Traffic Cable vs Smartphone Link
I am the new owner of a Garmin Drivesmart 61. I have a GTM 60 traffic cable on order. I am now using the Garmin Smartphone Link which seems to work fine. What does the GTM 60 do that the Smartphone Link does not and/or vice versa. I got the cable to save data on my smartphone. At least that was my logic. Is one better than the other and if so why? Also can they be used in tandem to create additional benefit or does that create confusion for the electronics.