Overview
Apple is testing a solid-state haptic button system for its rumored 20th-anniversary iPhone, according to Chinese leaker Instant Digital. The system would replace traditional mechanical buttons with capacitive-touch surfaces that provide haptic feedback, designed to blend seamlessly into the device's curved edges. The leaker claims the buttons have passed tests for use with gloves, wet hands, extreme temperatures, and while wearing a case.
What the System Does
The solid-state buttons would cover the Side button, volume buttons, Action button, and Camera Control button. An ultra-low-energy microprocessor keeps the buttons functional even when the phone is powered off or the battery is depleted. This is a key differentiator from earlier attempts: earlier solid-state button prototypes reportedly required the device to be powered on to register input.
Design Context
Apple is reportedly working on a display that curves down around all four edges of the device, aiming for a borderless visual experience with no cutouts and no bezels. Solid-state haptic buttons would eliminate physical openings in the chassis, supporting that design goal. The 20th-anniversary iPhone is expected in fall 2027.
Track Record and Caveats
Instant Digital has a generally good track record for Apple rumors, having accurately predicted the Yellow iPhone 14 launch in 2023 and the frosted back glass of the iPhone 15 and iPhone 15 Plus. However, Apple's adoption of solid-state buttons has been rumored before and failed to materialize. In 2022, reports suggested solid-state buttons for the iPhone 15 Pro under "Project Bongo," canceled at a late stage. Similar rumors for the iPhone 16 Pro were shelved indefinitely.
Other Rumored Features
In the same Weibo post, Instant Digital listed other features repeatedly rumored for the 2027 device: a dual-layer OLED panel, under-display Face ID, an under-display front-facing camera, a 6,000mAh battery, under-display audio (eliminating the earpiece slit), reverse wireless charging, and a next-generation Ceramic Shield. The leaker noted that it is unclear whether the last few items are based on new supply chain information or are more of a wish list.
Bottom Line
Solid-state haptic buttons for the 20th-anniversary iPhone remain a rumor with a history of false starts. The technical details—especially the low-power microprocessor enabling off-state functionality—are new and plausible, but Apple has not confirmed any of these features. Readers should treat this as speculative until official hardware appears.