Phones & Gadgets
Apple Watch Ultra upgrade: Ultra 4 adds sleep apnea and BP alerts
Original Ultra owners miss out on sleep apnea and hypertension alerts and watchOS 27. Here is what the $799 Ultra 4 gives back, and who should wait.
Original Ultra owners miss out on sleep apnea and hypertension alerts and watchOS 27. Here is what the $799 Ultra 4 gives back, and who should wait.
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