According to guides from Macworld and PCMag , you should decide on these specs before purchasing:
: The GPS-only model requires your iPhone to be nearby for calls and texts. The Cellular (GPS + LTE/5G) model allows you to leave your phone at home, which is ideal for runners. Case Size : : 40mm or 44mm. : 42mm or 46mm. : 49mm only. how to buy iwatch
The "goldilocks" choice for most people. It features the latest health sensors, including , ECG , and blood oxygen monitoring . It has a sleek design, 24-hour battery life, and starts around $399 . Apple Watch Ultra 3 49mm Titanium Case Loop Apple& more Go to product viewer dialog for this item. According to guides from Macworld and PCMag ,