Dockstream Fountain

Key facts

• Tracks drinking sessions in the app — useful early-warning health data
• No subscription, but filters are proprietary PETLIBRO refills
• Filters roughly double the device cost over three years
• Pumps and filters water fine without Wi-Fi

Our verdict

The Dockstream Fountain stickers at $70, but the receipt above is the real price: $250 over three years, or about $5 a month in running costs after the box arrives. There is no subscription, and there never has been — what you pay at checkout plus consumables is the whole story.

Watch the consumables line: filter replacements. Because they're proprietary, you can't shop around — that's a subscription wearing a costume, and we score it accordingly. The core function keeps working if the app, cloud, or your Wi-Fi goes down — a reliability point we weight heavily.

Who it's for: app-tracked hydration. Cross-shop the rivals in its category on the right, or open the full true-cost breakdown for the year-1 vs 3-year view.