Your needs, this model
Does it fit your priorities?
Does the straightening plan fit a 1¼-inch maximum plate width?
Yes. The exact linked S33A guide specifies a 1¼-inch flat-iron plate mode. That number does not describe the separate curling barrel, nor predict personal sectioning comfort.
Explore this need in the finder →Is the flat-iron plate mode adjustable?
Yes. The page lists a five-choice adjustable plate range and the linked manual describes plate-mode plus/minus controls with a 450°F ceiling. The exact page's 355°F lower bound conflicts with the manual's 300°F guidance, so the low end should be checked against the delivered version.
Explore this need in the finder →Can S33A10B-VN be used as a universal-voltage travel straightener?
Not on the evidence reviewed. The linked S33A family booklet states 120 VAC, 60 Hz for TYPE S33A, omits the complete -VN suffix and does not document automatic 120–240 V conversion. Check the delivered appliance label and any plug adapter before travel.
Explore this need in the finder →The Remington ONE S33A10B-VN is not simply a flat iron with rounded edges. Its linked S33A-series booklet describes two distinct heat modes: ceramic plates for flat-iron work and a ceramic barrel for curling. A sliding FlexiCover sleeve selects which surface is active. The exact page calls the tool a flat iron and curler; the manual explains the switching and limitations that matter more than the broad “two-in-one” label. This is source-based research, not a hands-on review or performance test.
Two operating plans, not one blended tool surface
In plate mode, the booklet specifies 1¼-inch ceramic plates and describes straightening on dry, detangled hair. In barrel mode, the sleeve covers the plates and only the barrel heats; the plate heaters turn off. The reverse applies when the tool is set up for straightening. That means the two heating surfaces are alternatives. A matcher should not use the curling barrel’s capability as evidence about plate width or count both as if they were available at once. Changing modes also has a handling step. The guide says the FlexiCover becomes hot and warns that its indicator blinks for two minutes during a change; wait before starting the curling operation to avoid contact burns. The official product page describes easy conversion, but the booklet’s wait instruction is a practical tradeoff worth weighing if switching quickly is central to a routine. The included configuration is one combined tool, not a separate flat iron plus a separate barrel appliance.Heat ranges require a careful read
The exact product page describes adjustable heat from 355°F to 450°F, while the S33A manual says the plate mode permits five temperature choices up to 450°F and gives plate-mode guidance beginning at 300°F. That lower-bound difference is unresolved in the sources. The same manual gives barrel mode its own 410°F maximum. It would be misleading to collapse those statements into one neat “300–450°F” range or to publish the page’s 355°F as a settled full range. The fact record therefore treats the plates as adjustable, retains a 450°F ceiling, and leaves the exact minimum unset. The source’s “up to five” choices and the page’s display are manufacturer specifications, not measurements of the surface temperature. The guide advises choosing a temperature for the hair, testing a small section and avoiding prolonged holds; it instructs straightening only on dry hair. We did not assess styling time, damage, color effects, one-pass performance or temperature stability. The page advertises a 20-second heat-up and three-year limited warranty, but those statements do not resolve the heat-range discrepancy or replace the current manual.Width and comparison with other hybrids
The 1¼-inch plate dimension makes the S33A10B-VN a fit for an inclusive 1.25-inch maximum, but not a one-inch limit. That is a nominal manufacturer/manual dimension, not proof that it will be easy to maneuver near roots or that it will style faster. By contrast, S5777NA and S16A11A are named as nominal one-inch Twist & Curl plate tools. They change styling technique using the same plates, while S33A10B-VN switches which heating surface operates. S9333US is another plate-based twist model with no numeric width in the page/manual pair. Those are meaningful functional differences, not interchangeable color choices. The ONE can be a rational paper choice when both plate straightening and a separate barrel mode would be useful in one appliance. It is less compelling if curling is incidental and the added sleeve, switching instructions and mode-specific heat settings would sit unused. If a basic plate width is the only hard requirement, a simpler 1- or 1.25-inch tool may be easier to compare without also checking a barrel-mode ceiling.Power, version and seller checks
The linked S33A booklet gives 120 VAC, 60 Hz for TYPE S33A and diagrams a swivel cord. The exact retail SKU is S33A10B-VN, however, and that full suffix is not printed on the manual’s electrical line. The source pair does not document universal-voltage conversion or a numeric cable length. For travel, inspect the actual delivered rating plate and confirm that the voltage is supported; separately check the plug shape and adapter. For reach, do not infer a length from the swivel cord or product dimensions. Before purchase, verify the seller’s exact S33A10B-VN code, that the sleeve and tool shown correspond to the advertised package, and that the included instructions match the version delivered. Remington’s current recall page checked for this exact code on November 1, 2026 did not include it in the captured text; that is a dated lookup, not a promise about future notices. The strongest supported reason to consider this model is its distinct plate-and-barrel flexibility. The strongest reasons to pause are the two-minute changeover warning, the unsettled plate lower heat boundary, and the family-level voltage suffix gap.Key specifications
Key details at a glance
| Plate width | 1.25 in |
|---|---|
| User-adjustable heat documented | Yes |
| Manufacturer-listed heat-up time | 20 sec |
| Universal-voltage support stated | No |
| Corded operation | Yes |
| Manufacturer says use on dry hair | Yes |
Use the exact model’s instructions for operating limits, supplied equipment and version differences.
Sources for this review
Sources for this assessment
- Remington official US Flat Irons & Hair Straighteners collection
- Remington official US Multi-Stylers & Hair Wavers collection
- Remington exact US S33A10B-VN ONE Flat Iron & Curler page
- S33A Series Use and Care Guide linked by the exact product page
- Remington Product Recalls & Safety Notices page checked for S33A10B-VN
- Exact S33A10B-VN product page first-gallery image
Check your own fit against the published facts
Use the finder to compare plate width, heat controls, cord and voltage needs. A fit is not a performance guarantee.