# Shark FlexStyle Next-Gen IonCurl 5-in-1 Hair Styler HD840

Styler: Shark FlexStyle Next-Gen IonCurl HD840 combines a hair dryer with interchangeable styling attachments, including auto-wrap curlers, a smoothing polisher, oval brush and concentrator. Its listing describes four heat levels up to 203°F and a Scalp Shield mode, customers report positive results for effectiveness and hair feel, but mixed drying-time experiences.

- [Original product page](https://best-deals.pro/product/shark-flexstyle-next-gen-ioncurl-hd840)
- [View offer](https://best-deals.pro/visit/shark-flexstyle-next-gen-ioncurl-hd840)
- Market: US
- Language: en-US
- Currency: USD
- Brand: Shark
- Model: HD840
- Category: Beauty & Health > Personal Care Appliances > Hair Straighteners & Stylers
- Price: 249.00 USD
- Previous price: 349.99 USD
- Discount: 29%
- Price checked: 2026-11-11T06:48:05.140Z
- Rating: 4.6 / 5
- Reviews: 161

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## At a glance

- Interchangeable attachments support drying, curling and smoothing with one tool.
- Two auto-wrap barrels curl in opposite directions, as described in the listing.
- The AirSet button can pause airflow or provide a cool-air burst.
- Scalp Shield mode and four heat levels offer options for adjusting heat while styling.

## Pros

- The included set combines two auto-wrap curlers with a polisher, oval brush and concentrator.
- The left and right curlers are designed to wrap in opposite directions, reducing the need to manually wind hair around the barrel.
- The listed 1.5-pound weight may suit buyers who prefer a lighter styling tool.

## Cons

- The supplied attachment set does not include the separately listed compatible diffuser, wide-tooth comb, round brush or paddle brush.

## Specifications

### Identity
- Brand: SharkNinja
- Model: HD840
### Dimensions and installation
- Dimensions listed: 1.49 x 1.49 x 1.49 inches; 1.5 pounds
- Power: 1,700-watt motor
- Cord length: 8-foot cord
### Heat and airflow
- Heat settings: 4 heat levels up to 203°F
- Scalp Shield mode: Activate to instantly drop to a cooler, scalp-safe setting
- AirSet button: Double-tap to pause airflow mid-style or hold down for a burst of cool air that locks your look in place.
### Included styling attachments
- Curlers: \(2\) 1.25in Coanda Auto-Wrap Curlers
- Finishing attachment: FrizzFighter High Shine Polisher
- Brush: Oval Brush
- Dryer attachment: Styling Concentrator
### Compatible extra attachments
- Optional attachments: Curl-Defining Diffuser, Wide-Tooth Comb, Round Brush, and Paddle Brush.
- Warranty: 2-year limited warranty

## Before you buy

- The listing alternately calls this a 5-in-1 tool and describes it as 4-in-1, treat both as listing labels rather than a settled count of functions. It claims styling without heat damage while also listing four heat levels up to 203°F and describing a cooler Scalp Shield setting, those are manufacturer claims, not independently confirmed outcomes. The listed dimensions combine three measurements with weight, so the exact dimension format is unclear.

## A good fit for

- Shoppers seeking a dryer and multi-styler with auto-wrap curling barrels and smoothing attachments in one kit.
- People with straight, wavy, curly or coily hair who want to choose among the listed brush, concentrator and curling attachments.

## Less suited to

- Buyers who need a diffuser or comb included in the selected kit.
- Anyone looking for independently verified claims about heat damage, drying speed or lasting results.

## Customer feedback

Customer feedback is positive about effectiveness and smoother, healthier-feeling hair, while reports of drying time are mixed: some describe fast drying, others say results do not last even a day. Opinions also differ on value. The 4.6 out of 5 rating across 161 global ratings is favorable overall, but does not resolve those differences or establish how well the listed styling claims will suit a particular hair type.
- Positive themes: Customers describe the styler as effective and say their hair feels smoother and healthier.
- Mixed feedback: Customers disagree about drying time, with reports ranging from very fast drying to results that do not last a day.
- Mixed feedback: Customers differ on whether the product is worth the money.

## Frequently asked questions

### Which attachments are listed as included?
The listing names two 1.25in Coanda Auto-Wrap Curlers, a FrizzFighter High Shine Polisher, an Oval Brush and a Styling Concentrator.
### Are the diffuser and comb included?
No. They are listed as compatible extra attachments, not among the stated included attachments.
### What does the AirSet button do?
The listing says double-tapping pauses airflow mid-style, while holding the button provides a burst of cool air.
### What does Scalp Shield mode offer?
The listing describes it as switching to a cooler setting and separately lists four heat levels up to 203°F. These are manufacturer descriptions, not independent performance verification.

