Fossil introduced the fourth generation of two of its Android Wear smartwatch lines - meet the Fossil Q Venture HR and Q Explorist HR. They are available for pre-order and will ship out on August 26. Fossil Q Explorist 4th generation The main difference between the two is size - Explorist is 45mm in diameter, Venture is 40mm. This means the exchangeable bands are different too, 22mm and 18mm respectively. The price, however, is identical, $255 for a leather band and $275 for a stainless steel band. As you can tell by the name, both watches have heart rate sensors....
Source: https://www.gsmarena.com/fossil_unveils_new_q_venture_and_q_explorist_with_hr_sensor_builtin_gps_and_more-news-32614.php