Carry your other devices with you, knowing that charging your batteries is fine. The new Wireless Fast Charger is Qi compatible, so you can charge any compatible phone with this feature.
Actual charging speed may vary based on actual usage, charging conditions and other factors. Fast Wireless Charging feature is available only when one device is charging. If you are charging two devices at the same time, they will charge at their normal rate.
Samsung or other branded compatible with WPC Qi wireless charging feature such as Galaxy S9, S9 +, S8, S8 +, S8 Active, S7, S7 edge, S7 Active, S6, S6 edge, S6 Active, S6 edge +, Note9, Note8, Note FE and Note5 it is limited to smartphones.