'A very disappointing piece of kit which is a prototype at best'
Strengths: Mapping and analysis functions are good. Garmin connect has improved.
Weaknesses: I've had two 405s and locating satellites continues to frustrate me. Sometimes it can take 30+ mins. Last week my device failed during a marathon, gave me incorrrect splits and thus created anxiety during a race.
Overall: I cannot rely on the 405 when I need it most. It isn't worth the money and after last week's failure during a marathon, I am actively seeking something more reliable.