Do iPhone Duo cases fit every iPhone Duo model number?

Yes. Every model number of the iPhone Duo has the same body, so cases and screen protectors made for the iPhone Duo fit all of them. What differs between versions is mostly the SIM, 5G bands and region.

A3447 is the iPhone Duo

Q: What phone is A3447?

A3447 is the iPhone Duo. Apple lists this version for: United States, Puerto Rico.

Apple lists this version for: United States, Puerto Rico. It isn’t the Australian version (that’s A3720), but it takes the same cases and screens.

For your iPhone Duo

Ask us about this phone

Not sure what’s wrong with it? Diagnostics at Riverwood Plaza are free.

Software updates

Gets iOS 27

Yes. The iPhone Duo runs iOS 27, Apple’s current version.

Other iPhone Duo model numbers

A3719 — Bahrain, Canada, Guam, Japan, Kuwait, Mexico, Oman, Qatar, Saudi Arabia, United Arab Emirates and US Virgin Islands
A3721 — China mainland
A3720 — Australia and most other countries

Check it yourself

Where to find the model number.

Settings → General → About, then tap the Model Number line once to switch from the part number to the A number. Got a different number? Look it up here.

More free tools

Repair or replace? →Which phone do I have? →Will my case fit? →Can my power bank fly? →

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