Anova 3.0 vs Instant Pot Accu Slim V2: which circulator to buy

Both of these circulators are named in one TechGearLab roundup, tested together in the same table, and that makes the comparison easier than most. The lab calls Instant's unit the "Instant Pot Accu Slim 800W V2"; we match it to model ASSV1000 by the 800 W rating and the V2 label (E·03, E·08). The Anova Precision Cooker 3.0 heated 9.5 quarts to 147°F in 36 minutes. The Accu Slim V2 took 46 (E·08). The Anova mixed a dye through the tank in 10 seconds, the V2 in 35 (E·11, E·20). Both held a steady bath once at temperature (E·10, E·19).

Most of the measurements here come from that one lab, so they are one source's view, not two confirmations. Everything else comes from the makers: Anova's product and plan pages and quick start guide, and Instant's listing and getting-started guide (E·01, E·02, E·03, E·06, E·07). We didn't run a bath ourselves. Each machine has its own write-up, the Anova Precision Cooker 3.0 review and the Instant Pot Accu Slim V2 review, and this piece lines them up on the questions where choosing one costs you something.

The short table

Values from the makers' pages and guides and from TechGearLab (E·01, E·02, E·03, E·04, E·06, E·08, E·10, E·11, E·12, E·13, E·14, E·15, E·19, E·20, E·21, E·22). No column carries a winner flag: the measured rows lean to the Anova, the V2's one lead is a one-hand clamp, and the sound rows are a blank on both sides. Dollar figures are left out on purpose; check each store for today's price.

Heating and mixing: the gap is real, and so is the asterisk

The 10-minute heat-up gap, 36 against 46, is the biggest measured difference between the two (E·08). The Anova has 1100 watts to the V2's 800, and the same lab's table shows watts alone don't order the field, so read the watts as context and the minutes as the finding (E·01, E·03, E·08). Here is the asterisk: the lab says its Anova run started from 50-degree tap water, and the roundup row for the V2 gives no starting temperature (E·09, E·08). The gap is same lab, same table, same bath size, but not a documented identical start.

Mixing is the wider gap in relative terms. Ten seconds for the Anova against 35 for the V2 in the dye test (E·11, E·20). That number says how quickly a 9.5-quart tank evens out, and the lab's reading of the V2's temperature log (no fluctuations at all) says the slower mixing didn't cost it stability here (E·10, E·11).

For a steak in a stockpot, neither gap matters much. Instant's own guide suggests heating the water in a kettle first, which works on any circulator and helps the slower one most (E·03, E·04). If you fill a big tub from the cold tap, the Anova's lead is a ten-minute head start.

Holding the setpoint

The lab reports the Anova at a 0.06-degree average discrepancy and the V2 at about 0.19°F over the set temperatures, with no fluctuation in its loggers (E·10, E·19). Both are small. At 0.19°F you would need a recipe built on a knife edge to see it, and the lab's egg test is the closest thing to that: the V2 cooked the most runny egg of the seven units, though the lab calls the result surprising because the V2 was set a half degree high (E·12). The V2 can only be set to a whole degree. The Anova accepts half-degree steps on the device and tenths in the app (E·21). So if your recipes live at 144.5°F, only one of these can be set to it (E·12, E·21).

One caution on both numbers: each is a single retail unit, and the Anova's is reported without a sign (E·10, E·19).

Timers: the 4-hour default and the auto-start

The lab lists the same irritation for both machines: the timer starts itself when the bath reaches setpoint (E·13). It describes the consequence only for the Anova, where a tester says you have to go back and reset the timer because the food goes in after the bath is at temperature. For the V2 the lab lists the auto-start and says no more (E·13).

The V2 adds something its box does not advertise. Per the getting-started guide, power-on shows a default of 04:00, the countdown starts at setpoint, and when it reaches zero the display shows End (E·03, E·04). The guide documents no mode without a countdown, so a cook left on the default ends about four hours after the water gets to temperature. You can set up to 72 hours before pressing Start, or extend the time mid-cook, but Start/Stop returns everything to defaults (E·03, E·04). We read that last part as a trap for brisket and a non-issue for a steak, and that is our inference from the guide, not an incident report (E·04).

