If you only use the very basics and don't travel out of your region, you probably could update every other year. Navionics/Garmin will record their own data! larger bodies of water like Lake Ontario, St. Go Back to Your Boat with Fresh Charts and Leave the Dock with Peace of Mind. You’ll find all the information you need on the official rebate. 31, 2020, you’re eligible to receive a 50 or 100 rebate. There are significant updates done each year, just depends on your region and how many are uploading data. When you buy a qualifying Navionics® or Garmin GPS plotter card through Dec. If you use advanced features like dock to dock auto-routing and other advanced map options you want to be current as well. If you happen to travel to different areas, with a current subscription on a card you can select new maps to download. Now as far your chips go, there currently is a rebate on renewing your subscription so it is not as expensive as one might think, if you want more details. That's a question, that only you can answer! For sure you should keep your mobile subscription current simply for the SonarChart Shading & Fishing Depth Ranges! In Canada, it's only around $30 annual. Do you purchase your yearly subscriptions for navionic chips or just subscribe to the boating apps? Are there that many updates to for Canadian waters to warrant extra expense?
