This in-depth post with comparative chart and video reviews provides all the info you need to choose between the Garmin Edge 530 vs 830.
Garmin Edge 530 vs. 830: Which One Should You Buy?
Edge 530 Review VS Edge 830 - which should you buy?
Average Joe Cyclist - Garmin Edge 1030 vs 820 vs 520 Plus GPS Bike Computers - Which one is right for you? #cycling Read our in-depth comparison.
Garmin Edge 530 vs 830 vs 1030 vs 1040
Garmin Edge 530 vs. 830: Which One Should You Buy?
The Garmin Edge 830 is BETTER than the 530. Here's Why
Garmin Edge 530 vs 830: What's the Difference? • Average Joe Cyclist
Garmin Edge 830 vs 530: Which Is Best (For You)? - Swiss Cycles
The differences between the Garmin Edge 530 and Edge 830 [Review] - Mantel
The differences between the Garmin Edge 530 and Edge 830 [Review] - Mantel