- Does the Series 4 work with Android phones?
- No. It pairs only with an iPhone, and setup requires the Watch app on iOS.
- What is the difference between GPS and GPS + Cellular?
- The Cellular model has its own connection for calls, texts and streaming music without your phone nearby. That needs a carrier plan, and the GPS-only model relies on your phone for connectivity.
- Does it have an always-on display?
- No. The screen lights when you raise your wrist and goes dark when your arm drops. Always-on arrived with the Series 5.
- Can it take an ECG?
- Yes. The Series 4 was the first Apple Watch with the ECG app, available in supported regions, plus irregular-rhythm notifications.
- How long does the battery last?
- Apple rates it at up to 18 hours of mixed use. Heavy workouts or long cellular calls shorten that, so most owners charge it daily.
- Is it still a good buy over a newer Apple Watch?
- It covers the basics well, but newer models add an always-on display, blood oxygen sensing and longer software support. Choose the Series 4 if those extras matter less to you.
- Where is the Apple Watch Series 4 40MM Gold (GPS + Cellular) cheapest?
- At HOLDALL HOUSE, for $52.82, as of our latest check.