September is almost here, which means new iPhones are just around the corner. It’s widely expected that all four upcoming iPhone 15 models will come with a USB-C port instead of Lightning, but there may be differences in speed across the lineup.
In November 2022, Apple analyst Ming-Chi Kuo said that the USB-C port on the iPhone 15 Pro and iPhone 15 Pro Max will support at least the USB 3.2 or Thunderbolt 3 specification for data transfer speeds of up to 20 or 40 Gbps. Kuo said the USB-C port on the lower-cost iPhone 15 and iPhone 15 Plus models will still be limited to USB 2.0 speeds of up to 480Mbps, which is the same speed as Lightning on current iPhones.
All current-generation iPad and Mac models have USB-C ports at different speeds:
| device | USB-C specification |
|---|---|
|
All current Mac models |
Thunderbolt (up to 40Gbps) |
|
iPad Pro (2021 and 2022) |
Thunderbolt (up to 40Gbps) |
|
iPad Pro (2018 and 2020) |
USB 3.1 Gen 2 (up to 10Gbps) |
|
iPad Air (2022) |
USB 3.1 Gen 2 (up to 10Gbps) |
|
iPad Air (2020) |
USB 3.1 Gen 1 (up to 5Gbps) |
|
iPad mini (2021) |
USB 3.1 Gen 1 (up to 5Gbps) |
|
iPad (2022) |
USB 2.0 (up to 480 Mbps) |
Rumored speeds for the iPhone 15 range:
| device | USB-C specification |
|---|---|
|
iPhone 15 Pro Max |
USB 3.2 or Thunderbolt (up to 20 or 40 Gbps) |
|
iPhone 15 Pro |
USB 3.2 or Thunderbolt (up to 20 or 40 Gbps) |
|
iPhone 15 Plus |
USB 2.0 (up to 480 Mbps) |
|
iPhone 15 |
USB 2.0 (up to 480 Mbps) |
Higher speeds allow for faster data transfer over a USB-C or Thunderbolt cable, such as when exporting photos from your iPhone to your Mac.
Rumors suggest that Apple will include a new braided USB-C cable with all iPhone 15 models, but the cable may still be limited to USB 2.0 speeds. This means that customers who purchase an iPhone 15 Pro or iPhone 15 Pro Max will need to purchase a higher-spec cable separately to take advantage of the rumored higher speeds.
Apple is expected to unveil the iPhone 15 series at an event rumored to be held on Tuesday, September 12th. Apple hasn’t officially announced the event yet, but invitations will likely be sent out in the next week or two.
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