Which is the better buy? Side-by-side on rating, price, strengths, and watch-outs — with the published ratings we averaged to get there.
Waterdrop G3P800 Tankless comes out ahead by a narrow margin (4.5 vs 4.7). The gap is mostly about users with limited under-sink space who want on-demand RO — read the strengths below before deciding.
The D6 is the value tankless pick — Waterdrop's compact tankless RO at $349. Best for buyers wanting tankless without G3P800 premium.
The G3P800 is the tankless RO pick — Waterdrop's on-demand RO with smart faucet at premium price.
Cheaper tankless. Lower GPD than G3P800. Compact.
Tankless. Highest GPD. Premium price.
| Spec | Waterdrop D6 Tankless | Waterdrop G3P800 Tankless |
|---|---|---|
| Type | Tankless RO | — |
| GPD | 600 | 800 |
| Faucet | TDS display | Smart with TDS |
| Power | Electrical required | Electrical required |
| Stages | — | 7 tankless |