What are the main differences between a digital piano and an acoustic piano?

The main differences between a digital piano and an acoustic piano are the sound production mechanism and the overall feel of playing. Digital pianos use electronic sound samples and speakers to produce sound, while acoustic pianos have strings and hammers that create sound through physical vibrations. Additionally, digital pianos are usually lighter, more portable, and have features like volume control and headphone jacks, while acoustic pianos are heavier, require tuning, and have a more traditional feel when playing.