Huami (soon to be rebranded as Zepp) recently announced its latest rugged smartwatch with the Amazfit T-Rex Pro. Being a Pro upgrade to the original Amazfit T-Rex which we reviewed in detail last year, the new edition brings 10ATM water resistance (compared to 5 ATM on the old model) and Huami’s self-developed BioTracker PPG 2 optical sensor. Other than that you get a slightly tweaked software experience in the same military-grade rugged design as before. This means an excellent 1.3" AMOLED with the Always-On Display functionality, on-board GPS and tracking for over 100 sports and...
Source: https://www.gsmarena.com/amazfit_trex_pro_review-news-48592.php