Right now, Macworld readers can take advantage of more than 60% off the Shyn Sonic Toothbrush and a pack of 8 Whitening Brush Heads. Shyn Sonic Toothbrush with 8 Whitening Brush Heads – $64.99 ...

Review: Brightline Sonic Rechargeable Toothbrush. ... Replacement brush heads are cheap, though, costing $10 for a pack of four, which compares very well to official Sonicare heads ...