AllFavoritePopularMost rated Fire-Boltt Ninja 2 SpO2 Full Touch Smartwatch with 30 Workout Modes Added to wishlistRemoved from wishlist 0 Add to compare Fire-Boltt SpO2 Full Touch 1.4 inch Smart Watch 400 Nits Peak Brightness Metal Body with 24*7 Heart Rate monitoring IPX7 with Blood Oxygen, Fitness, Sports & Sleep Tracking Added to wishlistRemoved from wishlist 0 Add to compare Show next