Xiaomi Black Shark GS3 Ultra: Ultra-durable smartwatch with 45-day battery
Xiaomi’s Black Shark GS3 Ultra blends a rugged build, IP69K water resistance, a bright 1.43-inch AMOLED display, and an impressive 45-day battery life for active users.
Xiaomi expands its Black Shark lineup with a rugged smartwatch designed for athletes and outdoor fans. The GS3 Ultra aims to blend bold style with durable engineering and long-lasting battery life.


Rugged design and vivid display
The GS3 Ultra uses a reinforced metal frame and a 1.43-inch AMOLED screen with a 466 × 466 pixel resolution. The display can reach up to 1000 nits, ensuring clear visibility in bright sunlight. The panel is protected by Gorilla Glass with 9H hardness for scratch resistance.
Water resistance and aquatic readiness
With IP69K protection, the watch can withstand powerful jets of water and dust, and it is rated for depths up to 50 meters. This makes it suitable for most water activities and swimming.
Health and sport tracking
The GS3 Ultra tracks sleep quality, heart rate, and blood oxygen levels, and it supports about 160 sport modes. However, it does not offer skin temperature measurement, electrocardiogram (ECG), or blood pressure monitoring.
Battery life and power modes
In typical use, the device lasts about 18 days on a single charge. When using dual-band GPS and multiple sport modes extensively, battery life drops. In power-saving mode, a single charge can last up to 45 days.
Colors, availability, and pricing
The Black Shark GS3 Ultra will be available in black and silver finishes. Xiaomi has not yet announced the price or exact release date.
Expert comment: Industry analyst Alex Chen says the GS3 Ultra stands out for durability and endurance, appealing to athletes who want a single device for tracking and daily wear. He notes that some health sensors commonly found in premium models are not included in this rugged class.
Summary
The Black Shark GS3 Ultra combines a tough design with a bright, high-contrast display and a long battery life tailored for active users. It offers extensive sport tracking and reliable water resistance, while omitting some advanced medical sensors found in higher-end devices. Overall, it targets users who prioritise durability and endurance in a wearable.
Key insight: For athletes and outdoor enthusiasts, durability and long battery life redefine smartwatch practicality, and the GS3 Ultra embodies this shift with rugged protection and extended power.


