Let's start with what's identical
Both filters take the same approach:
- A soft silicone cover that fits over the tub spout (which also protects your baby from bonks on hard metal).
- A replaceable cartridge inside, running the same three media: activated coconut carbon, calcium sulfite, and copper-zinc alloy.
- Designed to reduce chlorine, heavy metals, and other irritants in bath water.
- BPA-free materials.
Now the differences that cost you money
| WavvyBaby | Canopy | |
|---|---|---|
| Filter, one-time | $49 | $89 |
| Filter, with subscription | $39 | $79 |
| Refill cartridge | $15 (subscription) / $20 one-time | $25 (subscription) / ~$37 standalone |
| Refill cadence | Every 90 days | Every 90 days |
| First-year cost, nightly baths | ~$94 ($49 + 3 refills) | ~$164 ($89 + 3 refills) |
| Returns | 30 days, full refund, free return shipping | 60-day guarantee, refund minus handling; cartridges final sale |
| Where to buy | wavvybaby.com, Amazon | getcanopy.co, Target, Sephora, Amazon |
Prices checked as of August 2026. First-year math assumes a bath most nights, which is what a 90-bath cartridge covers in about three months.
Where Canopy wins
Two things:
- Retail presence. You can pick one up at Target or Sephora today, touch it first, and return it locally.
- The ecosystem. If you already run a Canopy showerhead or humidifier, keeping one brand and one account has convenience value.
One caution that shows up in owner feedback and Better Business Bureau complaints: fit. Some owners report the sleeve detaching or leaking on certain spout shapes.
Where Wavvy wins
The math. Same media stack, $40 less up front, and $10 less per refill. Diapers will happily absorb the difference.
Full-flow filtration. Every drop that reaches the tub passes through the cartridge; there's no bypass channel, and flow speed stays at your normal tap rate, so you're not choosing between a treated bath and a fast fill.
The verdict we'd give a friend
If you want to buy in person at Target, or you're already deep in Canopy's ecosystem, buy the Canopy.
For everyone else, WavvyBaby is the easy pick: full-flow filtration with no bypass and no slowdown, triple-media filtration that helps reduce chlorine, heavy metals, and VOCs, a snug silicone fit on most standard spouts, and a 4.5-star average from the parents who've tried it. Check what's in your local water first, then give your baby the softer bath they deserve.