What the maker puts in writing
- “WiFi & App Remote Control - Cook from Anywhere: …Once connected to your 2.4GHz WiFi network via the INKBIRD app, you can monitor the temperature, adjust settings, and start or stop your cook from anywhere”
- “Powerful & Ultra-Quiet Operation: The 1000W high-power heater ensures fast heating and maintains an even temperature for up to 15 liters of water. Despite its power, it operates quietly at less than 40dB, letting you cook overnight or during family time without disturbance”
- “Precise Control with Intuitive Touchscreen: Achieve optimal doneness every time with a wide temperature range (77-210F/25-99C) and remarkable 0.1C (0.2F) accuracy. Set precise cooking times up to 99 hours with the clear LCD touchscreen”
- “Restaurant-Quality Meals Made Simple & Healthy: Seal in juices, moisture, and natural flavors… Get started quickly with the included easy-to-follow free recipe guide”
- “Built for Reliability with Self-Calibration: …a user-friendly calibration function (adjustable from -10F to +10F), so you can always trust the temperature reading for dependable, repeatable results”
- “Easy Setup and Universal Compatibility: Simply attach the sous vide cooker to any pot with water and drop your desired food in a sealed bag or glass jar, then set the temperature and timer”
- Reference ISV-100W · Catalog: 60 × 60 × 410 mm (2.36 × 2.36 × 16.1 in)
“Despite its power, it operates quietly at less than 40dB, letting you cook overnight or during family time without disturbance.”
For scale: a quiet library is around 40 dB, a refrigerator hum 40 to 45, ordinary conversation 60, a kitchen extractor on its lowest setting 50 to 55.
Under 40 dB is quieter than a fridge.
Why it is the right specification to publish, and why it is strange that nobody else does.
Sous vide’s best cooks are its longest ones. Brisket at 155 °F for 24 to 36 hours. Short ribs for 48. Tough cuts for 72. Those cooks run through the night, in whatever room the kitchen is.
A pump that whines is a pump you turn off — and a cook you abandon at hour six is a cook wasted.
What makes the noise is the impeller, not the heater. A heating element is silent; a pump moving 8 to 20 liters a minute is not.
Six items on this shelf name a brushless DC motor: all five KitchenBoss units and Greater Goods at $89.99 (“A brushless motor keeps operation remarkably quiet”).
And the KitchenBoss pages go further into the mechanism than anyone. The G330 at $169.99: “45 degree angled double sided stainless steel spiral design and stainless steel diamond water inlet design to prevent the spread of noise maximum.” The G320PS at $159.99: “The impeller design, angled at 135 degrees, pairs with an oval hole in the sleeve to minimize noise.” And the G310PS at $112.52 is the only item on this shelf with a mute mode — “press and hold the time mode for 3 seconds to activate mute mode”, which silences the beeper rather than the motor.
None of them gives a number.
No Anova on this shelf mentions its motor at all — not the Nano at $68.28, the 2.0 at $117.99, the 3.0 at $169.99 or the Pro at $271. The Breville Joule Turbo at $149.95 publishes nothing of any kind.
So this is the only page here you can hold to a figure — which is what makes a figure worth publishing.
Calibration, which is worth more than every accuracy claim on this shelf
“a user-friendly calibration function (adjustable from -10F to +10F), so you can always trust the temperature reading for dependable, repeatable results”
The distinction the shelf mostly ignores.
Stability is how steadily a machine holds whatever it is reading. That is what ± 0.1 °C describes, and it is a statement about the controller and the pump.
Justness is whether the reading is right. That is a statement about the sensor, and nothing in a stability figure touches it.
A circulator that holds 60.0 °C to a tenth of a degree is useless if its probe reads 1.5 °C high. It will hold 61.5 °C all day without a flicker, and the display will say 60.0 the whole time.
Which is exactly how a sous vide steak comes out a shade past where you wanted it and you cannot work out why.
Only two items on this shelf let you fix it: this, and Greater Goods at $89.99 — “built-in calibration lets you fine-tune the reading against a trusted thermometer.”
And the Greater Goods wording is the better of the two, because it says out loud that you need a reference. An offset dialed in against nothing is just a different wrong number.
How you actually use it: a second thermometer in the bath, at temperature, stirred, after a long enough hold to settle — then dial in the difference.
A ±10 °F adjustment range is generous, and it tells you something about the drift the maker expects.
