China ORIGIN
4 MODELS
0.01 H₂ PPM (CLAIMED)
1y WARRANTY
S$599 FROM
NOT an ionizer · smart RO
— Rating pending independent lab verification

Xiaomi's Mi Water Purifier 600G is an under-sink RO system with smartphone app monitoring of filter life. Aggressively priced (~S$599) and available through Mi Stores / Lazada / Shopee. Same category framing: RO filtration, not alkaline ionization.

~S$ 599
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⚔ What stands out

Cheapest smart under-sink RO at S$599 · app-monitored filter life · NOT an alkaline ionizer.

📦 What they sell
  • Mi Water Purifier 600G500G400G · countertop variants
🏆 Where they beat the field
  • Cheapest under-sink RO in SG at S$599
  • Smart-home integration — app monitors filter life
  • Cheap cartridges (~S$60)
  • Direct purchase, no rental lock-in
🚫 Where they don't compete
  • NOT an alkaline ionizer
  • RO strips minerals
  • 1-year warranty is short
  • Minimal SG service

Source: manufacturer's public site · cited at the bottom of this page.

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What the brand gets right · what it doesn't

Pros

  • Cheapest under-sink RO in SG (~S$599)
  • Smart-home integration · app monitors filter life
  • Compact design · easier under-sink fit than legacy RO
  • Filter cartridges are cheap (~S$60)
  • Direct purchase, no rental lock-in

Cons

  • NOT an alkaline ionizer
  • RO removes minerals (some buyers see this as a negative)
  • 1-year warranty is short
  • Service network in SG is minimal (Mi Stores)
  • Tech-savvy install assumed

Manufacturer-claimed specs

Source-of-truth note: Specs sourced from www.mi.com/sg. Manufacturer-claimed; independent lab verification pending Q3 2026.
Type
Under-sink RO + app (NOT a true ionizer)
pH at highest setting
~7.3
ORP
~-20 mV
Dissolved H₂
~0.01 ppm
Flow rate
~1.6 L/min
Warranty
1 years

Available models

Mi Water Purifier 600G · 500G · 400G · countertop variants

Who this brand is for

Who should look elsewhere

5-year cost

Unit
~S$ 599
Installation
~S$ 150
Filters (15× ~S$60)
S$ 900
5-year total
~S$ 1,649 · ≈ S$ 0.90 / day

How to buy

Company
Xiaomi
Website
www.mi.com/sg

Footnotes