Got this Casio Pro Trek WSD-F21HR. WearOS, mil-spec durability, heart rate + other sensors useful in outdoors activities and most importantly dual layer screen that can show just the time, reputedly for
Casio ROTREK Smart GPS WSD-F21HR Outdoor Smart Watch Black USED From Japan | eBay
Casio Pro Trek WSD-F21 HR Watch Review | aBlogtoWatch
Casio Pro Trek WSD-F21HR Smartwatch | The Coolector