How popular isRo in search?
In September 2026, there were an estimated 22.2K branded searches for Ro worldwide which held steady over the last 12 months. Ro holds 10.7% estimated Share of Search among water purifier brands worldwide and is ranked 2nd of 4 competitors for search popularity. These are worldwide searches for English-language branded terms.
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Which water purifier brands compete with Ro?
Share of Search by month for Coway, Ro, LG. The figures are in the table below the chart.
View monthly share of search table
| Month | Coway | Ro | LG | Kent |
|---|---|---|---|---|
| Oct 2025 | 78.3% | 10.5% | 10.5% | 0.62% |
| Nov 2025 | 78.1% | 8.6% | 12.8% | 0.47% |
| Dec 2025 | 76.2% | 10.2% | 12.5% | 1.1% |
| Jan 2026 | 76.6% | 12.6% | 10.3% | 0.46% |
| Feb 2026 | 74.8% | 12.3% | 12.3% | 0.55% |
| Mar 2026 | 76.4% | 12.6% | 10.3% | 0.74% |
| Apr 2026 | 76.3% | 12.5% | 10.3% | 0.88% |
| May 2026 | 78.2% | 10.5% | 10.5% | 0.76% |
| Jun 2026 | 77.9% | 10.5% | 10.5% | 1.1% |
| Jul 2026 | 77.9% | 10.5% | 10.5% | 1.1% |
| Aug 2026 | 75.4% | 12.4% | 10.2% | 2% |
| Sep 2026 | 79.6% | 10.7% | 8.7% | 0.92% |
| Rank | Brand | Share of Search | Estimated monthly branded searches | vs prior month | Share change |
|---|---|---|---|---|---|
| 1, held 1st | 79.6% | 165K | 0% | +4.2 points | |
| 2, held 2nd | 10.7% | 22.2K | -18.1% | -1.7 points | |
| 3, held 3rd | 8.7% | 18.1K | -18.5% | -1.4 points | |
| 4, held 4th | 0.92% | 1.9K | -56.8% | -1.1 points |
1.
Coway79.6%
Held 1st. 165K estimated branded searches, 0% vs prior month. Share +4.2 points.
2.
Ro10.7%
Held 2nd. 22.2K estimated branded searches, -18.1% vs prior month. Share -1.7 points.
3.
LG8.7%
Held 3rd. 18.1K estimated branded searches, -18.5% vs prior month. Share -1.4 points.
4.
Kent0.92%
Held 4th. 1.9K estimated branded searches, -56.8% vs prior month. Share -1.1 points.
Compare search popularity between Ro and its closest rivals
Every comparison with Ro
7 comparisons
How has branded search demand for Ro changed worldwide over the last 12 months?
3 findings
- Across the 12 months ending September 2026, estimated monthly branded searches for Ro worldwide held steady at 22.2K.
- Across the 12 months ending September 2026, Ro’s estimated Share of Search among water purifier brands worldwide peaked at 12.6% in January 2026 and was lowest at 8.6% in November 2025.
- Across the 12 months ending September 2026, Ro rose from 3rd to 2nd among water purifier brands worldwide.
How did search popularity change for water purifier brands worldwide in September 2026?
4 changes

In September 2026, Coway gained estimated Share of Search among water purifier brands worldwide, from 75.4% to 79.6%.

In September 2026, Ro lost estimated Share of Search among water purifier brands worldwide, from 12.4% to 10.7%.

In September 2026, LG lost estimated Share of Search among water purifier brands worldwide, from 10.2% to 8.7%.

In September 2026, Kent lost estimated Share of Search among water purifier brands worldwide, from 2% to 0.92%.
Where does Ro compete?
| Competitor set | Rank | Share of Search | Ranking |
|---|---|---|---|
| Online prescription services | 4th of 5 | 1.3% | Show ranking |
| Water purifier brands | 2nd of 4 | 10.7% | Shown above |
How is Ro measured?
Brandwave collects information about searches that people make online using Ro’s name. When viewed over time, estimated search volumes for this branded term can be used to understand whether interest in the brand is growing, holding steady, or fading.
1 branded search term
- ro health
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Is Ro your brand?
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