Fire Boltt Hulk

The Fire Boltt Hulk is a feature-packed smartwatch with a 1.78-inch color AMOLED display offering 368x448 pixel resolution and 326 PPI density. It supports Bluetooth 5.0 with calling functionality and is compatible with both Android and iOS devices. Health monitoring features include heart rate, SpO2 blood oxygen, sleep tracking, pedometer, calorie count, and step counter. The device is IP67 certified for water and dust resistance up to 1 meter depth. Powered by a 400 mAh lithium-ion battery providing up to 7 days of backup, it also includes multimedia controls, alarms, stopwatch, timer, and reminders. Constructed with zinc alloy materials in a square shape weighing just 36.8 grams.