Apple Watch Series 10, Aluminum, 46mm, GPS, Sport Loop vs Apple Watch Series 10 Alum 42mm GPS Jet Black Black Sport Band - S/M

Both are Apple Watch Series 10 in aluminum, so the real decision is case size. The 46mm model has the larger screen and a slightly bigger battery, which suits people who read messages, follow maps or log long workouts. The 42mm is lighter and less obtrusive on smaller wrists and fits under tighter sleeves. Health sensors, watchOS and water resistance are the same on both.

• Choose the 46mm Series 10 if you want the biggest screen Apple makes on a standard watch and have a wrist that carries it comfortably.
• Choose the 42mm Series 10 if you have a smaller wrist or prefer a lighter watch that stays out of the way.