So you want to listen to your Spotify music without your smartphone? Mighty has you covered. It is a smart wearable device that clips on to any piece of clothing and offers WiFi and Bluetooth connectivity. It is compatible with iOS and Android devices.
Mighty lets you store 48 hours of music in its memory. It is drop and sweat resistant. Simply sync the device with your smartphone, and you are set. Mighty is powered by Android. You can support this project on Kickstarter.