Apple has officially unveiled two new products: the iPhone 17e and the iPad Air driven by the M4 chip. Both devices feature the new C1X 5G modem, which presents several benefits over earlier non-Apple modems.
### #1: Increased Data Speeds
One of the main advantages of the C1X modem is its superior speed potential. As reported by Apple, the C1X modem delivers “up to 50 percent quicker cellular data performance” in the M4 iPad Air in comparison to the M3 model’s Qualcomm modem. The iPhone 17e, succeeding the iPhone 16e that incorporated the C1 modem, experiences a noteworthy enhancement as the C1X is claimed to be up to 2x quicker than its predecessor. Beyond mere speed, the C1X modem is engineered to smartly manage data traffic, prioritizing time-sensitive information to elevate overall responsiveness during network congestion.
### #2: ‘Limit Precise Location’ Privacy Feature
With the rollout of iOS 26.3, Apple has introduced a new privacy feature named ‘Limit Precise Location,’ available solely on devices with Apple-built modems, including the iPhone 17e and M4 iPad Air. This function boosts user privacy by diminishing the accuracy of location data shared with cellular networks. When activated, the device may only reveal a general location, such as the vicinity, rather than a specific address. Although currently supported by select carriers, the roster is anticipated to grow, enabling more users to benefit from this privacy upgrade.
### #3: Enhancements in Battery Life
Apple’s proprietary 5G modems have consistently shown better energy efficiency relative to third-party alternatives. The C1X modem upholds this trend, significantly curtailing battery drain associated with cellular connectivity. For example, the M4 iPad Air features “up to 30 percent less modem energy consumption” compared to the M3 model for active cellular users. This efficiency carries over to the iPhone 17e, where the C1X modem plays a role in exceptional battery life, building on the improvements introduced with the C1 modem in the prior generation.
In summary, the launch of the C1X modem in the iPhone 17e and iPad Air with M4 signifies a notable leap in speed, privacy, and battery efficiency, reinforcing Apple’s dedication to enhancing user experience with its newest devices.