One of these is a product [classic Casio watch]. The other is a relationship [smart watch that needs charging every night and monitors health].
Even simple rechargeable products are like this. You have to keep track of their charge and charge them or have them die in use. And if you aren't using them for a while, you still have to check to be sure they stay charged or the battery will be damaged by over-discharge. And there is a small chance one of them will spontaneously combust, so you have to consider storing them away from valuables.
> One of these is a product [classic Casio watch]. The other is a relationship [smart watch that needs charging every night and monitors health].
Even simple rechargeable products are like this. You have to keep track of their charge and charge them or have them die in use. And if you aren't using them for a while, you still have to check to be sure they stay charged or the battery will be damaged by over-discharge. And there is a small chance one of them will spontaneously combust, so you have to consider storing them away from valuables.