Besides Amazon Ring, DophiGo doorbell is another amazing smart doorbell people should buy. Apart from regular Wi-Fi connected doorbell camera, DophiGo is powered by rechargeable high capacity battery enables it to run 180 days in standby mode, or runs 90 days under daily usage condition. DophiGo doorbell is equipped with a microUSB for battery recharging purpose, you can easily recharge it by using a regular cellphone charger. Most importantly, it uses a replaceable 18650 type battery, so that you can use another fully-charged one to replace exhausted battery and keep your doorbell operating. Utilizing Hisilicon ultra low power consumption SoC and embedded Huawei LiteOS system, it’s the secret why DophiGo doorbell is able to operate so many days by using a battery.