This shows worked 5 days, I change the battery due meantime but ... Now it is unusable since the forced update Cogito. They did not even try their update they have imposed and now the whole world groans that shows them no longer works. As a reminder. Watch updated to work with iPhone 6+ !!! Ineligible to continue to sell this material so that it does not work !!! I can not believe ... I told myself that Apple would come too late in this market with its connected watch. I think they have a good laugh seeing the work of others.