Full side-by-side
AlkaViva H2 Athena Mfr claim
·
Panasonic TK-AS45 Mfr claim
| Spec | AlkaViva H2 Athena | Panasonic TK-AS45 | Winner |
|---|---|---|---|
| Origin | USA (imported) | Japan | — |
| Distribution | Online · ships internationally | Major retail (Tangs, Best Denki, Courts) | — |
| Category | Alkaline ionizer (US import) | Entry-level alkaline ionizer | — |
| Plates | 5 | 3 | AlkaViva H2 Athena |
| pH (max alkaline) | 10.3 | 9.5 | AlkaViva H2 Athena |
| ORP | -650 mV | -420 mV | AlkaViva H2 Athena |
| Dissolved H₂ | 0.92 ppm | 0.32 ppm | AlkaViva H2 Athena |
| Flow rate | 2.4 L/min | 2.0 L/min | AlkaViva H2 Athena |
| Warranty | 5 yr | 1 yr | AlkaViva H2 Athena |
| Filter cost (each) | S$ 220 | S$ 160 | Panasonic TK-AS45 |
| Sticker price | S$ 3,200 | S$ 899 | Panasonic TK-AS45 |
| 5-year total | S$ 5,400 | S$ 2,499 | Panasonic TK-AS45 |
| 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: Panasonic TK-AS45 saves S$ 2,901 over 5 years.
Lab performance: AlkaViva H2 Athena produces 0.92 ppm dissolved H₂; Panasonic TK-AS45 produces 0.32 ppm. The AlkaViva H2 Athena leads on hydrogen output.
Warranty: AlkaViva H2 Athena carries a 5-year warranty; Panasonic TK-AS45 carries 1. AlkaViva H2 Athena wins on coverage.
Where to buy + showroom info
AlkaViva H2 Athena
Online · ships internationally
Lineup: H2 Athena (5p) · Vesta H2 (8p) · Delphi H2 (7p)
Visit AlkaViva →Panasonic TK-AS45
Major retail (Tangs, Best Denki, Courts)
Lineup: TK-AS45 (3-plate)
Visit Panasonic →No affiliate links · Waterionizer.sg earns zero from either purchase.