For the Anova we can say less. The quick start guide shows how to set a time and says nothing about a default or about what happens when the timer ends (E·06). That could mean there is no default countdown, or that the guide is too short to say. If you plan 24-hour cooks, the V2's behavior is documented and manageable, and the Anova's is a question to check against its app before you rely on it.

Sound: three kinds of evidence, none comparable

Instant's product page calls the V2's motor quiet (E·02). That is marketing copy: no meter, no distance, no decibel figure. Anova's page gives no sound statement at all (E·01). TechGearLab flags noise when it hears it, saying the Nano 3.0 was among the loudest in operation, and the roundup carries no sound remark about either of these two (E·15). A lab's silence is not a measurement of quiet.

What owners say doesn't settle it either. One customer on Anova's page says the 3.0 is noisier than its predecessor, which compares it to an older Anova and not to the Instant Pot (E·16). In August 2026 an owner posted a 70 dB reading from a new 3.0 warming up, then found the sound came from a battery backup the cooker was plugged into (E·17). The meter read the room, not the cooker.

The one sound table we found, from Amazing Food Made Easy, used a RadioShack meter in a room it puts at about 50 dB and says it lacks the rigor for a scientific journal (E·18). It lists neither the 3.0 nor a V2. Its Instant Pot rows are an Accu SV800 and an unlabeled Accu Slim Circulator, both within a few decibels of the room (E·18). We don't carry those numbers across to the V2. Sound is a tie, and the tie is for lack of evidence.

Controls, the clamp and the app

Both have full controls on the device (E·01, E·05). From there they part. The V2 has no app control, account or WiFi in its listing or guide, which is an absence we observed, not a line Instant wrote (E·02, E·05). The guide's page 10 does point to an Instant recipe app with 1000+ recipes, which is a recipe library, not a remote control (E·05). The Anova offers WiFi and an app as an extra step, and states that its devices work without a subscription (E·01, E·06, E·07).

Anova's current plan table puts remote temperature control, remote time control, cook progress monitoring and start/stop cooking remotely in both its free column and Premium. The 1,000-plus recipe library, cook history, push notifications and advanced cook notifications are marked only under Premium (E·07). Our Anova subscription guide walks the history. One customer review on the 3.0 page says the app wouldn't connect away from the home network, so how remote control behaves in practice is a matter for the app, not the table (E·07).

The clamp is the V2's one clear design win if you want speed: one hand, fixed spring clamp (E·14). It is also fixed, so a thick-walled pot is a risk, and the lab gives no gap measurement for it. The Anova's clamp is adjustable with a 1.4-inch gap and a knob that spins easily and locks securely (E·14, E·22).

Protection and warranty

The Anova has a 65 mm low-water shutoff, an IPX7 rating and a 2-year warranty (E·01). The V2 stops with an E1 code when water falls below MIN; the guide's remedy is to turn the device off, add water and turn it on again, says the unit is waterproof against accidental submersion but gives no IP rating, and carries a 1-year warranty (E·02, E·05). The V2's maker page also says it stops automatically when removed from water (E·02). We have no failure-rate evidence for either machine, so durability is not a row in this comparison.

What would change this

• A decibel reading for each machine from one source, at a stated distance, with the room's background level and water level documented. That would turn the sound rows from words into numbers (E·02, E·15, E·18).
• A lab or maker statement of what the Anova does when its timer ends or is left unset. It would settle the long-cook question for the Anova (E·06).
• A heat-up run for both units from the same starting water temperature, which would remove the asterisk on the 36 against 46 (E·08, E·09).
• A second sign-bearing accuracy measurement for the Anova, or a multi-unit read for either (E·10, E·19).
• A change in Anova's plan table that moves remote control behind Premium, or the unified app Anova's page says is coming in 2026 (E·07).

The numbers that decide this come from one lab on one retail unit of each machine, and the V2 guide is an image-only PDF we read page by page, so its entries are as we transcribed them (E·03, E·08, E·10). If a long unattended cook or a measured quiet machine is the point of your purchase, the Greater Goods comparison and the circulator guide cover other routes.