## Alternative options

- [Shark FlexStyle, Air Multi-Styler & Drying System, Coanda, Black, HD440BK \| No Heat Damage, One Twist Between Dryer & Styler, 4 Heat/3 Airflow Settings, Cool Shot](https://best-deals.pro/visit/shark-flexstyle-next-gen-ioncurl-hd840)
- [Shark FlexStyle Air Styling & Drying System, Blush, HD431PK2 \| No Heat Damage, One Twist between Dryer & Styler, 4 Heat/3 Airflow Settings, Cool Shot](https://best-deals.pro/visit/shark-flexstyle-next-gen-ioncurl-hd840)
- [Shark FlexStyle FrizzFighter Finishing Tool HD450TLREF Limited Edition Gift Set Flex Style Hair Dryer Air Styling & Drying System - Teal \(Renewed\)](https://best-deals.pro/visit/shark-flexstyle-next-gen-ioncurl-hd840)
- [Shark FlexFusion Ceramic Air Styler, Straightener, Metallic Mist, HD651S \| Style-Safe Tech: Zero Hot Tool Damage, Scalp Shield Mode, Straightens in One Pass](https://best-deals.pro/visit/shark-flexfusion-ceramic-air-styler-hd651s)
- [Shark SpeedStyle Pro Flex Dryer, Scalp Shield, Bag, Lilac, HD543PL \| Foldable, Compact, 0-100 MPH Airflow, Turbo Concentrator & Diffuser Included, High-Gloss Shine](https://best-deals.pro/visit/shark-speedstyle-pro-flex-hair-dryer-hd543pl)
- [Shark FlexStyle Glam, Ceramic+Powerful Air Styling & Drying System, HD6051S \| Silki Straightener + Glossi Air Glosser, Gloss Lock 24-Hr Shine, Scalp Shield Mode](https://best-deals.pro/visit/shark-flexstyle-next-gen-ioncurl-hd840)

## Add-ons

- [Leudes Hair Dryer Tools Travel Bag for Shark Flex Style Case Air Wrap \| Hot Tool Organizer for Dyson Airwrap Flex Fusion Brush Flat Curling Iron Straightener Attachment Travel Essentials for Women](https://best-deals.pro/visit/shark-flexstyle-next-gen-ioncurl-hd840)

## Images

![Shark FlexStyle Next-Gen IonCurl 5-in-1 Hair Styler HD840 — 1](https://best-deals.pro/i/kGezrAASNyMsoAkPl8GqN6QKqS1MFbPbdRck9RhCfpRwUlqV968weSY_ojPIqbngF0g91yh_8lhBaDjBCYbiEcIMCLaf68Y4fWyGy26mQoAh0-z_Jf4ROpT1.jpg)

![Shark FlexStyle Next-Gen IonCurl 5-in-1 Hair Styler HD840 — 2](https://best-deals.pro/i/bLiFUlfH3CCNv15BhMu3Pg0LGCxc3UCIxAmRGeNjpyc8ZF_6VruAlajgKz-GZl_7Vqc8P75UszV2LiaJc41GdwKegXVH6C_XM22vClFw2Dub8PLB3rfdJf01.jpg)

![Shark FlexStyle Next-Gen IonCurl 5-in-1 Hair Styler HD840 — 3](https://best-deals.pro/i/3tjzY5FWVkd5pZZeVw3R7T39jZZDIqct3NbQnv72zhqs3UaL9HZzxQPXvKGcQrc0gmc8CEtJm7no9O7Xdkq1omsFoMW7xHP95EceOHn24K2GwNkaV6zBR-Lf.jpg)

![Shark FlexStyle Next-Gen IonCurl 5-in-1 Hair Styler HD840 — 4](https://best-deals.pro/i/MmsA1zhAiVwVkoW3-7jXqecDOizT27eviJ-TMpmxNaokXVDqv9dbT3-22A4EB0YbfXH4aOLyLclfYtqMq1x9f9-dYp-mWYMqC9wiegpmnL2oi70y1hdftBhP.jpg)

![Shark FlexStyle Next-Gen IonCurl 5-in-1 Hair Styler HD840 — 5](https://best-deals.pro/i/UUt8o1Ien0CBOe-gpFaZ_boqPe2WWlFGPaxIcyJWdOdO1s2if-qpz9reoVLra1McfLCoJc55hheQ2afk0jxCVBAwzI0YWY8mKQ0nx2tqiN8wTaiSq0cj3dKK.jpg)

![Shark FlexStyle Next-Gen IonCurl 5-in-1 Hair Styler HD840 — 6](https://best-deals.pro/i/F5Hfzxn6WKxR1F9W8LS5KGSao2zvA7JD3L-VWuYlWu8071uTo8FvhJPP1a2E6vh7BmiBADZdO_3mpK1ZTR4xtDSNQcR44WkUYU-ZSXN7YwH7QjqwSVplYqBO.jpg)

![Shark FlexStyle Next-Gen IonCurl 5-in-1 Hair Styler HD840 — 7](https://best-deals.pro/i/OkcBhHVD3pzj1-bR6U2yCucaCCXnjGt-7gSPM99-lMWQs7h2lSNAzT3nN2F1OKYKkIWLtTp9cipqGDaVYyOAx47ZGO9johju-wJQrd7eJzYvq2yfLypzkXOB.jpg)