The quick answer

• Calls: usually yes; check the IMEI, especially for unlocked models
• Software: stuck on Android 9, no security updates
• Most apps still install, but fewer each year
• OK as a basic or backup phone

Calls after the 3G shutdown

The S8 supports VoLTE, and US carrier versions are widely approved. Unlocked US models usually work too. International versions (model numbers ending in F or FD) are the ones most likely to be refused, so check before switching.

How to check yours

1. Find the IMEI: dial *#06# or look in Settings > About phone.
2. Enter it in your carrier's compatibility checker (every major carrier and most prepaid brands have one).
3. If it says the phone isn't supported, it usually means no VoLTE approval for that model. A different version of the same phone may still work.

The software limit: Android 9

The S8 stops at Android 9 and no longer gets security updates. Most apps still support it for now, but banking apps tend to drop old versions first.

Who it still works for

Someone who wants a big-screen Android for calls, texts, maps and video on a tight budget. Check the battery, which will be well worn by now.

If you're replacing it

A new Galaxy A17 or moto g 2026 costs far less than an old flagship did, gets years of updates, and several carriers give them away when you switch. Pair it with a low-cost plan such as Mint Mobile ($15 a month for 6GB on a 12-month term) or Visible ($25 for unlimited, taxes included).