In 2026, omnichannel retail demands more than just basic card readers; it requires intelligent IoT hubs. This comprehensive buyer’s guide helps ISVs and enterprise retailers navigate the complex ecosystem of OEM POS Terminals. Learn how to choose between Smart POS, Desktop POS, and Self-Service Kiosks, understand the strategic differences between OEM and ODM manufacturing, and discover the ultimate matrix for screening reliable hardware partners for unified commerce and non-financial transactions.