0–3 Months
- First real smile (not just reflexive)
- Following faces and voices with their eyes
- Lifting their head briefly during tummy time
Best captured with: short video clips — the smile itself is fleeting, and sound matters here (coos, first giggles).
4–6 Months
- Rolling over, in either direction
- Reaching for and grabbing objects
- Laughing out loud
Best captured with: video during floor/play time, since this is when rolling and laughing tend to happen.
7–12 Months
- Sitting without support
- Crawling
- First words like "mama" or "dada"
Best captured with: video with sound — first words are easy to miss in a photo.
12+ Months
- First independent steps
- Waving, pointing, simple gestures
- Stringing together first simple words
Best captured with: video, ideally started a beat before the moment — which is exactly what a rewind camera is built for.
