Digital keyboards mimic acoustic pianos electronically—press keys, hear realistic sounds through speakers. Unlike guitars, no tuning needed; power on and play. Types include portable (61 keys, super light), home (88 weighted keys, console-like), and stage (pro but overkill).
Best for beginners: portable 88-key with weighted action (keys feel heavy like real piano). They balance realism and ease. Avoid toy-like 49-key models; they're fun but limit growth.
Realistic expectations: In weeks, play simple songs like 'Twinkle Twinkle'. Features like lesson modes slow tempo, light up keys. 'Beginner-friendly' means minimal buttons, auto-chord for instant music, good manual/videos.
Marketing traps: '300 sounds' sounds great but beginners use 10. Focus on key action quality—'hammer action' simulates piano resistance. Test in-store if possible, or watch Amazon unboxings.
Evaluate by playing demos: smooth response? Clear sound? Easy power-up? Growth room: USB for apps means future-proof.