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Apple Apple Watch Series 10 (46mm) vs Apple Apple Watch Series 9 (45mm)

Apple Apple Watch Series 10 (46mm) ($170) vs Apple Apple Watch Series 9 (45mm) ($124) — side-by-side specs, weight, pros and cons to help you pick the right smartwatch.

Apple Apple Watch Series 10 (46mm)
Apple
Apple Watch Series 10 (46mm)
$170
Thinnest Case
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Apple Apple Watch Series 9 (45mm)
Apple
Apple Watch Series 9 (45mm)
$124
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Spec-by-spec
SpecApple Apple Watch Series 10 (46mm)Apple Apple Watch Series 9 (45mm)
Price$170$124
Weight36.4g38.7g
ChipS10 SiPS9 SiP
Case46mm aluminium, GPS45mm aluminium, GPS
DisplayWide-angle OLED, always-on2000 nit always-on Retina
Water50m, WR5050m, WR50
Sizes42mm and 46mm41mm and 45mm
Weight36.4g (Apple published)38.7g (Apple published)
Pros & Cons

Apple Apple Watch Series 10 (46mm)

  • Thinner and lighter than the Series 9
  • Wide-angle OLED is easier to read off-axis
  • Fast charging
  • No blood oxygen on units sold during the import ban period
  • Incremental over a Series 9
  • Battery is still about a day

Apple Apple Watch Series 9 (45mm)

  • Double Tap works one-handed
  • 2000 nit display is genuinely bright outdoors
  • On-device Siri
  • Same case design as the Series 7 and 8
  • Battery still about 18 hours
  • Blood oxygen disabled on some US units
Apple Apple Watch Series 9 (45mm) is the better value at $124. If weight matters most, Apple Apple Watch Series 10 (46mm) carries lighter at 36.4g. Both are part of our curated smartwatch index — tap through to check current pricing.
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