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Our Verdict
The Hiroia Jimmy is a clever compact scale with a unique detachable display that solves the visibility problem other scales ignore. Its 1000g capacity is limiting for large pour-overs, but for espresso dosing and single-cup brewing it is a thoughtfully designed alternative to the Acaia Pearl at a lower price.
Pros
- + Detachable magnetic display can be positioned at eye level for better ergonomics
- + Bluetooth app integration supports custom recipe creation and brew logging
- + Compact 120mm square footprint fits under most espresso machines and drippers
Cons
- – 1000g max capacity is half that of competitors, limiting use with larger brew methods
- – Not readily available on Amazon US, requiring purchase from specialty retailers
- – App connectivity can be unreliable with frequent Bluetooth disconnections reported
Our Take
The Hiroia Jimmy distinguishes itself from other brew scales with one clever design choice: a detachable magnetic display that can be positioned away from the scale platform. This solves the common annoyance of not being able to read the screen when a large dripper or espresso machine cup sits on top of the scale. The display snaps onto any magnetic surface or stands upright at eye level, reducing the neck-craning posture that plagues users of traditional flat scales.
Built as a collaboration between Hiroia and Hario, the Jimmy packs Bluetooth connectivity and a companion app that supports custom recipe building, real-time flow rate tracking, and brew data logging. The 0.1g precision and auto-start timer handle the fundamentals well, and the dedicated espresso mode tracks shot time from the first drop detected. At 280 grams, it is one of the lighter scales in its class.
The most significant limitation is the 1000g maximum capacity, which is half what the Acaia Pearl and Timemore Black Mirror offer. This is fine for espresso dosing and single-cup pour-overs, but brewers making larger batches or using heavier ceramic drippers may find themselves bumping against the limit. The scale is also not readily available on Amazon US, requiring purchase from specialty retailers or the Hiroia website directly.
Specifications
| Spec | Value |
|---|---|
| MSRP | $120 |
| Max Capacity | 1000g |
| Precision | 0.1g |
| Timer | Yes |
| Auto Start | Yes |
| Weight Grams | 280 |
| Bluetooth Connectivity | Yes |
Frequently Asked Questions
Where can I buy the Hiroia Jimmy scale in the US?
The Hiroia Jimmy is not widely available on Amazon US. You can purchase it from the official Hiroia website, Whole Latte Love, or specialty coffee retailers like The Brew Therapy and Coffee Sensor. The official site offers free shipping on orders over $200.
Is the Hiroia Jimmy scale good for espresso?
Yes, the Jimmy is well-suited for espresso with its 0.1g precision, compact size that fits under most portafilters, and a dedicated espresso mode in the companion app that tracks shot time and weight simultaneously.
How does the Hiroia Jimmy compare to the Acaia Pearl?
The Hiroia Jimmy costs less and has a unique detachable display, but its 1000g max capacity is half the Acaia Pearl's 2000g limit. The Acaia has a more mature app ecosystem and faster response time, while the Jimmy's magnetic display offers better ergonomics for espresso workflows.
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