The iPhone SE 4 will support 5G connectivity, marking a significant step for Apple as it introduces its first in-house 5G modem, developed by TSMC. However, this modem is expected to lack mmWave support, which is a technology that enables ultra-fast 5G speeds in densely populated areas[1][2][4]. Instead, the modem will focus on sub-6 GHz networks, which are more widely deployed but do not offer the same peak speeds as mmWave[3][4].
While the iPhone SE 4 will provide improved connectivity and potentially better battery efficiency compared to previous models, users in areas that heavily rely on mmWave technology may experience slower upload and download speeds compared to devices using Qualcomm's Snapdragon X75 modem, such as the iPhone 16 series[1][3][4]. Thus, while it will indeed support 5G, the performance may vary based on network conditions and the specific technologies utilized.
Citations:[1] https://www.benzinga.com/25/02/43774315/apples-iphone-se-4-to-feature-tsmc-made-in-house-5g-modembut-it-may-lag-behind-qualcomms-snapdragon-x75
[2] https://www.gsmarena.com/iphone_se_4s_modem_to_lack_mmwave_support-news-66580.php
[3] https://www.rdworldonline.com/iphone-se-4-launch-hints-at-apples-long-game-in-5g-modems-challenging-qualcomms-reign/
[4] https://www.techradar.com/phones/iphone/new-iphone-se-4-leak-suggests-it-wont-match-the-iphone-16-in-one-key-area
[5] https://www.macrumors.com/guide/iphone-se-4/
[6] https://screenrant.com/apple-iphone-se-2022-no-mmwave-5g-support/
[7] https://www.tomsguide.com/news/iphone-se-4
[8] https://www.simplymac.com/iphone/apples-iphone-se-4-to-launch-at-499-with-a18-chip-8gb-ram-and-apple-intelligence-support
[9] https://www.cnet.com/tech/mobile/iphone-se-4-rumors-apples-new-se-could-drop-soon-with-an-iphone-14-like-design/
[10] https://www.5gworldpro.com/blog/2024/09/27/is-the-iphone-se-5g-compatible-a-complete-guide/
[11] https://www.tomsguide.com/phones/iphones/iphone-se-4-vs-iphone-17