Full side-by-side

AOX Premium Mfr claim · Panasonic TK-AS45 Mfr claim
SpecAOX PremiumPanasonic TK-AS45Winner
OriginSingaporeJapan
DistributionDirect retail · e-store + corporate rentalMajor retail (Tangs, Best Denki, Courts)
CategoryAntioxidant water dispenserEntry-level alkaline ionizer
Plates73AOX Premium
pH (max alkaline)10.29.5AOX Premium
ORP-620 mV-420 mVAOX Premium
Dissolved H₂0.95 ppm0.32 ppmAOX Premium
Flow rate2.4 L/min2.0 L/minAOX Premium
Warranty2 yr1 yrAOX Premium
Filter cost (each)S$ 180S$ 160Panasonic TK-AS45
Sticker priceS$ 1,799S$ 899Panasonic TK-AS45
5-year totalS$ 3,599S$ 2,499Panasonic 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$ 1,100 over 5 years.

Lab performance: AOX Premium produces 0.95 ppm dissolved H₂; Panasonic TK-AS45 produces 0.32 ppm. The AOX Premium leads on hydrogen output.

Warranty: AOX Premium carries a 2-year warranty; Panasonic TK-AS45 carries 1. AOX Premium wins on coverage.

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 →

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.