Inside the Pebble HR
A detailed look at the internals of the Pebble HR smartwatch
Pebble HR Teardown
The Pebble HR (Pebble 2) introduced heart rate monitoring to the Pebble lineup. Here's a look at what's inside this innovative smartwatch.
The main board with the e-paper display controller
Heart rate sensor and battery components
Key Components:
- STM32 ARM Cortex-M3 microcontroller
- 1.26-inch e-paper display
- Optical heart rate sensor
- Bluetooth 4.0 LE module
- 3-axis accelerometer
- Vibration motor
- 200mAh lithium-ion battery
The heart rate sensor uses LED lights and a photodiode to detect blood flow through your wrist.
