BitMart Wallet said it has officially launched a prediction market inside its self-custody wallet, allowing users in select regions to take positions on real-world events in stablecoins without leaving the app. The initial rollout centers on the World Cup and connects to Polymarket liquidity, extending the wallet's push into event-based trading. The company said settlement is handled automatically in stablecoin after outcomes are confirmed, with no separate Polymarket account required and users retaining control of their own keys throughout. The launch also includes a first-round rewards campaign for eligible users.