Chinese electronics companies Insta360 and Vivo are preparing aggressive moves into the gimbal-stabilised camera market, setting up a direct challenge to DJI’s dominance, though analysts warn the newcomers may struggle to match the drone maker’s entrenched content ecosystem. Insta360, a key rival to GoPro, is planning a handheld gimbal camera aimed at DJI’s popular Pocket series, currently slated for release in the first half of the year, according to people familiar with the matter. Separately,...