Chainless / Bracelets with smart functions

While swimmimg , hot springs or playing in a water park.
How can we be imformed that we have a miss call or text
messages even without cellphones ?
Chainless is just made for sloving this problem ! With an
apprence of watches ,Chainless can be worn on user's
hand. Chainless reminds the users if they have a phone
call or text messages while doing those activities which
means they don't have to go to the locker to check whether
they have a miss call or any notifications.
Relax with no worries , just leave it to Chainless.