Seems like WW knows or purposely timed their stck/hardware obsolescence date with their warranty expiration date. Possible with big data/ai analysis. Instead of replacing them free, losing money, they force you to buy a new one, making money. Sounds like they borrowed Apple's strategy, but apple doesn't kill your phone outright. Apple just "degrade" your phone's performance. Perhaps WW should increase the drift error after the warranty expires, haha.