Apple Watch Ultra 2 vs. Ultra 4 Buyer's Guide: Should You Upgrade?

MacRumors
By Hartley CharltonSep 24, 2026, 11:55 am125 pts
The Apple Watch Ultra 4 arrives three years after the Ultra 2. Across those two generations, Apple added satellite connectivity, a larger display, new health sensors, and longer battery life. Are those changes enough to justify replacing an Ultra 2 or paying more for the newest model? Both watches retain a 49mm…

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