Number of IoT enabled devices are being tried and introduced every year and there is a healthy competition among researched and businesses to capitalize the space created by IoT, as these devices have a great market potential. Depending on the type of task involved and sensitive nature of data that the device handles, various IoT architectures, communication protocols and components are chosen and their performance is evaluated. This paper reviews such IoT enabled devices based on their architecture, communication protocols and functions in few key socially relevant fields like health care, farming, firefighting, women/individual safety/call for help/harm alert, home surveillance and mapping as these fields involve majority of the general public. It can be seen, to one's amazement, that already significant number of devices are being reported on these fields and their performance is promising. This paper also outlines the challenges involved in each of these fields that require solutions to make these devices reliable

翻译：每年都有大量物联网设备被尝试和引入，研究机构与企业之间围绕物联网技术带来的市场空间展开良性竞争，这些设备具有巨大的市场潜力。根据设备所处理任务的类型及敏感数据性质，研究人员会选择不同的物联网架构、通信协议和组件，并对其性能进行评估。本文回顾了基于这些设备的架构、通信协议及功能在医疗保健、农业、消防、女性/个人安全/求助/危险警报、家庭监控与地图测绘等关键社会相关领域中的应用——这些领域涉及广大公众群体。令人惊讶的是，在这些领域已有大量设备被报告，且其性能表现颇具前景。本文还概述了每个领域面临的挑战，这些挑战需要解决方案才能使设备变得可靠。