Rollme Vast smartwatch with 200-day standby battery and AI assistant

Chinese tech company Rollme has unveiled its new smartwatch, the Rollme Vast, which stands out with an impressive standby battery life of up to 200 days. The device features a 1.83-inch IPS display and a massive 1000mAh battery, promising endurance far beyond typical smartwatches on the market. Even with active health monitoring enabled, the watch can last around 40 days on a single charge.

The Rollme Vast is equipped with an advanced HX3918 sensor, delivering real-time heart rate monitoring and oxygen saturation levels, alongside sleep tracking that breaks down deep, light, and REM sleep phases. It supports over 70 sports modes, automatically recognizing activities like running, rowing, and rock climbing, while generating detailed post-exercise reports.

Water resistance and AI voice assistant features of Rollme Vast

With IP68 certification, the Rollme Vast can handle water-based activities, tracking paddling strokes, distance swum, and SWOLF scores for swimming efficiency. Connectivity is secured via Bluetooth 5.4, enabling high-definition calls. The watch also integrates an AI voice assistant that manages tasks like alarms, schedules, and music control through voice commands.

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Rollme Vast price and comparison with previous Rollme smartwatch

Rollme offers the Vast in black and silver finishes at an affordable price of $30, positioning it as a budget-friendly alternative to more expensive fitness-focused wearables. This follows Rollme’s earlier March launch of the Navis smartwatch, which features dual-band GPS, offline maps, and 50-meter water resistance, indicating the brand’s commitment to expanding its wearable ecosystem.

Rollme Vast pricing:

• Black finish – $30
• Silver finish – $30