SilentBot S1 vs typical quiet robot vacuums: Solid runtime for a whisper-quiet bot

The SilentBot S1 runs 90 minutes and takes 3 hours to recharge, which is decent for a quiet-focused bot. The trade-off for whisper-quiet operation is usually a smaller battery, but this one still covers a decent apartment on one charge. You trade some speed for silence, and the numbers work out fine.