Pebble S110BT Quick Start Manual page 5

9. The RED LED is ON if the position is matched, otherwise it is flashing.
Below is the operation table of S110BTLED.
Charging Status
No Charging
Charging
Full Charge
Position match
N/A
No
Yes
No
Yes
Red LED
Flash-6sec
(Fade in/out)
Flash-1sec
ON
OFF
OFF
Green LED
Flash-6sec
(Fade in/out)
OFF
OFF
ON
ON