs to be brought to market packaged with mobile apps, web applications, and the cloud

The cloud backend is crucial: since on-device computations are costly from the power consumption standpoint, all the processing needs to take place on the backend. 

The connected wearable device continuously streams data from its sensors (accelerometers, heart rate sensors, light sensors, etc.) either to the mobile app, which transmits it further into the cloud for processing via Bluetooth Low Energy or to the cloud backend directly via 3G/4G or Wi-Fi. 

It is there that the data is analyzed, visualized, and presented to the users in the most compelling way, incentivizing them to change or improve their lives, driven by their new “quantified self” awareness. 

Integration with social media is conducive to the creation of communities of like-minded individuals and helps build support systems for users with similar objectives. Through gamification, users are motivated to share their data, compare their progress, compete, and meet their goals.

First Line’s Solution

The customer came to us with a strong vision of an absolutely new and unique suite of new generation wearable technology. At the start of the engagement, First Line’s analysts and consultants worked closely with the client’s globally distributed team to translate the product vision into a manageable, comprehensive product backlog of specific features and functionality that could be delivered on the available budget and using feasible technologies. 

By estimating the numerous features envisioned by the client’s tech and design teams, we made it possible to start putting concrete dollar numbers on the “wishlist”, prioritize the feature list, and accelerate the process of getting to an MVP (minimum viable product).

The project spans multiple technologies: 

  • hardware, including technical design and power consumption; 
  • three mobile platforms; 
  • the web application; 
  • on-device software; 
  • backend; 

and numerous external integrations with other devices and applications. 

First Line assembled a cross-functional team that included 

  1. Experts in hardware; 
  2. Experts in MEMS (microelectromechanical systems, e.g. accelerometers);
  3. Experts in embedded software;
  4. Web development experts;
  5. Big data experts;
  6. Mobile development experts;
  7. and UX designers.

We also came up with the work process to gradually add features and enhance the product incrementally over time, across all of its components, in sync.

When it comes to the development mobile applications, their key feature is obviously the user interface. Our mobile application designers worked closely with the client’s team to translate their vision into actual screens that are easy to read, move across, and use; in other words, we helped translate the existing design assets into a workable, compelling, and intuitive mobile UI.

One of the main challenges has to do with handling a very high volume of user data (such as biotelemetry) streaming from the device to the cloud backend. Built with millions of users in mind, the system needs to be able to capture and store many thousands of terabytes as it acquires new users over time. 

First Line’s experts designed a lightning-fast solution driven by in-memory Redis for operational data capture, and CouchDB for persistent storage. This open-source stack is capable of extremely high performance even when run on inexpensive hardware, and is easily scaled. 

The server architecture includes regional data centers around the globe. Based on the user’s geographic location, the device data is streamed to the closest available physical server for optimal performance.

So, we are part of bringing a new product to life, a set of innovative wearable devices coupled with engaging mobile apps and a compelling web application with rich data visualization and advanced analytics. First Line is acting as a full-service technology partner, software and application development company, helping the customer get from a fascinating, innovative vision to a tangible, functioning product in hand.

Team size: 25
Total effort: 400 person-months

You can download this case study on custom software engineering and mobile application development by clicking the PDF icon on the left-hand side above.

Download Case Study: Custom software development for wearable device

Download Case Study

Client References

I want to express my gratitude for all of your team’s hard work, support and extra help. We are very grateful for all that you have done for us.

Senior Project Manager, a U.S. specialty digital design and web development agency

Your quality of work is exceptional, and your flexible approach has allowed us to build and deploy a large amount of complex functionality in a very short space of time. Kudos to everyone for their professionalism and for delivering results that exceeded our expectations.

CEO, leading social media analytics provider

We have never had a better release that we can think of. And that is all because of your hard and dedicated work. So here is a big THANK YOU to everyone from all of us!

Editor, leading Scandinavian newspaper

For a software vendor like ourselves, picking the right development partner is crucial. First Line’s technical expertise and solid project management, coupled with their proficiency in Agile methodologies, have made them an integral part of our product development group.

VP Product Development, leading enterprise software vendor

Our First Line Team has been doing a great job. All of the guys check in great code, and they have a forward thinking mindset, not a feature-to-feature approach. They are also very open in terms of sharing knowledge, which is critical to running productive distributed teams.

Application Development Director, global marketing company

We've all learned a lot from you, and it is great working with you.

Application Development Director, global marketing company

The First Line team has an excellent process and we can learn from your team and improve.

Product Owner, Strategic Software Consultancy

I would like to thank the First Line development team for their dedication and high level of quality in their work. Despite being thousands of miles apart, we have been able to work quickly, effectively, and intelligently. Your team has been a major part of why we have been successful thus far.

VP Engineering, e-learning startup

First Line is a great technology partner capable of delivering complex, ‘industrial grade’ projects. They have demonstrated strong technical competence and solid understanding of the media and publishing domain. We have also been very impressed by the management team's attention to our needs and commitment to our success.

CEO, leading European digital media company

Your effort is the #1 reason that this project is going so well. I've worked with a lot of teams over the years and there are very few teams that I trust and respect. When you are given a task or feature, I never have to worry whether or not it will be accomplished on time and I never worry about the quality - you always deliver.

Architect, Strategic Software Consultancy

The team we put together in the last half of this year is one of the most productive, skilled and enjoyable I’ve ever worked on. It’s great to see the product brought to life, and I’m proud to work with all you folks.

Senior Architect, Fortune 100 company

The First Line Software team is professional, results driven, and proactive. I know that when we provide requirements for new functionality, they will not only deliver on the scope of what has been asked but will look beyond and give insight into how we can make our product even better. It has been a privilege to work with First Line Software, and I look forward to continuing our partnership in future.

VP, global marketing company
related projects

Creating a website for a manufacturer of bathroom accessories

A client, their challenge, and our solution…

Show details

Immunization Repository for a Large Healthcare Delivery System

Our client is one of the largest not-for-profit hospital and physician networks in the United States with over 15,000 providers and over 2 million patients under care.

Show details

Development and implementation of a risk management system for a leading airline company

The system for this airline was designed to automate the processes associated with assessing the compounded impact of financial risks on the company's financial results, modeling and maintenance of payment schedules for operational and financial leasing.

Show details

Contact Us



Cambridge MA

1 Broadway,
14th Floor,
Cambridge MA 02142 +1 877-737-7178


The Hague

Louis Couperusplein 2,
4th floor 2514HP,
The Hague +31 70 512 1899


Sydney | Brisbane

12 Creek Street,
Brisbane QLD 4000 +61 2 8111 5900
United Kingdom

United Kingdom


Cowley House,
12 Black Jack Street Cirencester
Gloucestershire, GL7 2AA +44 7771 787840
Czech Republic

Czech Republic


Na Hřebenech
II 1718/8,
140 00 Praha 4 +420 721 537 689
Czech Republic

Czech Republic


Centrum, Šumavská,
Šumavská 416/15,
602 00 Brno +420 721 537 689

Send us a note

We'll do our best to answer within one hour