Singapore · Est. 2026

The Water Purifier Index

A maintained, sourced dataset of purifiers sold in Singapore. Dimension leaders, never an overall score.

novita W1i — The InstantPerfect

TanklessUltrafiltration (UF)HotColdAmbient
View on brand site

Specification

Type
Tankless
Water source
Direct pipe
Filtration
Ultrafiltration (UF)
Outputs
Hot, Cold, Ambient
Installation
Countertop
Dimensions (W×D×H)
182 × 509 × 403 mm
Weight
9.2 kg

Physical specs source: estore.novita.com.sg · verified 6 Aug 2026

Pricing & terms

Purchase price
S$1,798
Warranty
1 year
Warranty coverage
1-year standard onsite warranty (W1/W1i product group); paid extension available
Installation fee
S$120
Annual servicing fee
Not published
Servicing terms
Not published

Pricing source: estore.novita.com.sg · verified 6 Aug 2026

Terms source: estore.novita.com.sg · verified 6 Aug 2026

Cost of ownership

Computed from the figures above using this site's published formula — see methodology. Purchase price plus every filter replacement due within the period, plus any published annual servicing fee.

3-year cost

Line itemUnit priceReplacementsSubtotal
Purchase priceS$1,798
W1/W1i Filter Replacement Pack (Sediment & Carbon Block + Nano Electrostatic Membrane)S$3203 × (every 10 mo)S$960
ServicingNot published
Total over 36 monthsS$2,758

5-year cost

Line itemUnit priceReplacementsSubtotal
Purchase priceS$1,798
W1/W1i Filter Replacement Pack (Sediment & Carbon Block + Nano Electrostatic Membrane)S$3205 × (every 10 mo)S$1,600
ServicingNot published
Total over 60 monthsS$3,398

Certifications

No filtration-performance certifications published for this model. See /certifications for what a certification like NSF/ANSI 42/53/58 actually tests, and why this column is often empty for SG-sold models.

Data notes

Price ambiguity: the product page displays a struck-through reference price of SGD 2,098 alongside a currently-charged price of SGD 1,798 (14% off), with no visible promotion end-date. This exact "was/now" pattern recurs across nearly all of novita's catalogue (not specific to a dated sale), so it is unclear whether 2,098 is a genuine standard price or a permanent reference/anchor figure. Recorded the charged price (1,798) as `purchase_price_sgd` per SCHEMA.md's perpetual-sale rule (record what a buyer actually pays today; strikethrough figures with no end date are anchor pricing); the 2,098 reference figure is kept here for the record and quarterly re-verification will catch any reversion. Filter: product page states capacity/interval as "10 Months/3,000 Litres (Designed And Produced For), whichever comes first" — recorded 10 months. Filtration classified as `uf` (ultrafiltration): novita markets this as "5 Steps Ultra Filtration" using a hollow-fibre/"Nano Electrostatic Membrane" + sediment/carbon stack; no RO membrane, drain line, or reject water is mentioned for this pipe-in model. Installation fee (SGD 120) inferred from the general installation/warranty policy page's cancellation-fee wording ("a cancellation fee of ... S$120 standard installation cost"), which states this figure as the value of standard installation rather than a directly quoted install price on the product page itself — used as the best available published figure. Warranty: the general policy page groups W1/W1i under "1-year standard onsite warranty and 1-time delivery / standard installation to a single location"; exact coverage inclusions/exclusions (parts vs labour) are not itemised on site, so `warranty_coverage` records only the published classification, not a paraphrase of unstated scope. Certifications: no formally scoped certification (e.g. NSF/JIS/SGS with stated test scope) found published for this model on novita's own site; left empty per schema (marketing claims without a defined scope are excluded, not paraphrased into certifications).