What the rest of the shelf claims instead:
”± 0.1 °C (0.2 °F) accuracy” — the Anova Nano at $68.28, the only page here to use the word accuracy about a figure
“Setting accuracy can be up to 0.1℉/0.1℃” — all five KitchenBoss units, which is a display resolution
A “0.1°F readout” with “0.5°F increments” — Greater Goods at $89.99, the only page to separate the setting step from the readout
“1% temperature stability” — the Monoprice at $44.99, about ± 1.4 °F at 140 °F, and the only figure here loose enough to be describing water
Nothing — the Anova 2.0 at $117.99, the Anova 3.0 at $169.99, the Anova Pro at $271, the Breville at $149.95
It publishes what four dearer circulators here do not
Range, accuracy, power, bath volume and timer — all five, on one page.
77–210 °F (25–99 °C) · 0.1 °C (0.2 °F) · 1000 W · up to 15 liters · up to 99 hours
Against the four items on this shelf that publish no temperature range at all: the Anova 2.0 at $117.99, the Anova 3.0 at $169.99, the Anova Pro at $271, and the Breville Joule Turbo at $149.95.
Three of those four cost more than this one, and the Breville publishes no number whatsoever — no wattage, no range, no accuracy, no flow, no volume, no warranty.
The range, placed on the shelf:
32–197 °F (0–92 °C) — the Anova Nano at $68.28
41–212 °F (5–100 °C) — the Monoprice at $44.99
68–203 °F (20–95 °C) — Greater Goods at $89.99
77–210 °F (25–99 °C) — this
104–194 °F (40–90 °C) — all five KitchenBoss units
The ceiling is the second highest here, behind the Monoprice’s 212 °F. Nothing in sous vide needs more than about 185 °F — the hottest ordinary temperature, for root vegetables and long-held tough cuts — so the top end is about using a circulator as a general water bath: blanching, holding stock, reheating sealed food fast, infusing.
The floor at 77 °F is the highest here except the KitchenBoss 104 °F — and it matters less than it looks, because a circulator cannot cool water. A floor below room temperature is unreachable by definition, which is what makes the Anova Nano’s 32 °F and the Monoprice’s 41 °F decorative.
1000 W places it second lowest on the shelf, above only the 800 W Monoprice at $44.99, and below the 1100 W of the five KitchenBoss units, Greater Goods and the Anova 3.0, and the 1200 W of the Anova Pro.
What wattage buys is heat-up time and nothing else. Once a bath is at temperature, holding it takes a fraction of the rating — the heater cycles, and what it is making up is evaporation from the surface and conduction through the walls.
Which is why the biggest bath claim on this shelf is really a claim about a lid. The Anova Pro at $271: “able to heat up to 100L of water when in a covered container.” 1200 W into 100 liters is about 0.17 °C a minute at best — six hours from cold to 65 °C.
15 liters on 1000 W is the realistic version of the same arithmetic, and it matches the Greater Goods figure exactly.
The practical shortcut no page on this shelf mentions: fill it from the hot tap. A domestic hot supply often sits at 120 to 140 °F, which is most of the way to a steak temperature and turns the whole power difference across this shelf into a rounding error.
WiFi, on 2.4 GHz only
“Once connected to your 2.4GHz WiFi network via the INKBIRD app, you can monitor the temperature, adjust settings, and start or stop your cook from anywhere”
Nine items on this shelf have an app.
The four Anovas — free for time and temperature, $1.99 a month or $9.99 a year for the recipe library and your own cook history, which is the only recurring cost disclosed anywhere here
Four KitchenBoss units — the G330 at $169.99, the G322PT at $129.99, the G320PS at $159.99, the G310PS at $112.52, all free
This one — free
And the Breville Joule Turbo at $149.95, where the app is not optional: its headline Turbo feature is “powered by complex algorithms and powerful cloud computing”
2.4 GHz only is the normal arrangement and worth knowing about. It is the band with the range and the wall penetration; the 5 GHz band is faster and shorter. For a device sending a temperature reading, 2.4 GHz is the correct choice — and the practical catch is that a combined-band router advertising one name can make a 2.4-only device hard to pair.
One item on this shelf publishes dual band: the Anova 3.0 at $169.99 — “We upgraded to use dual band WiFi for improved connectivity.”
“Start or stop your cook from anywhere” is the claim to think about. Starting a bath remotely is useful: come home to water already at 135 °F. Stopping one remotely is not, because the food is still in it — and a bath that stops holding temperature with food in it is a food-safety problem rather than a saved dinner.
What remote monitoring actually tells you is that the water is still the temperature you set it to, which is the one thing a thermostat is for.
