Attendees use their smartphones as QR codes for various in-app games are displayed on a wall at Tencent Holdings Ltd.'s WeChat Open Class Pro conference.

A man sits at a brick tea booth at a Chinese New Year food exhibition.

An attendee stands in front of a screen displaying QR codes for various programs and services at Tencent Holdings Ltd.'s WeChat Open Class Pro conference.

Attendees at the WeStore booth at Tencent Holdings Ltd.'s WeChat Open Class Pro conference

Attendees walk through the WeChat Open Class Pro conference.

Attendees wait for the keynote speech to start at the WeChat Open Class Pro conference.

Attendees wait for the keynote speech to start at the WeChat Open Class Pro conference.

Fans wait in line outside a Xiaomi Corp smartphone unveiling event. Xiaomi Inc., is a Chinese designer and manufacturer of consumer electronics and related software, home appliances, and household ite...

An attendee compares the beauty camera functions of a Xiaomi and an Apple smartphone at an unveiling event. Xiaomi Inc., is a Chinese designer and manufacturer of consumer electronics and related soft...

A woman carries her sleeping child on her motor scooter.

An attendee compares the beauty camera functions of a Xiaomi and an Apple smartphone at an unveiling event. Xiaomi Inc., is a Chinese designer and manufacturer of consumer electronics and related soft...

Attendees check out Xiaomi smartphones at an unveiling event. Xiaomi Inc., is a Chinese designer and manufacturer of consumer electronics and related software, home appliances, and household items. Be...

Fans attend a Xiaomi Corp smartphone unveiling event. Xiaomi Inc., is a Chinese designer and manufacturer of consumer electronics and related software, home appliances, and household items. Behind Sam...

An attendee tests the augmented reality function of the Xiaomi Corp. Mi MIX 2S smartphone at an unveiling event. Xiaomi Inc., is a Chinese designer and manufacturer of consumer electronics and related...

An attendee tests the augmented reality function of the Xiaomi Corp. Mi MIX 2S smartphone at an unveiling event. Xiaomi Inc., is a Chinese designer and manufacturer of consumer electronics and related...