---pro's---
1) can check both individual lap time and lap accumlative time
2) just press one button to starting a new lap
3) dia. 30mm LCD panel with big size reading
---con's---
1) vv easy to clear the old record if pressing the "stop" button twice accidentally
2) can not record the laps into "group"( for casio SWG200, laps are grouped and view as a "run" as dated)
3) no "est record", distance & energy consumption
ps. with both black & white marks ring / bule & yellow marks ring....
( I think it should be same "module inside" as Paco 爸 ching introducung before...)