Amazon.com: FitTurn Bands Compatible with Suunto Ambit 3 VERTICAL & Spartan Sport Watch Band Strap Soft Rubber Watch Band Replacement Adjustable Sport Wristband Watch Accessories for Spartan Sport watch (Black) : Cell
Amazon.com: Synergy Digital Smartwatch Battery, Compatible with Suunto Spartan Trainer Smartwatch, (Li-Pol, 3.7V, 230mAh) Ultra High Capacity, Replacement for Suunto PR-402626P Battery : Cell Phones & Accessories