The battery lasts a day. I always charge it overnight. But you can also charge it in the morning while showering, half an hour is enough.

Yes, that's right. But it is recharged and ready to go in no time at all.

I don't know exactly what they mean by that. But it always depends on how you use the watch. But it is also quickly recharged. Mine lasts 1 day and then some. These little things really do a lot and you need a battery for that. I'm glad I have them and am happy to recommend them to others 😊😊😊😊

The battery life isn't that great - I charge it every day.