---
title: "Reviews — sonicare 6100 replacement heads - Flapen"
canonical_url: "https://flapen.com/research/us/health-household/sonicare-6100-replacement-heads/reviews"
last_updated: "2026-08-11T03:51:47.356Z"
locale: en
meta:
  description: "Niche score 55/100 · $2.9M/yr market. Brand-locked demand (top 5 brands take 95% of clicks) keeps it on the watch list. Data updated Jul 2026."
  "og:description": "Niche score 55/100 · $2.9M/yr market. Brand-locked demand (top 5 brands take 95% of clicks) keeps it on the watch list. Data updated Jul 2026."
  "og:title": "Reviews — sonicare 6100 replacement heads - Flapen"
---

# **sonicare 6100 replacement heads**

**Worth a look**

Shows a $2.9M/yr market, but brand-locked demand (top 5 brands take 95% of clicks) keeps it on the watch list.

Market size 96Growth 32Conversion 81Competition 48Returns 90Price range 27Avg price 72Brand share 12Review moat 22Quality gap 47

**Market size**

**Incredible****$2.9M**

$2.9M/yr · 315K searches

**Returns**

**Great****1.3%**

return rate — above 5% kills the launch gate

**Conversion**

**Great****8.5%**

search→purchase rate — share of searches ending in a sale

**Avg price**

**Good****$108.24**

avg listing price — sweet spot $15–$100

**Competition**

**Okay****56%**

top-5 click share — leaders hold, buyers still browse

**Quality gap**

**Okay****4.5★**

avg incumbent rating — lower means beatable quality

**Growth**

**Okay****+5.5%**

90-day search growth — must beat 0% to launch

**Price range**

**Okay****$10.05–$320.44**

cheapest to priciest tracked listing — scored on the share inside $15–$100

**Review moat**

**Bad****9,380.75**

avg incumbent reviews — the moat a new listing must climb

**Brand share**

**Bad****95%**

top-5 brand share — brand-locked demand

**Signals**[** High Price**](https://flapen.com/research/niches?market=us&signal=high_price "Avg price > $50")

## Reviews