Brandwave

Waterdrop vs Zen Water Systems:Which is more popular?

In September 2026, Waterdrop had more branded searches than Zen Water Systems among water filter brands in Australia. Waterdrop had about 880 branded searches, while Zen Water Systems had 590. Waterdrop made up 3.1% of all water filter brand searches we track, and Zen Water Systems accounted for 2.1%. When we asked ChatGPT and Google AI Overviews about water filter brands, Waterdrop appeared in four of the five answers and Zen Water Systems in none.

Among water filter brands in Australia in September 2026

Who do people search for more?

Waterdrop, about 49% more searches than Zen Water Systems

Waterdrop 880 searchesZen Water Systems 590 searches

Who does AI mention more?

Waterdrop, mentioned in 4 of 5 answers, Zen Water Systems in 0

Waterdrop in 4 of 5Zen Water Systems in 0 of 5

Who does AI recommend more?

Waterdrop, the only one of the two named

Waterdrop first in 3Zen Water Systems never named

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Top water filter brands in ChatGPT and Google AI Overviews

In three ChatGPT questions and two Google AI Overviews, Waterdrop was mentioned in four out of five: in all three ChatGPT answers and in one of the two Google AI Overviews. Zen Water Systems did not appear in any of the five answers.

Most recommended by AI

Brands get a higher ranking if they are mentioned earlier in the answers.

  1. Puretec1st
  2. Brita2nd
  3. Waterdrop3rd
  4. Doulton–
  5. Zip Water–
  6. Billi–
  7. Zen Water Systems–

Mentioned by AI

Each dot is one answer, filled in when that answer mentions the brand.

  • Brita4 of 5Named in 2 of 3 ChatGPT answersNamed in 2 of 2 Google answers
  • Waterdrop4 of 5Named in 3 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • Puretec2 of 5Named in 2 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • Doulton0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • Zip Water0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • Billi0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • Zen Water Systems0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers

See every answer about water filter brands

5 answers

  • Asked ChatGPT

    “Which water filter should I buy for my home in Australia?”

    1. 1Brita
    2. 2Waterdrop

  • Asked ChatGPT

    “What are the best water filter brands in Australia?”

    1. 1Puretec
    2. 2Brita
    3. 3Waterdrop

  • Asked ChatGPT

    “What's the best filtered water tap for a kitchen?”

    1. 1Puretec
    2. 2Waterdrop

  • Searched Google, AI Overview

    “water filter”

    1. 1Brita
    2. 2Waterdrop

  • Searched Google, AI Overview

    “water filter jug”

    1. 1Brita

Not named in any answer:

Brands are shown in the order each answer named them. The survey took place in Australia on October 26, 2026.

Is Waterdrop or Zen Water Systems more popular in search?

This chart shows how often people search Google for Waterdrop and Zen Water Systems by name. Each line represents a brand's share of searches for all seven water filter brands we track, month by month, from searches in Australia.

Waterdrop and Zen Water Systems among water filter brands in Australia, by month

Share of searches by month for Waterdrop, Zen Water Systems. The figures are in the table below the chart.

View monthly share of searches table
MonthDoultonZip WaterBritaPuretecBilliWaterdropZen Water Systems
Oct 202527.2%22.9%18.2%14.8%12.1%2.4%2.4%
Nov 202532.5%26.4%14.5%11.8%9.7%2.4%2.7%
Dec 202542.9%17.4%15.7%10.4%8.4%2.6%2.6%
Jan 202631%18.8%16.9%16.9%11.3%2.8%2.3%
Feb 202624.8%22.6%16.5%16.5%13.5%3.8%2.2%
Mar 202628%23.5%15.2%15.2%12.5%3%2.5%
Apr 202628.4%22.1%15.4%15.4%12.6%3.5%2.5%
May 202628.7%22.3%15.6%15.6%12.7%3.1%2.1%
Jun 202624.7%23.5%16.4%16.4%13.4%3.3%2.2%
Jul 202632.9%21%14.6%14.6%12%2.9%2%
Aug 202636.9%20.8%13.4%13.4%11%2.7%1.8%
Sep 202628.7%22.3%15.6%15.6%12.7%3.1%2.1%

How has the Waterdrop and Zen Water Systems comparison changed over the last 12 months?

3 findings
  • The lead changed hands once in the 12 months ending September 2026: Waterdrop took it in January 2026.
  • Across the 12 months ending September 2026, Waterdrop’s share of searches among water filter brands in Australia moved from 2.4% to 3.1%, and its estimated monthly branded searches moved from 720 to 880.
  • Across the 12 months ending September 2026, Zen Water Systems’ share of searches among water filter brands in Australia moved from 2.4% to 2.1%, and its estimated monthly branded searches moved from 720 to 590.

How did search popularity change for Australia water filter brands in September 2026?

2 changes

  1. Estimated monthly branded searches for Waterdrop in Australia rose 22.2% over 12 measured months, from 720 to 880 in September 2026.

  2. Estimated monthly branded searches for Zen Water Systems in Australia fell 18.1% over 12 measured months, from 720 to 590 in September 2026.

How are branded searches counted?

2 search terms

Brandwave collects information about searches that people make online using Waterdrop’s and Zen Water Systems’ names. When viewed over time, estimated search volumes for these branded terms can be used to understand whether interest in the brands is growing, holding steady, or fading.

Waterdrop

1 branded search term

  • waterdrop filter

Zen Water Systems

1 branded search term

  • zen water

How the Brand Demand Index is measured

Other head-to-heads among water filter brands

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