Hario · Conical burrSmart G Electric
A pocket-sized ceramic conical hand grinder that snaps onto a rechargeable USB stick motor so you can grind by hand or push a button. It is built for travel and filter coffee, not for chasing espresso consistency.
The short version
This is a hand grinder that got tired of being hand-cranked, not a grinder that competes with desktop espresso gear.
Buy it for camping, hotel rooms, and pour-over on the road, and accept that fine-grind consistency for espresso is a stretch for this class of machine.
Why people buy it
- Genuinely pocketable and light, easy to toss in a travel bag
- Ceramic conical burrs are consistent and durable for filter-range grinding
Why they don’t
- Small single-hand chassis shakes during motorized grinding, which some owners find awkward to hold steady
The full tally
- Genuinely pocketable and light, easy to toss in a travel bag
- Ceramic conical burrs are consistent and durable for filter-range grinding
- Switches between manual crank and motorized grinding on the same unit
- USB-rechargeable battery removes the arm fatigue of pure hand grinders
- Small single-hand chassis shakes during motorized grinding, which some owners find awkward to hold steady
- Battery life is limited to roughly two minutes of continuous use per charge, fine for one dose, not for grinding for a crowd
- Espresso-fine grinding is possible but not the strong suit of this burr set or format
What the community knows
Years of owner threads, distilled — the community advises against it.
A failed design compromise—motorized hand-burr grinders abandon portability without gaining electric grinder stability; spindle durability is documented as fragile, repairs impossible, and the machine solves no genuine need the community faces.
Design pull
Beginner fit
kind to first-timers
Convenience
speed and simplicity, day to day
All 9 community measures
price-to-performance the community respects
shows up every morning, year after year
parts and repairs — you are never stranded
mods, guides, and community know-how around it
kind to first-timers
years before you outgrow or replace it
how far the cup can go, per dollar
speed and simplicity, day to day
Worth knowing before you buy — Community consensus: avoid entirely and buy a proper hand grinder or a bench electric instead—this splits neither market.
Known weak points — Spindle durability concerns with conical burrs under motor load; no documented repair path or parts availability.
Limited community track record on this model — the read above leans on our own spec-honest assessment, and we flag that rather than hide it.
The measurements
Scored 0–5 on the same rubric as everything on file — the words matter more than the numbers.
The measurements
0–5, one rubric- Espresso
- brew-only2
- Versatility
- narrow3
- Built to last
- fair2.5
Position in the market
Every dot is a rival, measured the same way. The gold one is this.
- Lower half for espresso suitability
- a higher ceiling than 18 of the 154 grinders we’ve measured
- A value pick at this level
- 91% of grinders this capable cost more
- Lower half for build
- sturdier than 7% of the field, by the community’s own record
Every dot is a grinder measured on the same rubric. See the whole market
Living with it
The part spec sheets skip: counter space, upkeep, and what owners learn later.
The honest note — Owners who like the format but want less arm effort and better grind consistency for espresso typically move up to a proper single-dose electric grinder (e.g. DF64-class) once they settle into a home setup rather than travel use.
The full spec sheet
- Class
- Hand grinder
- Burrs
- 38mm conical
- Drive
- Hand-cranked
- Adjustment
- Stepped (micro)
- Clarity lean
- Syrup & body
- Espresso suitability
- 2/5
- Brew versatility
- 3/5
- Retention
- ~2 g
- Single dosing
- Yes
- Hopper
- 24 g
- Maintenance
- 1/5
- Noise
- 2/5
- Build longevity
- 2.5/5
- Dimensions
- 15 × 5.3 × 19 cm
Before it arrives
What completes this grinder — the faded pieces can wait.
Coffee scale with timer — Espresso is a ratio. A 0.1g scale with a built-in timer is the single biggest consistency upgrade for any manual machine.
- Coffee scale with timer — Espresso is a ratio. A 0.1g scale with a built-in timer is the single biggest consistency upgrade for any manual machine.
- Dosing cup — Pairs with single-dose grinding — grind into the cup, swirl, and transfer to the portafilter cleanly.
- Grinder cleaning kit — Brushes and grinder tablets keep retention and stale grounds in check.
Feed it right
Week one is dial-in — and stale beans will lose it.
Coffee more than a few weeks past roast won’t extract predictably, and a new grinder gets blamed for it. These burrs pull syrup — naturals and classic medium roasts play straight into their character.
Pick your coffee — any of these dials in beautifully here:
Highland Elixir - Papua New Guinean Sigri PlantationSCA 86Medium-dark · Wahgi Valley, Western Highlands · WashedBright Citrus · Caramel SweetnessSyrup and body, matched to these burrs.CA$22.43 · roasted to order
Lavabloom - Indonesian Sumatra MandhelingMedium-dark · Mount Leuser, Sumatra · Wet Hulled (Giling Basah)Dark Earth · Bittersweet ChocolateSyrup and body, matched to these burrs.CA$19.02 · roasted to order
Wild Ember - Ethiopian Buno Dambi UddoSCA 92Medium roast · Odo Shakiso, Guji Zone, Oromia · NaturalBlueberry · MarmaladeSyrup and body, matched to these burrs.CA$26.83 · roasted to orderWhole bean, dated, ready for your burrs the week it lands.
Roasted to order, daily, in Ajax, Ontario · ships Canada-wide. We’re the roastery behind this database — measuring the machines is how we make sure the coffee gets a fair shot.
On film
How it runs on camera, from around the community.
Common questions
Can the Hario Smart G Electric grind fine enough for espresso
It has an adjustment range that stretches toward fine settings, but the compact ceramic conical burr and small motor are optimized for filter brew methods; espresso consistency is inconsistent at best.
How long does the battery last
The lithium-ion motor attachment is rated for a limited number of grinds per charge, roughly two minutes of continuous motorized use, enough for a single dose rather than back-to-back batches.
Is this the same as the regular Hario Smart G hand grinder
Yes, the base unit is the same Smart G ceramic conical hand grinder; the Electric version adds a detachable USB-rechargeable motor stick that clips on so you do not have to crank by hand.
Worth comparing
Baratza
Encore
The Encore is the archetypal entry-level burr grinder — cheap, repairable, and genuinely wide-ranging for filter brewing. Espresso dialing is its known soft spot; the stepped adjustment gives 90-micron jumps at fine settings, which is more guesswork than craft.
US$119–175 · CA$195–200
Baratza
Encore ESP
The Encore ESP is Baratza's espresso-oriented reimagining of their classic Encore, fitting 40mm M2 conical burrs and a dual-resolution stepped collar into a sub-$200 package that handles both espresso and filter from one grinder.
US$199–200 · CA$275–280
Fellow
Opus Conical Burr Grinder
Fellow's all-purpose entry grinder with 40mm C6-40 conical burrs, 41 stepped settings plus inner-ring micro-adjustment, and anti-static tech — a genuine espresso-to-cold-brew single-doser at a price most people will actually pay.
CA$240–280 · US$175–200
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