https://wccftech.com/apple-watch-series-7-design-a-unique-challenge/

Though we were not greeted by a flat-edge design on the Apple Watch Series 7, the latest iteration features the biggest display ever. However, achieving this feat came with its own set of challenges, according to Apple executives in the latest interview. Let us discuss what else they talked about and how they managed to incorporate an even larger screen on the wearable.

Speaking with The Independent, Apple’s Vice President of product marketing, Stan Ng said that increasing the wearable’s display size while keeping the casing’s form factor relatively small was a challenge. To overcome this, MacRumors reports that Apple had to completely re-engineer the display, the front crystal, and the internal enclosure. If you did not notice, the Apple Watch Series 7 also sports borders that measure 1.7mm, while on the Apple Watch Series 6, those borders measured 3mm.