It asks a counter for 4.1 in (10.5 cm) across and 4.1 in (10.5 cm) front to wall. We have 3 of its 6 figures; each one below links to the page it comes from.
$250
BlackAt Clive Coffee · Oct 29
13 reports · 4 sources, across 6 topics
Against your counter
Give us the three numbers and this drawing puts the machine on your own counter.
Room the Lunar Espresso Scale asks for around it
Nothing is drawn for a figure nobody states, and the answer above stays at what published figures can carry.
Makers and retailers publish 3 of the 6 figures a fit check uses; the other 3 you measure on your counter like this:
Nothing fits on its own, it fits a particular counter, so this page holds the figures and a setup makes the call.
Your counter has 4.1 in (10.5 cm) across and 4.1 in (10.5 cm) front to wall to give it, with 0.6 in (1.5 cm) clear above.
Depth is published at 4.1 in (10.5 cm), and it is the figure most likely to end this search. Measure the space you have against it before anything else. Measure from the very back of the item to the very front, at its deepest point. (manufacturer)
Your counter has more room than this one asks for. The Basic 3.0 Electronic Espresso Scale with Timer is 1.4 in (3.5 cm) larger across, in the same category, and we have its width, depth and height figures too.
Acaia Lunar draws at 5 V. Every figure behind this is a manufacturer's published dimension, and nobody has put a tape on one.
The setup it lives in
What each merchant showed, and the day we looked.
Same price at both sellers: $250 · Oct 29.
Out of stock at Acaia · Oct 29
Refunds a price drop within 14 days
What owners say in their own reviews and posts, on the things no maker states: the tank, the hopper, the room around the machine. We quote them; we never use their words as a measurement or a fit answer.
In short
Thirteen reports describe the Lunar 2021. Three say it is low enough to fit under a portafilter or group head, two read its heavy weight as a sign it will last, and one finds it easy to clean. The most repeated complaint is accuracy: reports describe a scale that arrived out of calibration, one that never read right however often it was charged or calibrated, a reading that drifts by about a tenth of a gram, and a tare that resets mid-shot, though one report calls it accurate. The biggest caution is the first weeks: one report's Bluetooth connection failed intermittently until the unit was exchanged, and another's scale bricked during its first firmware update and took about two weeks to replace. The full reports are below, grouped by topic.
What an owner wroteAs of 10 September 2026. We quote owners in their own words; it is never a measurement or a fit answer.
Three reports, two of them from the same retailer page, say the scale fits in tight spots on an espresso machine: one says it fits below a low-clearance portafilter and can still be read, and another says it fits under the group head. The third, from a forum thread, names it as the scale that fits on a Bambino Plus.
the perfect size to fit below a low clearance portafilter without sacrificing readability
the scale is low enough to sit under a portafilter with little room beneath it and still be read
a review on a retailer's site, clivecoffee.com · 2023-12-20
the shop stamped a block of its imported reviews with this single date, so 2023-12-20 is when the pool was loaded and not necessarily the day the owner wrote it. For this product the space above is the group head, not a cabinet
light weight, accurate scale that can fit under the group head
a second owner reports the scale clears the group head where it stands
a review on a retailer's site, clivecoffee.com · 2023-12-20
the shop stamped a block of its imported reviews with this single date, so 2023-12-20 is when the pool was loaded and not necessarily the day the owner wrote it
The Acaia Lunar fits on my Bambino+
an owner answers a question about which scales fit a Bambino Plus drip tray by naming this one from his own machine
a forum post, www.home-barista.com · 2026-07-13
the question the post answers is about the drip tray, so "fits" here covers both the tray it stands on and the group above it; the same thread also carries the scale's width in millimetres, which is a measurement and is deliberately not taken here
Noise, mess, the first weeks, how it holds up: what owners wrote about the days after the box. Reviews, in their words, counted one by one; none is a measurement and none touches the fit answer.
What an owner wroteAs of 11 September 2026. We quote owners in their own words; it is never a measurement or a fit answer.
