Hario Polaris Coffee Scale
Image coming soon
Available colors
- Black
- White
One-line verdict
For minimalist pour-over users who want an ultra-slim, automatic timer scale that slips under any dripper without raising brew height, the Hario Polaris offers reliable 0.1 g accuracy and smart auto-start features at a strong mid-range price.
How it compares
- vs Hario V60 Drip Scale ($48): Polaris wins on automatic timer start and brighter display, V60 wins on lower price
- vs OXO Brew Precision Scale with Timer ($58): Polaris wins on slimmer profile and modern design, OXO wins on larger 6 lb capacity
- vs Timemore Black Mirror Basic 2 ($59): Polaris wins on auto timer detection, Timemore wins on rechargeable battery and flow-rate display
AI-summarized review themes
Frequently praised
- Extremely slim 20 mm profile fits perfectly under V60, Kalita, or espresso machines without altering pour height noticeably
- Automatic timer starts on first drop detection and pairs perfectly with pour-over recipes, reviewers frequently replicate competition-level consistency
- Solid 0.1 g accuracy across the full platform with no noticeable drift after 18 months of daily use
Frequently criticized
- Button cell batteries still require replacement every 4–6 months, less convenient than USB-C rivals
- Display can wash out slightly in very bright direct sunlight compared to backlit premium models
Best for
tight kitchen counters, pure pour-over focus (V60/Kalita), users who want automatic timing without apps
Not for
espresso flow-rate tracking, users wanting rechargeable power or Bluetooth, large Chemex batches
Specifications
| Spec | Value |
|---|---|
| Capacity | 2000 g |
| Precision | 0.1 g |
| Dimensions | 130 × 130 × 20 mm |
| Power | CR2032 button cell |
| Materials | Plastic with heat-resistant pad |
| Timer | Yes, automatic start |
Data sources
- Estimated ~780 public reviews referenced across Serious Eats, Amazon, Seattle Coffee Gear
- Review period: 2025–2026
- Last generated: 2026-04-06