Apple Watch Series 4 Slightly Larger Than Series 3

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Per some sleuthing by Mikah Sargent,1 here are the new case sizes:

  • Series 3 38mm — Height: 38.6mm / Width: 33.3mm / Depth: 11.4mm
  • Series 4 40mm — Height: 40mm / Width: 34mm / Depth: 10.7mm
  • Series 3 42mm — Height: 42.5mm / Width: 36.4mm / Depth: 11.4mm
  • Series 4 44mm — Height: 44mm / Width: 38mm / Depth: 10.7mm

Apple says all old bands are compatible across the new generation of watches, which is great.

  1. He had to compare Apple’s webpages for the bands themselves, as the “Compare Apple Watch Models” page doesn’t list dimensions for some reason. ↩