Full side-by-side
AOX Premium Mfr claim
·
Doulton Ceramic Filter Mfr claim
| Spec | AOX Premium | Doulton Ceramic Filter | Winner |
|---|---|---|---|
| Origin | Singapore | UK | — |
| Distribution | Direct retail · e-store + corporate rental | Retail · specialty water shops | — |
| Category | Antioxidant water dispenser | Ceramic under-sink filter (NOT a true ionizer) | — |
| Plates | 7 | 0 | AOX Premium |
| pH (max alkaline) | 10.2 | 7.4 | AOX Premium |
| ORP | -620 mV | -40 mV | AOX Premium |
| Dissolved H₂ | 0.95 ppm | 0.01 ppm | AOX Premium |
| Flow rate | 2.4 L/min | 1.8 L/min | AOX Premium |
| Warranty | 2 yr | 1 yr | AOX Premium |
| Filter cost (each) | S$ 180 | S$ 95 | Doulton Ceramic Filter |
| Sticker price | S$ 1,799 | S$ 320 | Doulton Ceramic Filter |
| 5-year total | S$ 3,599 | S$ 1,270 | Doulton Ceramic Filter |
| Our rating | — | — | — |
How we sourced these numbers: All specs are taken directly from each manufacturer's published product page (links at the bottom). We have NOT independently lab-tested these brands — only Prime Water (our own sister brand) is verifiable through primewater.com.sg. Independent lab testing is rolling out through 2026.
Verdict
Cost over 5 years: Doulton Ceramic Filter saves S$ 2,329 over 5 years.
Lab performance: AOX Premium produces 0.95 ppm dissolved H₂; Doulton Ceramic Filter produces 0.01 ppm. The AOX Premium leads on hydrogen output.
Warranty: AOX Premium carries a 2-year warranty; Doulton Ceramic Filter carries 1. AOX Premium wins on coverage.
Where to buy + showroom info
AOX Premium
Direct retail · e-store + corporate rental
Phone: +65 6456 4321 · WhatsApp +65 9271 7505
Lineup: Hot & Cold · Non-Electricity · Compac · PURE · TT Tap (award-winner) · AOX Traveller (portable)
Visit AOX Singapore →Doulton Ceramic Filter
Retail · specialty water shops
Lineup: HIP3 · HCS · HCP · countertop and under-sink ceramic systems
Visit Doulton →No affiliate links · Waterionizer.sg earns zero from either purchase.