Hey @SimY76! Try these helpful band tips/precautions from the official product guide:
• When you wear the watch for a long time or do a high-intensity exercise while wearing it, skin irritation may occur due to friction and pressure. If you are wearing your watch for a long time, remove it from your wrist and do not wear your watch for several hours.
• Skin irritation may occur due to an allergy, environment factors, other factors, or when your skin is exposed to soap or sweat for long periods. In this case, stop using your watch and wait 2 or 3 days for the symptoms to ease. If the symptoms persist or worsen, immediately call your doctor.
• Make sure your skin is dry before wearing your watch. If you wear a wet watch for a long time, your skin may be affected.
• If you use your watch in the water, remove foreign materials from your skin and watch and dry them thoroughly to prevent the skin irritation.
• Do not use any accessories except the watch in the water.
