The Ariston NIS 642 FB AUS is a 60 cm built-in induction cooktop with four cooking zones, including two Flexizones, and a manufacturer-stated 31.3 A absorbed current. Its listed cutout is 553 × 483 mm, but the exact fit and electrical supply need to be checked against the installation manual and your site. CHOICE labels it a discontinued model; its public listing does not reveal performance scores, so there is not enough public evidence for a measured pass-or-fail verdict.
What the NIS 642 FB AUS offers
Ariston describes the model as a frameless black ceramic-glass induction cooktop with four cooking zones. The front-centre slider controls offer nine power levels plus Boost. Listed features include pan detection, a child safety lock, a timer and a residual heat indicator. Ariston’s product page also lists a five-year warranty; check the applicable terms with the seller or manufacturer before buying.
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- Cooking layout: four zones, arranged as two Flexizones that can be joined for larger cookware.
- Controls: front-centre slider, nine power levels and Boost.
- Safety and convenience: pan detection, child lock, timer and residual heat indication.
Ariston says, “Using the Flexizone you can transform two cooking areas to one large area allowing you to use large pots and pans.” That describes the intended feature; it is not an independent performance test. Check the manual for cookware placement and operating details. Ariston cooking brochure
The Tool Desk
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Ariston’s 2020 specification sheet lists an overall size of 580 × 510 mm and a height of 52 mm, with a 553 × 483 mm built-in opening. CHOICE rounds the overall dimensions to 58 × 51 cm and installation dimensions to 55 × 48 cm. Use the more precise manufacturer figures as a starting point, not as a substitute for checking the actual benchtop and installation instructions.
#1 Best Overall
- PORTABLE INDUCTION BURNER: Duxtop induction cooktop uses 110/120 V 15 amp electrical outlet–standard in all North American homes. ETL listed and built to North American electrical standards. It is lightweight and compact for easy handling and storage
- Choose from 20 preset power levels (100 to 1800 W) and 20 preset temperature level settings (100 °F to 460 °F). With an 83% energy efficiency, induction burner is more efficient than traditional gas or electric stoves
- DIGITAL LCD SENSOR: Touch control panel: child safety lock keeps the cooking and timer settings from being accidentally changed once they have been set; fast boil button; keep warm button (for 1-30 minutes at 140 °F); up to 10-hour timer button
- Induction stoves rely on cookware to heat, so it’s essential to choose magnetic bottom cookware with a minimum diameter of 5 inches. Auto-pan detection will shut off automatically after 60 seconds if no cookware, or the incorrect cookware is detected
- Although induction itself is a noiseless process, there may be high pitched sounds from the cookware due to multiple layers of metals sandwiched together. Please allow the induction cooker to cool down before cleaning
| Measurement | Published figure | Source and qualification |
|---|---|---|
| Overall width × depth | 580 × 510 mm | Ariston/Arisit 2020 specification sheet |
| Height | 52 mm | Ariston/Arisit 2020 specification sheet |
| Built-in opening | 553 × 483 mm | Ariston/Arisit 2020 specification sheet; verify against the manual and site conditions |
| CHOICE dimensions | 58 × 51 cm overall; 55 × 48 cm installation | CHOICE public listing; rounded dimensions |
Before ordering, compare the benchtop opening and surrounding clearances with the official instruction manual. The manual includes ventilation and clearance requirements and warns against obstructing them. It also advises against installation above a dishwasher or washing machine because steam or moisture can damage the electronics. Site-specific fit should be confirmed by a qualified installer.
Electrical supply and installation
The 2020 specification sheet states an absorbed current of 31.3 A and connection options of 220–230 V or 380–400 V at 50 Hz. CHOICE lists maximum capacity as 7.2 kW; its public page does not identify a test year, and this is a listing specification rather than an independent comparative result. These figures are not a do-it-yourself wiring guide: supply suitability and installation must be confirmed by a qualified professional.
Rank #2
- HIGH EFFICIENTY AND NO HOT KITCHEN - ChangBERT induction cooktop offers 9 preset power levels (200-1800W) and 18 preset temperature settings (120-460℉). transfers energy directly to magnetic cookware, heating the cookware itself rather than the surface for up to 83% energy efficiency. This direct heating method is more efficient than traditional gas or electric stoves, delivering instant response and stable performance, providing quick heat-up under high-demand kitchen environments.
- CONSISTENTLY STABLE HIGH-POWER WITH ONE-CLICK MAX 1800W POWER BUTTON - This induction burner built for constant use, it features continuous-duty circuitry for non-stop cooking, including an upgraded control board with dual IGBT. The unique power control technology with one-click max power button ensures fast and stable high-power output, reduces the temperature of internal electronics, and facilitates low-noise heat dissipation. This dependable performance sets it apart from others.
- LARGE COOKING AREA WITH 8-INCH HEATING COIL ENSURES PRECISE TEMPERATURE CONTROL FOR EVEN COOKING - Features an expanded 8” magnetic coil design that optimizes the winding structure to enhance the transfer of electromagnetic energy directly to the cookware, improving heating efficiency and ensuring more even heat distribution across the bottom of the cookware. This precise temperature control maintains steady heat to handling large cookwares for both professional kitchens and daily cooking.
