Full side-by-side
AlkaViva H2 Athena Mfr claim
·
Coway Villaem / Neo Plus Mfr claim
| Spec | AlkaViva H2 Athena | Coway Villaem / Neo Plus | Winner |
|---|---|---|---|
| Origin | USA (imported) | Korea | — |
| Distribution | Online · ships internationally | Direct retail + rental (huge SG presence) | — |
| Category | Alkaline ionizer (US import) | Rental water purifier (NOT a true ionizer) | — |
| Plates | 5 | 0 | AlkaViva H2 Athena |
| pH (max alkaline) | 10.3 | 7.5 | AlkaViva H2 Athena |
| ORP | -650 mV | -50 mV | AlkaViva H2 Athena |
| Dissolved H₂ | 0.92 ppm | 0.02 ppm | AlkaViva H2 Athena |
| Flow rate | 2.4 L/min | 2.0 L/min | AlkaViva H2 Athena |
| Warranty | 5 yr | 5 yr | Tie |
| Filter cost (each) | S$ 220 | — | Coway Villaem / Neo Plus |
| Sticker price | S$ 3,200 | — / S$ 49/mo | AlkaViva H2 Athena |
| 5-year total | S$ 5,400 | S$ 2,940 | Coway Villaem / Neo Plus |
| 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: Coway Villaem / Neo Plus saves S$ 2,460 over 5 years.
Lab performance: AlkaViva H2 Athena produces 0.92 ppm dissolved H₂; Coway Villaem / Neo Plus produces 0.02 ppm. The AlkaViva H2 Athena leads on hydrogen output.
Warranty: AlkaViva H2 Athena carries a 5-year warranty; Coway Villaem / Neo Plus carries 5. Same warranty length.
Where to buy + showroom info
AlkaViva H2 Athena
Online · ships internationally
Lineup: H2 Athena (5p) · Vesta H2 (8p) · Delphi H2 (7p)
Visit AlkaViva →Coway Villaem / Neo Plus
Direct retail + rental (huge SG presence)
Showroom: Multiple SG locations · in-mall booths + service centres
Phone: +65 6593 8000
Lineup: Villaem · Neo Plus · Aqua Mega · Cinnamon · P-300 · P-08L
Visit Coway Singapore →No affiliate links · Waterionizer.sg earns zero from either purchase.