Full side-by-side

Coral Premium 9 Mfr claim · WaterSource GEM 9000 Mfr claim
SpecCoral Premium 9WaterSource GEM 9000Winner
OriginSingaporeSingapore
DistributionDirect retailDirect retail · Evergreen Group subsidiary
CategoryHydrogen water + multi-stage filterHydrogen-rich alkaline + portable
Plates99Tie
pH (max alkaline)8.310.6WaterSource GEM 9000
ORP-120 mV-700 mVWaterSource GEM 9000
Dissolved H₂0.1 ppm1.2 ppmWaterSource GEM 9000
Flow rate2.2 L/min2.5 L/minWaterSource GEM 9000
Warranty2 yr2 yrTie
Filter cost (each)S$ 160S$ 220Coral Premium 9
Sticker priceS$ 2,968S$ 4,999Coral Premium 9
5-year totalS$ 4,568S$ 7,199Coral Premium 9
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: Coral Premium 9 saves S$ 2,631 over 5 years.

Lab performance: Coral Premium 9 produces 0.1 ppm dissolved H₂; WaterSource GEM 9000 produces 1.2 ppm. The WaterSource GEM 9000 leads on hydrogen output.

Warranty: Coral Premium 9 carries a 2-year warranty; WaterSource GEM 9000 carries 2. Same warranty length.

Where to buy + showroom info

Coral Premium 9

Direct retail

Showroom: Block 37 Defu Lane 10 #03-41, Singapore 539214

Phone: +65 6239 5335 · Sales +65 8761 6868

Lineup: Premium 9 Slim ($3,413) · 9 H Plus ($4,949) · 9 Compact ($3,168) · 9 H ($2,968) · 7 ($1,968) · 5 ($1,688) · 4 ($949)

Visit Coral Pure Natural Pte Ltd →

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.