Reviewers Liked

  • Blood oxygen (SpO2) app
  • New colorful casings
  • Brighter always-on display
  • Tracks sleep with watchOS 7
  • Faster charging speeds
  • Solid ecosystem of third-party complications

Reviewers Didn't Like

  • Same 18-hour battery life
  • Sleep and SpO2 metrics aren't in-depth
  • Still no third-party watch faces
  • Still no Android phone support