Apple's been toying with Touch ID for the Apple Watch since at least 2020, when a patent application showed they were considering building it into the Digital Crown. Last year, leaked code suggested it might actually be happening.
Now a leaker with a solid track record says Apple has killed the idea. The reasons are straightforward: adding the sensor would make the watch more expensive to produce, and it would eat into battery life.
This matters because biometric authentication on wearables is still clunky. Right now you're either typing a passcode on a tiny screen or relying on your iPhone being nearby to unlock your watch. Touch ID on the crown would've been genuinely useful for quick authentication without pulling out your phone.
The battery life concern makes sense. The Apple Watch already needs charging every day or two depending on your model and usage. Adding another sensor that's constantly ready to read your fingerprint would make that worse.
For now, if you want biometric unlock on your wrist, you're stuck with the current system. Apple clearly decided the tradeoffs weren't worth it, at least not yet. Maybe future battery tech or more efficient sensors will change the calculus, but don't expect Touch ID on your watch anytime soon.
