Gadget Otter

Smartwatches

Apple Watch Ultra 4

Divers and long-day iPhone users

$799Checked November 1, 2026

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Illustration of the Apple Watch Ultra 4 smartwatch

My short take

The 49mm titanium Ultra 4 is rated for 50 hours, 84 in Low Power Mode, and 100 m of water. It weighs 63 g, about double the SE 3's 44mm case at 32.9 g. Dual-frequency GPS is the main reason to pay $400 more than the Series 12.

The specs

Battery life
50 hours
Case size
49 mm
Weight
63 g
GPS
Precision dual-frequency GPS
OS
watchOS
Water rating
100 m, ISO 22810; dive rated to 40 m

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