Smartwatches > Battery 300 - 320mAh 440 - 460mAh 360 - 380mAh 320 - 340mAh 180 - 200mAh 240 - 260mAh 280 - 300mAh 400 - 420mAh 380 - 400mAh 140 - 160mAh 260 - 280mAh 460 - 480mAh 220 - 240mAh 420 - 440mAh 80 - 100mAh 60 - 80mAh 120 - 140mAh 200 - 220mAh 580 - 600mAh 540 - 560mAh