Potential redesign of the Apple Watch

More than ten years after the launch of the Apple Watch in 2015, Apple is reportedly considering abandoning the backward compatibility of its bands. According to the Chinese leaker Instant Digital, reported by MacRumors, the major redesign expected in 2027 would introduce an entirely new attachment system. A break that would leave behind the collections of bands patiently accumulated over a decade by millions of users.

An attachment system unchanged since 2015

Since the very first Apple Watch, the mechanism has not budged an inch: a rail placed on either side of the case, onto which the bands clip. This standard has crossed all the evolutions of the range, from Series 1 to Series 10, including the Apple Watch SE and the Apple Watch Ultra. Only the width of the case requires a suitable band, but the attachment principle has remained strictly identical.

This universal compatibility has fueled a thriving accessory market, both official and third-party, and allowed owners to keep their bands from one generation to the next. A strong argument when renewing one's smartwatch.

A 2027 redesign driven by battery life

According to Instant Digital, the new attachment system would serve a very specific purpose: to free up internal space to accommodate a larger battery. The issue is far from trivial, as base models still struggle to exceed 24 hours of battery life. Rethinking the side attachment would allow for usable volume for the cell.

MacRumors emphasizes that this change fits into a well-established cycle. The Apple Watch has gone through four design generations: the first from Series 1 to Series 3, the second from Series 4 to Series 6, the third from Series 7 to Series 9, and the fourth since Series 10 in 2024. This iteration could end with the Series 12 expected next September, paving the way for an unprecedented format with Series 13 in 2027.

Advice for buyers: hold off on bands

Instant Digital issues a blunt warning to those planning to buy an Apple Watch in 2027: avoid investing in additional bands immediately. A completely redesigned case could render all models compatible with the current rail obsolete overnight.

For the accessory market, the shift would be painful. Third-party manufacturers, who have been using the same standard since 2015, would need to completely overhaul their tooling. Owners with multiple bands — leather, sport, or Milanese — will have to choose between keeping their old watch and starting from scratch with Series 13. On the second-hand side, the value of current Apple Watch bands could evolve in contrasting ways: collapse for new models, possible revaluation for limited editions compatible with generations still in circulation.

Nothing is official at this time. Instant Digital remains a leaker, and Apple will not communicate before the September 2026 keynote on Series 12, let alone on what will come next.

Frequently asked questions

Why would Apple change its attachment system after more than ten years?

According to Instant Digital's information, the main motivation would be technical: a new attachment mechanism would free up space inside the case, allowing for a larger battery to be integrated. Battery life has been the Achilles' heel of the Apple Watch since its inception, and Apple is looking to address it structurally rather than through simple software optimizations.

Will my current bands really be unusable on Series 13?

If the redesign of the attachment system is confirmed, bands designed for the current rail will indeed no longer be compatible with the new cases. Your bands will continue to work on your old watches, but you will have to repurchase everything if you switch to Series 13 or later models. No official confirmation exists at this stage.

When could this change concretely occur?

According to rumors, the Series 12 presented in September 2026 will retain the current design. It is the Series 13, expected in fall 2027, that will introduce the new format. So there are just over two years left before this change potentially becomes a reality.

Should I stop buying Apple Watch bands right now?

Not necessarily. If you own a recent Apple Watch and do not plan to replace it before 2027, investing in a band is still quite reasonable. However, if you plan to buy a Series 13 as soon as it is released, it is better to wait to know the new standard before spending on accessories that could become incompatible.

Will third-party manufacturers be able to adapt quickly?

History shows that the Apple accessory ecosystem generally adapts quickly to new standards, as was the case during the transition to the Lightning connector and then to USB-C. However, the transition takes time, and the first months following the launch of Series 13 could see a limited third-party offering, before the market reorganizes around the new system.