Nokia Steel - What is the difference between the different Nokia® watches? Here is a quick summary of the differences: Related articles Which devices are compatible with the Nokia Steel? What can I track with my Nokia Steel? Tracking my sleep with my Nokia Steel Nokia Steel - I'm having issues with my sleep data. What should I do? Withings Activité / Pop - I'm having issues installing my device. What should I do? Didn't find what you need? Here's how to get in touch. Contact us Call us Customer Support ID (this number allows secure and easy account verification when communicating with our support team by phone): To view your Customer Support ID, please log in by clicking on 'login' at the top of the page. Hours of Operation: North America: Monday through Friday, 9 am - 10 pm Eastern Time (6 am - 7 pm Pacific Time).If you are unable to reach us by phone, please use the ‘Send us an email’ button to send an email instead.Disclaimer:Free call and assistance. Calls placed from outside of these locations may be subject to long distance fees. All phone calls may be monitored and/or recorded for quality purposes.