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Add up to 3 clear aligner providers in the UK to see them side by side. Details come from our reviews; open a review for sources and the full picture.
| Detail | Straight Teeth Direct | Smileie | |
|---|---|---|---|
| Treatment | |||
| ApproachA scan records your teeth; it is not a dental examination. | Home kit Remote check-ins | Dental exam In-person and remote check-ins | |
| How it startsAn impression kit or a scan records the teeth. Check whether a dentist examines you in person. | Free e-consultation, then a £69 SmileBox for home impressions, then the £1,790 StraightBox after you see the plan. | Online screening, then an in-person examination at one of 23 partner locations listed on its website. | |
| Check-ins and monitoring | Remote photo screening and monthly photos in the app. The public pages do not explain where a physical examination takes place. | In person before aligners are prescribed. Later check-ins can be remote. | |
| Who plans and supervises | Unnamed dentist for the first photos, then an assigned dentist or orthodontist who plans and monitors treatment. No GDC number is published. | The examining dentist at the partner practice is responsible for your clinical care. | |
| Cost | |||
| Treatment priceCheck whether a price covers one arch or both, and what it includes. | Listed price£1,859 For both arches. Includes £69 for the SmileBox impression kit and plan. Checked 26 October 2026 | Set after examination£1,599 to £2,899 Both-arch packages run from £1,599 (homepage, mild) to £2,899 (complex). For a mild case Smileie's pages show £1,599, £1,799 or £1,899; confirm the total after the examination. Checked 27 October 2026 | |
| Paying monthly | Three instalments: £1,887 in total, or £1,956 with the SmileBox impression kit and plan In-house monthly: £1,931 in total, or £2,000 with the SmileBox impression kit and plan Totals are calculated from the published payments. | Not confirmed | |
| Aftercare | |||
| Retainers | One removable set included. Annual retainer plan £239 in year one, then £179 a year. A fixed retainer is not included. | Two retainer sets are listed with both packages. | |
| RefinementsConditions often apply. The review has the detail. | The pricing page includes one round if your dentist prescribes it; the FAQ says all extra aligners are covered. Lost or broken aligners are replaced. | Further aligners may be offered if the dentist considers them clinically appropriate and the package terms are met. | |
| Our review | |||
| Still to confirm | Named prescribing clinician, and where a physical clinical examination takes place. Whether refinements are limited to one round (pricing page) or unlimited (FAQ). Humm APR and total repayable. Whether a 3D scan can still be booked. The refund page still mentions a £79 scan deduction. | Nothing specific flagged; other details may still be unconfirmed | |
| Full review | Updated 26 October 2026 Read the Straight Teeth Direct review | Updated 26 October 2026 Read the Smileie review |
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In alphabetical order. This is not a ranking.
Reviewed but not available to compare
- Diamond Whites Impress acquired Diamond Whites, and new cases are now quoted at an Impress clinic.
- NewSmile Its aligners could not be ordered online when we checked on 27 October 2026: the order button led to a missing page, and the shop listed no aligners.
Who is included. A provider can be compared when we have a current review, new patients can start with it in the UK, and we could confirm how treatment starts and how progress is checked. A missing price never rules a provider out: practice-set fees are shown as practice fees or as a quote. Being listed is not a recommendation.
Providers that have closed, changed or could not be confirmed are listed under Looking for another provider? on the reviews page. Prices and terms change, so confirm them with the provider before you pay.
Not sure where to start? Our guide to the best clear aligners in the UK explains which providers we would look at first, and why.
