The Retroid Pocket Duo will face some hefty competition when it chooses to enter the handheld market. Manufacturers Yoniq and Anbernic have already lifted the lid on their own dual-screen devices in the form of the Yoniq Duo and the Anbernic RG DS Plus, while AYN is well into its rollout of the AYN Thor. We also have the AYANEO Pocket DS at the upper end of the market, too.