Apple is exploring the integration of Touch ID fingerprint scanning technology into its Apple Watch lineup, with the feature potentially arriving as early as next year, according to internal developer code discoveries.

The development efforts target implementation starting with 2026 Apple Watch models, likely beginning with the Apple Watch Ultra 4.

Internal code references “AppleMesa,” Apple’s longstanding codename for Touch ID technology, suggesting the company is actively prototyping fingerprint authentication for wearable devices.

Since the referenced code remains for internal development use only, the Touch ID feature is likely still in early prototype stages and will not appear on any Apple Watch models releasing in 2025.

The integration of fingerprint scanning into a smartwatch presents unique design challenges that Apple appears to be addressing through established smartphone solutions.

Based on existing Touch ID implementations, the sensor would likely be embedded either into a physical button or integrated beneath the display.

Previous rumours have suggested Apple might implement an optical in-display fingerprint sensor for Apple Watch, similar to technologies used in Android smartphones.

Alternatively, the company could integrate Touch ID into the side button, following the approach used on recent iPad models and some iPhone iterations.

The Touch ID development aligns with recent rumours suggesting Apple plans a significant Apple Watch redesign for 2026 models.

The comprehensive refresh may include not only fingerprint authentication but also updated processors and other hardware improvements across the watch lineup.

The timing coincides with Apple’s broader efforts to enhance security and user convenience across its device ecosystem.

Touch ID on Apple Watch could provide faster authentication for payments, app access, and device unlocking without requiring passcode entry or iPhone proximity.

Current Apple Watch models rely on passcode authentication and automatic unlocking when paired with authenticated iPhones.

Adding fingerprint scanning would provide an additional security layer while potentially improving user experience for standalone watch interactions.

The feature development represents Apple’s continued investment in biometric authentication technologies, building on Face ID for iPhones and Touch ID implementations across Mac, iPad, and previous iPhone generations.