Huawei Technologies in late November sold more than 10,000 units of its artificial intelligence toy, Smart Hanhan, in the first week of its release, as similar smart playthings seize a growing share of consumer spending worldwide. Shenzhen-based Huawei’s AI-powered emotional support plush toy, which costs 399 yuan (US$57), provides a user with interactive companionship via movement recognition, voice and touch. For example, when a user asks Smart Hanhan to count sheep, it often adds playful...