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Rumors suggest Apple plans to expand Apple-designed modems to the entire iPhone 18 lineup, ending support for Qualcomm modems. The transition will bring speed and efficiency improvements, along with a little-known privacy benefit.
In iOS 26.3, Apple added a Limit Precise Location setting that cuts down on the amount of location data that's available to mobile networks, improving user privacy.
Mobile networks determine your location using information from cellular towers that a device connects to, but with Limit Precise Location enabled, some of the data typically provided to mobile networks is restricted. Instead of seeing location down to a street address, carriers may be limited to the neighborhood where a device is located.
The problem is that this feature is currently only available on devices with an Apple-designed C1 or C1X modem, which includes the iPhone Air, iPhone 16e, iPhone 17e, and M5 iPad Pro. Devices with Qualcomm modems like the iPhone 17 Pro models do not have the Limit Precise Location setting.
With the iPhone 18 Pro models and the iPhone Fold expected to use Apple modem technology, this is likely a privacy option that is set to expand to the full iPhone lineup.
Reducing location precision does not impact signal quality or user experience, nor does it affect the precision of location data provided to emergency responders during an emergency call. It is only meant to limit the location data given to cellular carriers, and it is distinct from location data shared with apps through Location Services.
While Apple's next set of iPhones will all likely have the new privacy feature, carriers do have to implement support. So far there are a limited number of carriers that have added the feature, but if it expands to the entire iPhone lineup and there is customer demand, it could see more widespread adoption.
In the United States, only Boost Mobile supports limiting precise location data, but EE, BT, and Sky all support it in the UK. Carriers in Austria, Germany, Denmark, Ireland, and Thailand have also adopted support, with a list available on Apple's website.
The C2 modem that Apple is rumored to be working on is more capable than the C1 or C1X, and it will offer similar performance to Qualcomm's newest modems. It is expected to support mmWave 5G, which is not a feature of the C1 or C1X.
This article, "Apple's iPhone 18 Modem Switch Comes With a Quiet Privacy Benefit" first appeared on MacRumors.com
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In iOS 26.3, Apple added a Limit Precise Location setting that cuts down on the amount of location data that's available to mobile networks, improving user privacy.
Mobile networks determine your location using information from cellular towers that a device connects to, but with Limit Precise Location enabled, some of the data typically provided to mobile networks is restricted. Instead of seeing location down to a street address, carriers may be limited to the neighborhood where a device is located.
The problem is that this feature is currently only available on devices with an Apple-designed C1 or C1X modem, which includes the iPhone Air, iPhone 16e, iPhone 17e, and M5 iPad Pro. Devices with Qualcomm modems like the iPhone 17 Pro models do not have the Limit Precise Location setting.
With the iPhone 18 Pro models and the iPhone Fold expected to use Apple modem technology, this is likely a privacy option that is set to expand to the full iPhone lineup.
Reducing location precision does not impact signal quality or user experience, nor does it affect the precision of location data provided to emergency responders during an emergency call. It is only meant to limit the location data given to cellular carriers, and it is distinct from location data shared with apps through Location Services.
While Apple's next set of iPhones will all likely have the new privacy feature, carriers do have to implement support. So far there are a limited number of carriers that have added the feature, but if it expands to the entire iPhone lineup and there is customer demand, it could see more widespread adoption.
In the United States, only Boost Mobile supports limiting precise location data, but EE, BT, and Sky all support it in the UK. Carriers in Austria, Germany, Denmark, Ireland, and Thailand have also adopted support, with a list available on Apple's website.
The C2 modem that Apple is rumored to be working on is more capable than the C1 or C1X, and it will offer similar performance to Qualcomm's newest modems. It is expected to support mmWave 5G, which is not a feature of the C1 or C1X.
Related Forum: iPhone
This article, "Apple's iPhone 18 Modem Switch Comes With a Quiet Privacy Benefit" first appeared on MacRumors.com
Discuss this article in our forums
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