iPhone Duo uses Apple's N1 chip and a C2 modem
Apple's iPhone Duo spec sheet names an N1 wireless chip and a C2 cellular modem beside the A20 Pro. The sheet does not name an N2, and it does not print a memory size.

| iPhone Duo | |
|---|---|
| Chip | A20 Pro |
| CPU | 6-core, 2 super and 4 efficiency |
| GPU | 7-core, Neural Accelerators, hardware ray tracing |
| Neural Engine | Dual 16-core |
| Wireless chip | Apple N1 |
| Wi-Fi | Wi-Fi 7 (802.11be), 2x2 MIMO |
| Bluetooth | Bluetooth 6 |
| Thread | Yes |
| Cellular modem | Apple C2 |
| 5G | Sub-6 GHz and mmWave, 4x4 MIMO |
| LTE | Gigabit LTE, 4x4 MIMO |
| Ultra Wideband | Second-generation Apple chip |
| NFC | Reader mode |
Apple's spec sheet puts three named chips in the iPhone Duo, and lists Ultra Wideband on its own line. The compute chip is the A20 Pro. The wireless chip is the N1. The cellular modem is the C2. Ultra Wideband is a second-generation Apple chip. The sheet does not name an N2.
The A20 Pro is a 6-core CPU, with 2 super cores and 4 efficiency cores, a 7-core GPU with Neural Accelerators, and a dual 16-core Neural Engine. Ray tracing is hardware-accelerated. The sheet does not print a TOPS figure, a wattage, or a memory capacity beside that chip.
The N1 is the wireless networking chip. Apple's September 9 newsroom post says it does Wi-Fi 7, Bluetooth 6, and Thread. The spec sheet adds the radio detail. Wi-Fi 7 is 802.11be with 2x2 MIMO. The C2 is the cellular modem. That same newsroom sentence calls it Apple's next-generation cellular modem, and says it brings AI-powered improvements to cellular quality and reliability, with mmWave in the U.S. The spec sheet is more specific. It lists 5G on sub-6 GHz and mmWave with 4x4 MIMO, and Gigabit LTE with 4x4 MIMO. The band table on that page is written for model A3447, and it includes mmWave bands n258, n260, and n261.
Storage is printed. The capacities are 256GB, 512GB, 1TB, and 2TB. That is flash capacity, not RAM next to the A20 Pro.
iFixit has not published an iPhone Duo teardown. Its Duo posts are a September note on whether a foldable can be repaired, and an October 20 table of Apple's repair prices. MacRumors, on October 24, still treats a full iFixit teardown as unpublished.
The phones opened on camera are from REWA Technology and Phone Repair Guru. MacRumors wrote them up the same day. REWA's labeled board, in that write-up, shows the A20 Pro and the C2. Those names are already on Apple's sheet. The write-up does not say the label identifies an N1.
iClarified, covering the same videos, says the boards are split. A logic board and a sub-board are joined by a flex cable, rather than stacked in a sandwich. The A20 Pro sits on the main board. A vapor chamber is on that side. The other half uses an aluminum alloy plate.
iPhone in Canada, reading the Phone Repair Guru video, describes a single-layer logic board, a vapor chamber in contact with the A20 Pro, and 12 GB of RAM beside the chip instead of on top of the package. Apple does not print 12 GB. That figure stays out of the table.
The cells are a separate measurement, and they come from the videos. MacRumors gives a larger cell of 2,962 mAh (11.56 Wh) and a smaller cell of 1,921 mAh (7.5 Wh). Together that is 4,883 mAh, and the two watt-hour ratings add to 19.06 Wh. The cells release with electrically activated adhesive. Apple's own battery line is still a runtime. Typical use is up to 24 hours. Video playback is up to 44 hours on the outer display and 31 hours on the inner display. Streamed video is up to 37 hours on the outer display and 26 hours on the inner display. Apple says the phone has dual built-in lithium-ion batteries. It does not print milliamp-hours.
The USB-C port is modular. iPhone in Canada says the video shows it held by two T4 screws. Apple's spec sheet says that connector does DisplayPort and USB 3 up to 10 Gb/s. The phone is eSIM only, worldwide, in Apple's September 9 post. The spec sheet says it stores eight or more eSIMs, with two active, and it does not take a physical SIM.
Touch ID is in the side button. Phone Repair Guru, via MacRumors, says the button can be removed and that the job is difficult. iClarified adds that the frame around it has to be replaced.
The named chips are the ones Apple printed: an A20 Pro, an N1, a C2, and a second-generation Ultra Wideband chip. The repair videos show the A20 Pro and the C2 on the board. They do not add an N2.
Die Brief desk. The claim is ours. Facts from Apple specs, Apple Newsroom, MacRumors, iClarified, iPhone in Canada. Pictures, if any, are from those pages.


