Full side-by-side
| Spec | Prime Water | Wells The One | Winner |
|---|---|---|---|
| Origin | Korea | Korea | — |
| Distribution | Sole authorised distributor | Direct retail · 2 SG showrooms | — |
| Category | Alkaline ionizer | Filtered hot/cold dispenser (NOT a true ionizer) | — |
| Plates | 9 | 0 | Prime Water |
| pH (max alkaline) | 11.0 | 8.5 | Prime Water |
| ORP | -728 mV | -180 mV | Prime Water |
| Dissolved H₂ | 1.34 ppm | 0.05 ppm | Prime Water |
| Flow rate | 4.0 L/min | 1.8 L/min | Prime Water |
| Warranty | 5 yr | 5 yr | Tie |
| Filter cost (each) | S$ 160 | — | Wells The One |
| Sticker price | S$ 2,800 / S$ 99/mo | — / S$ 49/mo | Prime Water |
| 5-year total | S$ 5,940 | S$ 2,940 | Wells The One |
| Our rating | 4.7/5 | — | — |
Verdict
Cost over 5 years: Wells The One saves S$ 3,000 over 5 years.
Lab performance: Prime Water produces 1.34 ppm dissolved H₂; Wells The One produces 0.05 ppm. The Prime Water leads on hydrogen output.
Warranty: Prime Water carries a 5-year warranty; Wells The One carries 5. Same warranty length.
What we recommend: Prime Water (Sole-distributor Korean ionizer, 5-year warranty, no MLM markup). We disclose owning this brand — the numbers above support the verdict, you can replicate any of them with the published methodology.
Where to buy + showroom info
Prime Water
Sole authorised distributor
Showroom: Singapore · by appointment via primewater.com.sg
Lineup: L Series · R Series · LV Series · RV Series
Visit Prime Water →Read our full review →
Wells The One
Direct retail · 2 SG showrooms
Showroom: Paya Lebar (140 Paya Lebar Rd #01-16) + Jurong East (8 Boon Lay Way #01-20)
Phone: +65 8828 8383 (sales) · +65 8797 8383 (service)
Lineup: The One · Home Café · Mini · Slim One · Ice One · TT Cooling+
Visit Wells Singapore →No affiliate links · Waterionizer.sg earns zero from either purchase.