Apple's N1 chip brings Wi-Fi 7 – but with limitations

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With the new iPhone 17, iPhone 17 Pro, iPhone 17 Pro Max, and iPhone Air, Apple is once again relying on its own wireless technology. The new N1 chip brings support for Wi-Fi 7, Bluetooth 6, and Thread—and is intended to deliver improved performance and efficiency. At first glance, this sounds like a clear upgrade. But a look at the official documentation reveals a significant limitation when it comes to Wi-Fi 7.

Wi-Fi 7 is considered the next big step in wireless networking. Higher speeds, lower latency, and improved stability – the new standard promises all of this. Expectations for Apple's first proprietary Wi-Fi 7 chip were correspondingly high. In practice, the N1 chip delivers many improvements, but falls significantly short of its technical capabilities in one area. Anyone hoping for full bandwidth will be disappointed.

The N1 chip – Apple’s own solution for wireless connections

Apple is installing the new N1 chip in all models of the iPhone 17 series and the iPhone Air. The chip supports Wi-Fi 7, Bluetooth 6, and Thread—all current wireless standards. Unlike previous models, the wireless chip this time is no longer from Broadcom, but comes directly from Apple. The goal is to further improve control over performance, power consumption, and system integration. Wi-Fi 7 offers several advantages. The standard allows the simultaneous use of the 2.4 GHz, 5 GHz, and 6 GHz frequency ranges. This increases the transmission rate and reduces interference. Furthermore, larger amounts of data can be transmitted over a wider channel bandwidth—theoretically up to 320 MHz.

The bandwidth brake: maximum 160 MHz instead of 320 MHz

This is the limitation: According to FCC documents, the N1 chip only supports a channel bandwidth of up to 160 MHz. While this corresponds to what's installed in the iPhone 16, it's significantly below the Wi-Fi 7 maximum of 320 MHz. This means the new Apple devices can't utilize the maximum possible speeds Wi-Fi 7 would actually allow. This information comes from official FCC documents discovered by MacRumors . Apple itself has not yet provided any detailed information on this. The limitation affects all current models with the N1 chip—i.e., the iPhone 17, iPhone 17 Pro, iPhone 17 Pro Max, and iPhone Air.

Technically speaking, this means that even if a compatible Wi-Fi 7 router is present, the channel bandwidth remains limited to 160 MHz. This reduces the theoretically achievable data rate, although in everyday use, other factors usually limit this anyway—such as the internet connection or interference from other devices.

Comparison with the previous generation

For comparison, the iPhone 16 (except the iPhone 16e) also supports Wi-Fi 7 with 160 MHz bandwidth. However, these devices still use a Broadcom chip. Many had therefore hoped that Apple would also unlock the full 320 MHz with the switch to its own N1 chip. This is not the case. Whether Apple chose this limitation for technical reasons or strategically is unknown. It is possible that the N1 chip already supports 320 MHz, but the function remains disabled for energy saving or reliability reasons. Official information on this is lacking.

Further improvements with the N1 chip

Despite the limited channel bandwidth, the N1 chip offers clear advantages. Apple cites improved overall performance for features like AirDrop and Personal Hotspot. The energy efficiency of wireless connections has also been optimized. This can have a positive impact on battery life, especially with continuous Wi-Fi or Bluetooth use. Furthermore, the integration of Thread opens up new possibilities in the smart home sector. Thread is a power-efficient, secure network protocol for smart devices – and could play a central role in Apple's HomeKit strategy in the future.

Apple N1 chip: Stable, efficient, but not at its limit

With the N1 chip in the iPhone 17, Apple delivers a stable and modern solution for wireless communication. Support for Wi-Fi 7, Bluetooth 6, and Thread makes the devices future-proof. However, the decision to limit the channel bandwidth to 160 MHz remains a clear step backward in terms of speed – at least on paper. For most people, this is unlikely to be relevant in everyday life, as internet connections are already limited or influenced by external factors. However, those who relied on maximum performance with Wi-Fi 7 will not get its full potential. Nevertheless, Apple is on a clear path with the N1 chip: more in-house development, more control, more system integration – even if this sometimes entails compromises. (Image: Apple)