Begin with a workload, not a ranking
A short export, a long game and two active apps stress a phone differently. A peak result is not a complete description of performance over time. Before comparing scores, decide which tasks actually matter to you and what delay would be noticeable.
The wider screen may change how you use apps, but more visible work does not itself prove a measured speed improvement. Our multitasking guide focuses on useful combinations rather than treating the chip name as an efficiency score.
Keep feature availability separate
AI availability also depends on software, language and region. Having the announced processor does not override EU Siri AI conditions or mainland China restrictions. Local editions preserve those requirements instead of presenting one global checklist.
- Check the exact app and software version in a test.
- Separate a brief benchmark from sustained use.
- Confirm regional availability of the feature you intend to buy for.
What a useful independent test would report
A reproducible comparison should explain device versions, settings, workload and repetitions. Temperature, background activity and power conditions may affect the result. Without a method, a bold number is difficult to interpret.
PhoneHelp has not benchmarked a retail Duo. We will not import a result from a different iPhone just because it uses the same chip family, or claim a gaming or thermal result that has not been observed.
| Chip | A20 Pro | [A-US-SPEC-001] |
|---|---|---|
| CPU cores | 6 | [A-US-SPEC-001] |
| GPU cores | 7 | [A-US-SPEC-001] |
Sources & verification
- iPhone Duo - Apple Apple · en-US · Last checked September 10, 2026
A-US-PROD-001 - iPhone Duo - Technical Specifications - Apple Apple · en-US · Last checked September 10, 2026
A-US-SPEC-001
Source-based coverage. PhoneHelp has not hands-on tested a retail iPhone Duo.