In order to ensure high-quality GPS reception and full day continuous 30-seconds GPS coverage, the device has the following dimensions:
- Size: 3.03 x 1.85 x 0.78 inch
- Weight: 2.3 Oz
From the AngelSense Blog:
Proactive alerts to routine deviations and providing consistent location updates in poor GPS and cellular conditions are indispensable features. Supporting these capabilities require enough power to sustain the device and can only be achieved with larger battery size and an equally accommodating device.