1 feature phone’s battery is a work 2 days and smart phone’s battery is a work 1 day.
2 feature phones use in only calling and smart phones use in calling, video calling, whatsapp and other social media.
3 feature phone’s have not any internet connection and smart phone’s have 2g/3g/4g internet connection.
4 feature phones have keypad and smart phones have big touch screen.
5 feature phones have one sim card slot and smart phones have two sim cards slot.