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Community favorite
Acaia
Pearl
The smart pour-over scale that set the standard: fast, precise, with a live flow-rate indicator and long USB-C battery life.
8.5
Great
Coffee Reviews score
See the breakdown →
Community
—/10
- Type
- Smart coffee scale
- Capacity
- 2000 g (70.55 oz); indication limit 2060 g
- Readability
- 0.1 g; repeatability 0.1 g
- Typical price
- $150
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Last reviewed October 17, 2026 by the Coffee Reviews editors · How we score
The smart pour-over scale that set the standard: fast, precise, with a live flow-rate indicator and long USB-C battery life.
Acaia's 2021 redesign of its original scale reads 0.1 g up to 2 kg, adds a real-time flow-rate indicator, a brighter display for sunlight readability and USB-C charging with a 30–40 hour battery, and connects to Acaia's apps over Bluetooth 5.0. It ships with a heat-resistant pad and has a 2-year warranty in the US. Reviewers call it the standard setter for smart coffee scales, while criticizing its companion apps and noting it is too bulky for most home espresso machines.
Best for
- Pour-over enthusiasts who want flow-rate feedback
- Café-style brew bars
- Recipe tracking with Acaia's apps
What we like
- Fast, precise 0.1 g readings up to 2 kg
- Real-time flow-rate indicator for pour-over
- 30–40 hour battery with USB-C charging
- Bright, sunlight-readable display
Watch-outs
- Expensive
- Companion apps are poor and dated (CoffeeGeek)
- Too bulky for most home espresso machines
- Not waterproof
How it scored
The breakdown.
8.5Great
Gear score out of 10, weighted across five factors.
- Performance30%9.2
CoffeeGeek praises its zippy response times and industrial-grade accuracy, and Coffeeness calls the live flow-rate indicator its crowning glory.
- Build & reliability20%9.0
Well-finished 500 g scale with a 30–40 hour USB-C battery, a heat-resistant pad and a 2-year US warranty.
- Ease of use15%8.3
Multiple brewing modes and a sunlight-readable display, but CoffeeGeek calls the connected apps poor and it is too bulky for most espresso machines.
- Value20%6.8
$150 is several times the price of capable budget scales like the Timemore Basic 2.0.
- Community love15%9.0
CoffeeGeek calls it the standard setter for smart coffee scales, and Coffeeness says it is ubiquitous in high-end coffee shops.
Creator video reviews
Watch it in action.
2 positive
Independent creators, verified with YouTube and TikTok. We don’t pay for reviews and creators don’t pay us.
What people are saying
From the forums.
Verbatim from Reddit, forums and long-term owner write-ups — linked so you can read the full thread.
“The Acaia Pearl 2021 Scale is a quality update for their flagship scale. The USB-C connector, faster charging times, 30hr battery, increased capacity and zippy response times are all fantastic.”
“The Pearl is only let down by its poor and outdated connected apps.”
“The new flow rate indicator is, perhaps, the crowning glory of this fantastic coffee scale.”
“With all that said, I should point out that the Acaia Pearl is far from ideal for use as an espresso scale, given the fact that it’s rather bulky…”
Specifications
By the numbers.
- Model
- AP007 / AP008 / AP009
- Capacity
- 2000 g (70.55 oz); indication limit 2060 g
- Readability
- 0.1 g; repeatability 0.1 g
- Flow rate
- Real-time flow-rate indicator
- Modes
- Weighing, Dual Display, Pour Over Auto Start Timer, Beverage and more
- Display
- 8-digit LED, optimized for sunlight readability
- Battery
- 3.7 V 1100 mAh Li-ion, 30–40 hours of continuous use
- Charging
- USB Type-C (5 V / 500 mA)
- Connectivity
- Bluetooth 5.0
- Size & weight
- 160 × 160 × 32 mm; 500 g ± 5 g
- Included
- Heat-resistant pad, USB-C cable
- Dimensions
- 160 × 160 × 32 mm
- Weight
- 500 g
- Warranty
- 2 years (US/EU)
- Brews
- Pour-over, Espresso, AeroPress
- Typical price
- $150 (checked October 2026)
Community
Member tasting notes & discussion.
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Discussion
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FAQ
Good questions.
Is the Acaia Pearl good for espresso?
It is fast and precise enough, but Coffeeness and Coffee Kev say it is too bulky for the limited space under most home espresso machines; Acaia's Lunar is its espresso scale.
What did the 2021 Pearl update add?
Acaia says it added a built-in flow-rate indicator, USB-C charging and a brighter display for better sunlight readability.
How long does the battery last?
Acaia rates its 1100 mAh battery for 30–40 hours of continuous use, depending on brightness and settings.
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Best value
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7.9Good
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Hario
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