For most action camera uses, stabilization is important. In most action cameras, electronic image stabilization (EIS) is used. Very rarely, you might see a camera with optical image stabilization (OIS), but this is rare. Usually, it's electronic, but it's come a long way in terms of software and algorithms compared to even just a few short years ago. Of course, some cameras now feature mechanical image stabilisation through the use of gimbals, beating out EIS in terms of quality but at the cost of durability.