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Features to Look For

If you’re planning on taking your fitness tracker into the water, here are some key features to consider:

  • Water Resistance Rating: Look for a rating of at least 30 meters.
  • Open Water and Pool Tracking: Make sure the tracker can track your swims in both open water and pools.
  • Lap Times: Get a tracker that can record your lap times.
  • Underwater Heart Rate Tracking: This feature is available on some trackers and provides accurate heart rate data while swimming.
  • Water Lock: This feature prevents accidental screen touches while submerged.

Water Resistance Explained

Water resistance is measured in meters. A rating of 50 meters (WR50, 5 Bar, 50 ATM) means the tracker is waterproof up to 50 meters. This is sufficient for swimming, but if you plan on doing more intense water activities like water skiing or snorkeling, you may need a tracker with a higher rating.

Most Accurate Waterproof Fitness Trackers

For the most accurate heart rate tracking while swimming, consider the Garmin Vivoactive 4, Polar Grit X Pro, or Garmin Swim 2. The Apple Watch Series 8 also supports heart rate tracking during swims.

Best Waterproof Fitness Trackers

Here are some top picks for waterproof fitness trackers:

  • Casual Swimmers: Garmin Vivoactive 4, Fitbit Versa 4
  • Water Sports Athletes: Polar Grit X Pro, Garmin Swim 2
  • Best Overall: Apple Watch Series 8