ZTE has been pioneering under-display selfie cameras since 2020 with its Axon series. Now, the Chinese brand is back with the Axon 40 Ultra, equipped with a new generation of under-display selfie camera tech while delivering flagship-tier specs and features. Is this the ZTE phone that will take the fight to high-end offerings from Google, Samsung, and Apple? Find out in our ZTE Axon 40 Ultra review.