Why is Wireless Power Sharing Not Supported on Samsung Galaxy Watch Ultra and Watch7?

Discover why Samsung Galaxy Watch Ultra and Watch7 no longer support Wireless Power Sharing due to redesigned sensors and back glass structure, and learn about optimized charging solutions.

The Samsung Galaxy Watch Ultra and Watch7 no longer support Wireless Power Sharing because of a redesigned sensor layout and modified back glass shape, which increased the distance between the internal charging coil and external chargers. This change was made to enhance health tracking accuracy but impacts wireless charging compatibility.

1. Why is Wireless Power Sharing Not Working on My Galaxy Watch Ultra or Watch7?

The Galaxy Watch Ultra and Watch7 feature a redesigned sensor array and back glass structure to improve health monitoring capabilities, such as heart rate and blood oxygen measurements during intense workouts. However, these design changes increased the physical gap between the internal wireless charging coil and external charging surfaces, making Wireless Power Sharing incompatible with these models.

- The new sensor placement requires a thicker back glass, increasing the distance between the charging coil and the charger.

- Wireless Power Sharing relies on precise coil alignment, which is disrupted by the altered design.

- The feature was intentionally disabled to maintain optimal performance for core health tracking functions.

2. Why Is Charging Slow When Using Older Wireless Chargers?

Older wireless chargers may deliver slower charging speeds for the Galaxy Watch Ultra and Watch7 due to the increased distance between the internal coil and the charger surface. This reduced efficiency can also cause higher heat generation during charging.

- The redesigned back glass adds extra space between the charging coil and the charger pad.

- Older chargers may lack the updated coil alignment technology needed for efficient power transfer.

- Heat buildup from inefficient charging can further slow down the process.

3. What Charger Should I Use for Optimal Performance?

1. Use the official Samsung wireless charger designed for the Galaxy Watch7 series (EP-OL300).
2. Ensure the watch is placed directly on the center of the charger for proper alignment.
3. Avoid using third-party chargers unless they are certified for Galaxy Watch Ultra and Watch7 compatibility.

4. Supported Samsung Galaxy Devices

The redesigned charging system applies specifically to:

- Galaxy Watch Ultra
- Galaxy Watch7

Previous models, such as the Galaxy Watch6 and earlier, continue to support Wireless Power Sharing.

5. Additional Things to Check

If you're experiencing charging issues:

1. Clean the back of your watch and charger to remove dust or debris.
2. Verify that the charger is properly plugged in and receiving power.
3. Check for software updates that may improve charging efficiency.

Related Samsung Support Topics

- How to optimize battery life on Samsung Galaxy Watches

- Troubleshooting wireless charging issues on Samsung devices

- Understanding health tracking improvements on Galaxy Watch Ultra and Watch7