Two reports describe calibration trouble: in one, the scale never gave an accurate reading no matter how often it was charged or calibrated, and in the other it arrived out of calibration straight out of the box.
no matter how much I charge the scale or calibrate it
an owner could not get an accurate reading no matter how often they charged or calibrated the unit
a review on a retailer's site, clivecoffee.com · 2022-03-16
the shop does not mark this reviewer verified; the same review says Acaia later offered a paid repair under the two-year warranty
out of calibration straight out of the box
a different owner reports the scale arrived out of calibration
a review on a retailer's site, www.seattlecoffeegear.com · 2020-09-08
Two reports describe a rough first stretch: one says a Bluetooth connection dropped intermittently for weeks before the unit was exchanged, and the other says a scale bricked during its first firmware update, with a replacement taking about two weeks to arrive.
Bluetooth had intermittent connection issues
an owner's Bluetooth connection failed intermittently over several weeks and the unit was eventually exchanged
a review on a retailer's site, clivecoffee.com · 2024-07-24
the shop does not mark this reviewer verified; the same review describes a long, unpleasant back-and-forth with Acaia support before the exchange
it bricked in the middle of the update
the scale bricked during its first firmware update out of the box, and the replacement took about two weeks to arrive
a review on a retailer's site, www.seattlecoffeegear.com · 2024-06-10
One report says the scale wipes clean easily.
It cleans off very easily too
the same owner who calls it heavy above also finds it wipes clean easily
a review on a retailer's site, clivecoffee.com · 2023-12-20
same 2023-12-20 bulk-import stamp; one review, two things said, kept as two entries so neither reads as more than one owner
Three reports, all from the same retailer page, describe how the scale holds up. One calls it solid and built tough; the other two describe problems, a reading that floats by about a tenth of a gram on its own and a tare that sometimes resets in the middle of a shot.
Solid scale, built tough.
an owner who paired it with a La Marzocco Linea Mini calls the build solid and tough
a review on a retailer's site, clivecoffee.com · 2026-03-28
Weight will float around by a tenth or so
a second owner reports the reading drifts by about a tenth of a gram on its own
a review on a retailer's site, clivecoffee.com · 2023-12-20
2023-12-20 bulk-import stamp; the same review also says the touch buttons take some learning
it resets the tare in the middle of pulling a shot
a third owner's unit resets its tare mid-shot on occasion, throwing off the weight reading
a review on a retailer's site, clivecoffee.com · 2023-12-20
2023-12-20 bulk-import stamp
Two reports call the scale heavy: one says it looks like it will last, and the other reads the weight itself as a sign of reliability.
Heavy. Looks like it will last
an owner on their second such scale calls it heavy and expects the build to hold up
a review on a retailer's site, www.wholelattelove.com · 2026-03-01
Its heavy. Weight is a sign of reliability.
a second owner reads the scale's heft itself as reassurance of durability
a review on a retailer's site, clivecoffee.com · 2023-12-20
clivecoffee.com stamps a block of imported reviews with 2023-12-20, so that date is the day the shop loaded the review and not necessarily the day the owner wrote it
The size, and where each figure comes from
Acaia Lunar is 4.1 in (10.5 cm) wide, 4.1 in (10.5 cm) deep and 0.6 in (1.5 cm) tall (acaia.co, 11 September 2026). Every figure behind this is a manufacturer's published dimension, and nobody has put a tape on one.
| Product | Fact | Value | Source type | Source | Dated | State | Used | What it decides |
|---|---|---|---|---|---|---|---|---|
| Lunar Espresso Scale (2021) | depth | 4.1 in (10.5 cm) | Manufacturer | acaia.co | Evidence: complete, from published figures, not measured: Published | Yes | Used for fit | |
| Lunar Espresso Scale (2021) | height | 0.6 in (1.5 cm) | Manufacturer | acaia.co | Evidence: complete, from published figures, not measured: Published | Yes | Used for fit | |
| Lunar Espresso Scale (2021) | voltage | 5 V | Manufacturer | acaia.co | Evidence: complete, from published figures, not measured: Published | Yes | Used for power | |
| Lunar Espresso Scale (2021) | weight | 0.6 lb (265 g) | Manufacturer | acaia.co | Evidence: complete, from published figures, not measured: Published | Yes | Not used for fit | |
| Lunar Espresso Scale (2021) | width | 4.1 in (10.5 cm) | Manufacturer | acaia.co | Evidence: complete, from published figures, not measured: Published | Yes | Used for fit |
The picture · why this one is drawn
As of11 September 2026Sourcesacaia.coMeasured by usnothing yet; published figures only