- NSF CERTIFIED & COMMERCIAL GRADE DURABILITY - UL commercial standard 197, completely ETL & NSF approved. It meets industry durability standards, passing a drop test with an impact of 1.5 ft lbs. This cooker designed for large-volume usage, it is ideal for commercial and professional settings such as restaurants, hotel buffets, food trucks, institutional kitchens and catering services, while also perfect for large-volume usage.
- ENHANCED VERSION FOR BETTER PROFESSIONAL & CONVENIENT COOKING EXPERIENCE - Enhanced version equipped dedicated one-click buttons allow instant access to key functions, reducing steps during busy cooking. The extended 12-hour timer supports long simmering and unattended cooking with confidence. A large dual digital display clearly shows power or temperature and timer at the same time, easy to read in all lighting conditions and angles. Every upgrade delivers smoother operation for daily cooking.
Ariston’s manual says installation must be performed by qualified personnel familiar with current safety and installation regulations, and that the appliance must be disconnected from power before installation work. Ask an electrician or qualified installer to check your home’s supply and the model’s requirements before purchase or installation.
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Is the NIS 642 FB AUS any good?
The available evidence supports a feature-and-fit assessment, not a measured performance verdict. CHOICE’s public page lists the model as discontinued and describes its four-zone arrangement, maximum capacity, dimensions and warranty. Its ease-of-use, heat-control, boil-time, reliability, satisfaction and other results are not visible publicly. There is therefore no public CHOICE score here that can establish how well this cooktop performs against alternatives.
Rank #3
- High Efficiency & Rapid Heating: 1800W induction heating transfers energy directly to compatible cookware for fast boiling and responsive temperature changes. The 6.8-inch induction coil ensures even heat and consistent cooking results.
- Precise Temperature Control: Features 20 power levels (P1–P20) and 20 Preset Temperature Levels from 120°F to 465°F for precise control. Easily adjust to your cooking needs—from gentle simmering to high-heat searing.
- Smart Preset Cooking Modes: Electric single burner includes 4 preset functions: Boil, Hot Pot, Stew, and Keep Warm. Designed with a responsive touch panel that simplifies operation and helps achieve consistent, delicious meals.
- Safe & Convenient Design: Equipped with child safety lock, residual heat indicator, and 4-hour timer for peace of mind. Compact and lightweight (under 5kg), easy to store, low noise, ideal for small spaces or outdoor use.
- Reliable Support: Our support team is always available to help with any questions or issues, ensuring a worry-free cooking experience.
On paper, the two Flexizones may suit households that regularly use larger cookware, while the four-zone arrangement offers flexibility for multiple pans. Whether that layout works for your pans depends on their size, shape and placement. Assess the control arrangement and safety features against your own needs, and seek accessible independent test results rather than assuming that the specifications prove cooking speed, heat control or reliability.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Is it discontinued, and can you still buy one?
CHOICE labels the NIS 642 FB AUS a “Discontinued model.” Ariston Australia’s product page remains accessible and shows a “Buy Online Now” section, but neither fact confirms that a retailer has stock available now. Availability can vary by seller; check the listing directly before making plans to purchase.
Rank #4
- HIGH EFFICIENCY - ChangBERT Induction cooktop offers 9 preset power levels (200-1800W) and 18 preset temperature settings (120-460℉, 20F per level). With an 83% energy efficiency rating, the induction cooker is more efficient than traditional gas or electric stoves, providing quick heat-up and faster cooking times.
- CONSISTENTLY STABLE HIGH-POWER OUTPUT - Built for constant use, it features continuous-duty circuitry for non-stop cooking. The unique power control technology ensures stable high-power output, reduces the temperature of internal electronics, and facilitates low-noise heat dissipation, providing reliable cooking performance. This dependable performance sets it apart from others.
- LARGE COOKING AREA - Features an expanded magnetic coil design that optimizes the winding structure to enhance the transfer of electromagnetic energy directly to the cookware, significantly improving heating efficiency and ensuring more even heat distribution across the bottom of the cookware.
- NSF CERTIFIED & COMMERCIAL GRADE - UL commercial standard 197, completely ETL & NSF approved. It meets industry durability standards, passing a drop test with an impact of 1.5 ft lbs. Designed for large-volume usage, it is ideal for commercial and professional settings such as restaurants, industrial kitchens, and other catering services.
- EASY TO CONTROL & CLEAN - The control buttons with solid tactile response make operation intuitive and precise.With simple and clear display, the Key-Press-Control Panel provides clear visibility and easy control, even with gloves or wet hands. With no open flame or heating element, food does not burn onto the glass cooktop, making it easy to clean greasy dirt.
Before paying, confirm that the listing is for the exact NIS 642 FB AUS model, whether the unit is new or used, what warranty applies, and whether the seller can support service or returns. Ariston’s product page and the CHOICE listing both state a five-year warranty, but current coverage and conditions should be verified for the particular sale.
What to check before choosing it
- Measure the existing cutout and compare it with the manufacturer’s installation dimensions and manual.
- Have a qualified professional confirm the electrical supply and installation requirements.
- Consider whether two Flexizones suit the larger pans you actually use.
- Verify the exact model, live stock, product condition, warranty terms and service arrangements with the seller.
- Look for independent performance data you can access; the public CHOICE listing does not show its test results.
Sources: Ariston Australia product page; Ariston Australia / Arisit 2020 specification sheet; Ariston Australia instruction manual; CHOICE review listing.
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