CHI
CHI Original 1" Ceramic Hairstyling Iron
$100Cheaper
Best Hair Straighteners · head-to-head
A sourced, side-by-side comparison. CHI Original 1" Ceramic Hairstyling Iron is cheaper at $100. Every spec and price links to its source.
CHI
$100Cheaper
Bio Ionic
$262
Released 2025
On the specs we track, they're closely matched. The CHI Original 1" Ceramic Hairstyling Iron is the cheaper at $100.
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✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | | |
|---|---|---|
| US price | $100 MSRP per chi.com | $262 Retail, bioionic.com and Ulta |
| Brand | CHI | Bio Ionic |
| Released | — | 2025 |
| Plate material | Ceramic | Volcanic mineral-infused BioCeramic |
| Plate width (in) | 1 | 1 |
| Max temp f | 392 | 450 |
| Cordless | No | No |
| Dual voltage | Yes | Yes |
| Heat settings | 1 | — |
| Auto shutoff | No | Yes |
| Release | — | 2025 |
Sources — CHI Original 1" Ceramic Hairstyling Iron: chi.com (verified 2026-06-15). Bio Ionic 10X Pro Styling Iron 1": bioionic.com (verified 2026-06-15).
Where the two actually differ on the specs we track (3 of 7). Matching specs are omitted.
Sourced tester consensus for each — the "what people who used it think" layer, not just specs.
No sourced tester review yet.
Only one whitelisted tester, Wirecutter, hands-on panel-tested this exact model. It landed as an also-ran alternative: praised for precise, root-reaching tapered plates and a comfortable barrel, but flagged as expensive (about $200 over its budget winner) with a fingerprint-prone matte finish. Reviewed covered a different Bio Ionic and did not test it; Real Homes omitted it. (1 sourced review, 1 lab-tested.)
Praised: Tapered, angled 1-inch ceramic plates straighten precisely and reach into the roots while still gripping larger sections; Thin barrel is comfortable to hold and the matte casing feels luxe with a bit more heat protection than rivals; Vibration mode let several testers finish in far fewer passes without any snagging or grabbing.
Flagged: Expensive; testers doubted the extras justified roughly $200 over the budget winner; Matte finish is prone to stubborn greasy fingerprints after use with styling products; Vibration mode is unintuitive and initially confused panel testers.