Which is why the opposite position on this shelf is coherent. Greater Goods at $89.99 puts “No App or WiFi Needed” in its product title — “no app, Wi-Fi, Bluetooth, accounts, or pairing required” — and the KitchenBoss G322PT at $129.99 takes the middle: “this WiFi-enabled sous vide cooker does not require mandatory WiFi or APP for basic operation.”
This page does not say whether it works without the app. The LCD touchscreen implies it does — bullet three has you setting temperature and time on it — and the page never states it.
And the printed guide is the thing that survives the app. “The included easy-to-follow free recipe guide” — against the Anovas’ $9.99 a year, and alongside the cookbook in the container kit at $54.99 and the 25 chef recipes printed on four KitchenBoss screens.
Ninety-nine hours, which is the specification the technique is for
“Set precise cooking times up to 99 hours with the clear LCD touchscreen”
Three items on this shelf publish a timer range.
1 minute to 99 hours, with an audible alert and an overtime counter — Greater Goods at $89.99
Up to 99 hours — this
Up to 99 hours 59 minutes — the KitchenBoss G330 at $169.99
Not published — the other eleven
Why it is the figure that matters. Sous vide’s whole advantage is that time stops being critical — a steak at 131 °F is done in an hour and still a steak at four.
But the long cooks are the reason to own one. Brisket at 155 °F for 24 to 36 hours. Short ribs for 48. Tough cuts for 72. A timer that topped out at 24 hours would make all of those manual.
What a timer on a sous vide cooker actually does at zero is the thing only Greater Goods explains: “an audible alert sounds while the cooker holds temperature and an overtime counter tracks every minute beyond the timer.”
It does not switch off — correctly, because switching off a bath with food in it is a food-safety problem. This page does not state the behavior, and twelve of fourteen here do not.
And over 99 hours the thing that ends a cook is not the timer. It is evaporation. An uncovered bath loses water steadily, and below the circulator’s intake it stops circulating.
Greater Goods at $89.99 is the only page here to publish the behavior: “if water runs low, heating stops as the status light turns red; simply refill and reconfirm your settings to continue.”
Every circulator here has that cutout — it is a safety requirement rather than a feature — and only one page tells you what it does. The real answer is a cover, which is why the container kit at $54.99 exists and why the Anova Pro’s 100-liter claim is qualified “when in a covered container.”
What is not published
No flow rate. Four items on this shelf publish one: 20 L/min on three KitchenBoss units, 16 L/min on the other two, 8.5 L/min on the Monoprice at $44.99, 8 L/min on the Anova 2.0 at $117.99. “Maintains an even temperature for up to 15 liters” is this page’s claim, and flow is the figure that decides whether a 15-liter bath is actually even.
No waterproof rating. Six items on this shelf publish IPX7 — all five KitchenBoss units and the Anova Pro at $271 — and on five of those pages it is used for one purpose: you can wash the whole thing. The Anova 2.0 at $117.99 manages “water resistant for when accidents happen”, which is not a rating. This page says nothing — on a device that spends its working life half-submerged in a hot bath that has had bags of fat in it.
No removable housing. Four items here have one, and it is the better answer than an immersion rating because it keeps the electronics dry and puts the dirty part in a dishwasher. Greater Goods at $89.99 — “a removable, dishwasher-safe stainless-steel housing” · the Anova 3.0 at $169.99 — a removable stainless skirt, dishwasher safe · the KitchenBoss G322PT at $129.99 — “the detachable sleeve is dishwasher safe” · the G320PS at $159.99 and G310PS at $112.52 — a removable stainless sleeve.
No weight. This and the KitchenBoss G310PS at $112.52 are the only two items on this shelf with no catalog weight — the rest run from 771 g (the Anova Nano) to 1901 g (the container kit).
No motor type. The page claims under 40 dB and does not say what makes it — where six items name a brushless DC motor without giving a figure.
No minimum water depth, which nothing on this shelf publishes, and this is the second longest body here at 410 mm.
No warranty. One item on this shelf publishes one: Greater Goods at $89.99, “5-year coverage” with a “St. Louis-based support team”. Thirteen publish nothing — and bullet five of this page promises “consistent, accurate cooking for years” without a term behind it.
No bag sealing. Not at least one of the eighteen items here is or includes a vacuum sealer. Bullet six names “a sealed bag or glass jar” and leaves the sealing to you — which is the honest version, and the jar suggestion is the only alternative method anyone on this shelf offers.
No cord length, which no item on this shelf publishes.
Availability
Read on the day this page was built: $96 at the American Amazon shop.
Read from Keepa on the day this page was last revised; stock and price both move without notice.
Prices quoted in this text were read on 2026-10-05. The live price is at the top of the page.
