NBA tests 'smart' Wilson basketballs with Bluetooth sensor in preseason
The NBA is testing connected Wilson X basketballs during select preseason games. A Bluetooth sensor built into the air valve adds about one gram to the ball's weight, and data from arena antennas feeds models for AI-assisted officiating, though nothing captured is used in games yet.
- Bluetooth sensor sits in the air valve and adds about 1 gram (1/600 of ball weight)
- Blind study: players don't know if they're using the smart ball or a standard one
- Officiating crew gets wrist wearables tracking replay reviews and scoring changes
- Ball was previously tested in the 2025-26 G League and 2026 Summer League
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