---
title: "Trend — s21 ultra screen protector - Flapen"
canonical_url: "https://flapen.com/research/us/cell-phones-accessories/s21-ultra-screen-protector/trend"
last_updated: "2026-08-09T22:20:58.735Z"
locale: en
meta:
  description: "Niche score 56/100 · $338K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
  "og:description": "Niche score 56/100 · $338K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
  "og:title": "Trend — s21 ultra screen protector - Flapen"
---

# **s21 ultra screen protector**

**Worth a look**

Shows searches that convert (12.5% search→purchase), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Market size 53Growth 22Conversion 95Competition 37Returns 74Price range 58Avg price 42Brand share 70Review moat 22Quality gap 95

**Conversion**

**Incredible****12.5%**

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

**Quality gap**

**Incredible****4.0★**

avg incumbent rating — lower means beatable quality

**Returns**

**Good****2.0%**

return rate — above 5% kills the launch gate

**Brand share**

**Good****63%**

top-5 brand share — brands hold most of the demand

**Price range**

**Good****$7.12–$25.92**

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

**Market size**

**Good****$338K**

$338K/yr · 245K searches

**Avg price**

**Okay****$11.02**

avg listing price — sweet spot $15–$100

**Competition**

**Okay****63%**

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

**Growth**

**Bad****-7.0%**

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

**Review moat**

**Bad****8,890.05**

avg incumbent reviews — the moat a new listing must climb

**Signals**[** Quality Gap**](https://flapen.com/research/niches?market=us&signal=quality_gap "Avg rating < 4.0")

## Trend