Full side-by-side

AOX Premium Mfr claim · WaterSource GEM 9000 Mfr claim
SpecAOX PremiumWaterSource GEM 9000Winner
OriginSingaporeSingapore
DistributionDirect retail · e-store + corporate rentalDirect retail · Evergreen Group subsidiary
CategoryAntioxidant water dispenserHydrogen-rich alkaline + portable
Plates79WaterSource GEM 9000
pH (max alkaline)10.210.6WaterSource GEM 9000
ORP-620 mV-700 mVWaterSource GEM 9000
Dissolved H₂0.95 ppm1.2 ppmWaterSource GEM 9000
Flow rate2.4 L/min2.5 L/minWaterSource GEM 9000
Warranty2 yr2 yrTie
Filter cost (each)S$ 180S$ 220AOX Premium
Sticker priceS$ 1,799S$ 4,999AOX Premium
5-year totalS$ 3,599S$ 7,199AOX Premium
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: AOX Premium saves S$ 3,600 over 5 years.

Lab performance: AOX Premium produces 0.95 ppm dissolved H₂; WaterSource GEM 9000 produces 1.2 ppm. The WaterSource GEM 9000 leads on hydrogen output.

Warranty: AOX Premium carries a 2-year warranty; WaterSource GEM 9000 carries 2. Same warranty length.

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 →

WaterSource GEM 9000

Direct retail · Evergreen Group subsidiary

Showroom: 8 New Industrial Road #01-02/03, LHK3, Singapore 536200

Phone: +65 8860 6951 · Hotline +65 9325 6199

Lineup: GEM 9000 ($4,999) · GEM 9090NT ($3,999) · H001 ($2,888) · H2 Cap Plus ($365) · Alkalark ($199) · Alkaliser ($158)

Visit WaterSource (Evergreen Group) →

No affiliate links · Waterionizer.sg earns zero from either purchase.