At a glance
Both cars deliver over 340 miles of EPA range and charge from 10-80% in around 20 minutes. The difference is in the details: Tesla wins on charging network and software, Hyundai wins on price-per-mile of range and comfort.
Range & efficiency
The IONIQ 6 is the most efficient EV you can buy today, needing roughly 18% less energy per mile than the Model 3. In real-world winter driving, that difference grows.
Charging
Tesla's Supercharger network is simply the best in the business - more stations, faster and more reliable. The IONIQ 6 charges slightly faster at peak on 800V chargers, but you will find far fewer of them.
Price
The IONIQ 6 is a few thousand dollars cheaper for comparable range. If value is king, Hyundai takes it.
Verdict
Buy the Model 3 if you want the best overall experience and charging network. Buy the IONIQ 6 if efficiency and price matter most.