Ive used a Navigator in the past and enjoyed it accuracy. When it dies and I couldnt get another I went with the Dexcom. The accuracy hasnt met my expectations BUT I still continue to use it because its the best if not only option.
about 20 days ago I put in a sensor that is remarkable for 2 reasons
1) its still going string after nearly 20 days - the receiver wont tell me exactly which is nuts but its got to be between 18 and 20 days - Ive never had one last this long
2) Its been reliable and accurate- 10 or more times its been with in 5 points of finger sticks - which has NEVER happened in the year or more Ive been using the Dex.
Not sure what the difference is but I hope I can get lucky again ....
The accuracy is much MORE important to me than the 20 days