More than any other gadget (yes, even smartphones), battery life for smartwatches are a huge selling point. Instead of being just another gadget tethered to another cord or charging dock, a longer battery life means more convenience for a wearable that for the past century never really required charging.
Motorola advertised the new Moto 360, arguably the most well-designed smartwatch, as having a 320 mAh battery, slightly larger than the Samsung Gear Live but not as beefy as the G Watch's 400 mAh battery.
However, iFixit's teardown of the Moto 360 reveals that there's actually only a 300 mAh battery inside its casing.
Although the reason for this marketing duplicity is unknown, our own real-world tests of the Moto 360 show that the wristwatch is capable of getting through the entire day, and if on the right settings, a full 24 hours. The Moto 360 is also the first Android Wear timepiece with an ambient light sensor, so whether you're an outdoors person or a shut-in could also affect overall performance.
iFixit's smartwatch surgery rated the repairability of the Moto 360 with a paltry three out of 10. So if you somehow get through the wearable's IP67 water-resistant rating or another disaster befalls your 360, you might be out of luck. [iFixit]