Amazfit T-Rex Dual Solar appears to be moving closer to launch, as fresh clues have surfaced inside the Zepp app. The rugged smartwatch has already appeared in earlier certification listings, and now new software references suggest Zepp Health is actively preparing features tied to solar charging.
The latest discovery comes from version 10.7.3 of the Zepp app, where direct mentions of the Amazfit T-Rex Dual Solar were found alongside several new solar-related settings. These include parameters such as SolarStatsActivity and references to a feature called Solar Boost Mode, giving a clearer idea of how the upcoming outdoor smartwatch may use sunlight to extend battery life.
Solar Boost Mode appears to be designed for maximum energy efficiency. According to the in-app descriptions, enabling the mode significantly reduces what is shown on the display. Instead of full smartwatch functionality, users would only see essential information such as the current time, battery level, and sunlight intensity. Secondary features are disabled while the mode is active, helping reduce power consumption as much as possible.
The app also appears to include warnings for situations where solar charging efficiency becomes too low. This could help users adjust the watch’s position or move it into stronger sunlight to improve charging performance. For hikers, campers, runners, and outdoor adventurers, this kind of feedback could be especially useful during long trips away from a charger.
The idea behind Solar Boost Mode is likely simple: reduce background activity and screen power usage so that the built-in solar charging system can replenish the battery more effectively. In practical terms, users may be able to place the Amazfit T-Rex Dual Solar in direct sunlight during a rest stop, lunch break, or campsite pause to gain extra battery life before continuing with more demanding features such as GPS tracking, health monitoring, or workout recording.
Another interesting detail found in the app is the use of terms like watch_face_input_power and case_back_input_power. While Zepp Health has not officially confirmed the hardware design, these references may point to a dual solar panel setup. If accurate, the smartwatch could gather solar energy from more than one surface, potentially improving charging performance compared with a standard single-panel design.
The Amazfit T-Rex series is already known for its durable design, outdoor-focused features, and long battery life. Adding more advanced solar charging could make the Amazfit T-Rex Dual Solar even more appealing to users who spend a lot of time outdoors and want a smartwatch that can last longer between charges.
Although Zepp Health has not yet announced the official launch date, the appearance of detailed solar charging features inside the Zepp app strongly suggests that the Amazfit T-Rex Dual Solar is nearing release. With Solar Boost Mode, sunlight intensity tracking, and possible dual-panel charging support, this upcoming rugged smartwatch could become one of the brand’s most interesting outdoor wearables yet.
