This book constitutes the refereed proceedings of the 10th International Workshop on Sensor-Based Activity Recognition and Artificial Intelligence, iWOAR 2025, held in Enschede, The Netherlands, during September 18–19, 2025.The 19 full papers and 12 short papers presented in this volume were carefully reviewed and selected from 42 submissions. The accepted papers were presented in the following topical sections during the workshop presentations: Next-Gen Human Activity Recognition, AI Health Tech, Data Generation and Cleaning for Robust Human-Centric AI, Wearable Monitoring for Cognitive and Physiological States, and Advanced Sensing and Interaction for Human-Centred Systems.