The CPU type most likely to be found in a smartphone is an ARM processor.
Explanation
- Most smartphones use ARM architecture CPUs because of their power efficiency and performance balance, which suits mobile devices with limited battery capacity.
- Popular smartphone processors like Apple's A-series (e.g., A14 Bionic), Qualcomm Snapdragon series, Samsung Exynos, and MediaTek Dimensity are all based on ARM architecture.
- These processors are designed to handle complex tasks, multimedia, and connectivity while conserving battery life, making ARM the dominant CPU type in mobile phones today.