References

This page lists every source cited on this site.^[1] Each entry links to the original page and to the Internet Archive: "Archived" opens the most recent saved copy, and "Save to archive" asks the Wayback Machine to capture the page now. Retrieval dates are the dates on which this site's editors last read the source. Individual article pages list only the sources cited on that page.

Apple's newsroom release, product page and specification sheet are treated as primary sources for what Apple claims.^[1][2][3] Press reports are used for context, for facts Apple has not published, and for reception. Posts on X are cited only in the reception sections and only for what the named account said. The About page explains the evidence labels that mark where a claim comes from.

1. "Apple unveils iPhone Duo". Apple Newsroom. 9 September 2026. Retrieved 10 September 2026. Archived copy · Save to archive.
2. "iPhone Duo". Apple. 9 September 2026. Retrieved 10 September 2026. Archived copy · Save to archive.
3. "iPhone Duo – Technical Specifications". Apple. 9 September 2026. Retrieved 10 September 2026. Archived copy · Save to archive.
4. "Buy iPhone Duo (United States)". Apple Store. Retrieved 10 September 2026. Archived copy · Save to archive.
5. "Buy iPhone Duo (United Kingdom)". Apple Store. Retrieved 10 September 2026. Archived copy · Save to archive.
6. "Buy iPhone Duo (India)". Apple Store. Retrieved 10 September 2026. Archived copy · Save to archive.
7. "Buy iPhone Duo (Canada)". Apple Store. Retrieved 10 September 2026. Archived copy · Save to archive.
8. "Buy iPhone Duo (Australia)". Apple Store. Retrieved 10 September 2026. Archived copy · Save to archive.
9. "iPhone Duo kaufen (Germany)". Apple Store. Retrieved 10 September 2026. Archived copy · Save to archive.
10. "iPhone Duoを購入 (Japan)". Apple Store. Retrieved 10 September 2026. Archived copy · Save to archive.
11. "Buy iPhone Duo (Singapore)". Apple Store. Retrieved 10 September 2026. Archived copy · Save to archive.
12. "Buy iPhone Duo (United Arab Emirates)". Apple Store. Retrieved 10 September 2026. Archived copy · Save to archive.
13. "iPhone 18 Pro and iPhone 18 Pro Max – Technical Specifications". Apple. 9 September 2026. Retrieved 10 September 2026. Archived copy · Save to archive.
14. "Apple Announces Foldable 'iPhone Duo'". MacRumors. 9 September 2026. Retrieved 10 September 2026. Archived copy · Save to archive.
15. "iPhone Duo?". MacRumors. Retrieved 10 September 2026. Archived copy · Save to archive.
16. "Apple iPhone Duo Foldable: Price, Availability". Variety. 9 September 2026. Retrieved 10 September 2026. Archived copy · Save to archive.
17. "The new iPhone Duo is here". PhoneArena. 9 September 2026. Retrieved 10 September 2026. Archived copy · Save to archive.
18. "iPhone Duo: release date, price, colors, pre-orders, specs and everything you need to know". Tom's Guide. 9 September 2026. Retrieved 10 September 2026. Archived copy · Save to archive.
19. "iPhone Duo design: 5.2 mm, Grade 5 titanium, Ceramic Shield, IP68". The Mac Observer. 9 September 2026. Retrieved 10 September 2026. Archived copy · Save to archive.
20. "iPhone Duo official specs, price, release date, features". The Mac Observer. 9 September 2026. Retrieved 10 September 2026. Archived copy · Save to archive.
21. "The iPhone Duo costs more than a Galaxy Z Fold 8 Ultra and a MacBook Neo combined". Gizbot. 10 September 2026. Retrieved 10 September 2026. Archived copy · Save to archive.
22. "Apple iPhone Duo price in India, specifications". Smartprix. Retrieved 10 September 2026. Archived copy · Save to archive.
23. "Apple iPhone Duo – Full phone specifications". GSMArena. Retrieved 10 September 2026. Archived copy · Save to archive.
24. "Samsung Galaxy Z Fold8 Ultra, Fold8, and Flip8: Foldables, Perfected for Every Way of Living". Samsung Newsroom U.S.. Retrieved 10 September 2026. Archived copy · Save to archive.
25. "Galaxy Z Fold8 Ultra". Samsung US. Retrieved 10 September 2026. Archived copy · Save to archive.
26. "Google Pixel 11 Pro Fold Full Technical Specs & Dimensions". Google Store. Retrieved 10 September 2026. Archived copy · Save to archive.
27. Samsung Mobile US (@SamsungMobileUS). "Post on X". X. 9 September 2026. Retrieved 10 September 2026. Archived copy · Save to archive.
28. Marques Brownlee (@MKBHD). "Post on X". X. 9 September 2026. Retrieved 10 September 2026. Archived copy · Save to archive.
29. @TheGalox_. "Post on X". X. 9 September 2026. Retrieved 10 September 2026. Archived copy · Save to archive.
30. Dexerto (@Dexerto). "Post on X". X. 9 September 2026. Retrieved 10 September 2026. Archived copy · Save to archive.
31. @techdroider. "Post on X". X. 9 September 2026. Retrieved 10 September 2026. Archived copy · Save to archive.
32. Mrwhosetheboss (@Mrwhosetheboss). "Post on X". X. 9 September 2026. Retrieved 10 September 2026. Archived copy · Save to archive.
33. Mark Gurman (@markgurman). "Post on X". X. 9 September 2026. Retrieved 10 September 2026. Archived copy · Save to archive.
34. @zollotech. "Post on X". X. 9 September 2026. Retrieved 10 September 2026. Archived copy · Save to archive.
35. @trakinenglish. "Post on X". X. 9 September 2026. Retrieved 10 September 2026. Archived copy · Save to archive.
36. Ben Geskin (@BenGeskin). "Post on X". X. 9 September 2026. Retrieved 10 September 2026. Archived copy · Save to archive.
37. @Ravisutanjani. "Post on X". X. 9 September 2026. Retrieved 10 September 2026. Archived copy · Save to archive.
38. @0xmmsha. "Post on X". X. 9 September 2026. Retrieved 10 September 2026. Archived copy · Save to archive.
39. Zack Nelson (@ZacksJerryRig). "Post on X". X. 9 September 2026. Retrieved 10 September 2026. Archived copy · Save to archive.
40. iphoneduo.wiki editors. "Public reaction on X, 4–10 September 2026: sampling method". iphoneduo.wiki. 10 September 2026. Retrieved 10 September 2026. Archived copy · Save to archive.
41. "Buy iPhone 18 Pro and iPhone 18 Pro Max (United States)". Apple Store. Retrieved 10 September 2026. Archived copy · Save to archive.
42. "Pixel 11 Pro Fold". Google Store. Retrieved 10 September 2026. Archived copy · Save to archive.