Here is a table so you can compare some of the current smart home systems. The information here has been provided by the manufacturers. As you can see, there are many different types of systems out there and more coming all the time so one needs to take a wide view of the needs and wants before deciding on the road to follow.

Hope this helps you make that decision and if you know of other systems that should be added here please let us know news@hometoys.com

SMART HOME SYSTEM COMPARISON CHART

SystemProtocols InteroperablilityDevicesInstallation SkillsDetailsProfile
WinkBluetooth LE, Wi-Fi, ZigBee, Z-Wave, Lutron ClearConnect, and Kidde.Protocol-agnosticHubs, Controllers, Software / AppsDIYWinkWink
SmartenitX10, INSTEON, ZigBee, WiFi/ IPOpen ArchitectureHubs, Controllers, Network Devices, Software / Apps, Security  Lighting and Automation,  HVAC / Energy Management,  Entertainment System Control,  Water management – leak detection, IrrigationDIYSmartenitSmartenit
OkidokeysBluetooth 4.0Open API allows integration with most any platformDoor LocksDIYOkidokeysOkidokeys
Fantem OomiNFC for setup, ZWave, BLE, Wi-fiZigbee and others coming soonHubs, Controllers, Software / Apps, Lighting and Automation,  HVAC / Energy Management,  Entertainment System ControlDIYFantem OomiFantem Oomi
D-Link SystemsWi-Fi and Z-WaveSome DevelopmentHubs, Controllers, Network Devices, Software / Apps, Lighting and AutomationDIYD-Link SystemsD-Link Systems
BlackloudWiFiNoNetwork Devices, Lighting and Automation, Entertainment System Control, Smart sprinkler (Coming Soon)DIYBlackloudBlackloud
LifeSmartRF433 GFSKLifeSmart communicates with IKAIR through Cloud protocol, and communicates with SONOS &  Phillips hue through  LAN protocol.Controllers, Software/Apps, Security, Lighting and AutomationDIYLifeSmartLifeSmart
NeurioWiFiopen APIHubs, Network Devices, Software / Apps, HVAC / Energy ManagementDIY / ElectricianNeurioNeurio
InsteonInsteonwork with other protocols via cloud-to-cloud or TCP/IPHubs, Controllers, Network Devices, Software / Apps, Security, Lighting and Automatio, HVAC / Energy ManagementDIYInsteonInsteon
Simply AutomatedUPB technologyAny products that can output an RS-232 serial string can utilize UPB devices.Controllers, Lighting and Automation DevicesDIY / ElectricianSimply AutomatedSimply Automated
VivintZ-WaveNoHubs, Controllers, Network Devices, Software / Apps, Security, Lighting and Automation, HVAC / Energy ManagementTrained field service professionals.VivintVivint
SmartThingsZ-wave, Zigbee, WiFi and the newest version of the hub will include support for additional protocols such as Bluetooth Smart.SmartThings works with all top brands and unifies them into one app experience.Hubs, Software / Apps, Security, Lighting and AutomationDIYSmartThingsSmartThings
CrestroninfiNET EX Crestron control intelligence is embedded into popular manufacturers equipmentHubs, Controllers, Network Devices, Software / Apps, Lighting and Automation, HVAC / Energy Management,  Entertainment System Control, Shading solutions, speakers, amps, audio distribution, video distributionCrestron Authorized integrators CrestronCrestron
TIOWi-FiIP, Serial, Contact Closure, and IRControllers, Network Devices, Software / Apps, Lighting and Automation, HVAC / Energy Management, Entertainment System ControlSystems integration professionalTIOTIO
HomeSeerZ-Wave, Insteon, X10, UPB, PLCBUS, Nest, HUE, Sonos, IFTTT and many moreall brands of Z-Wave products Controllers, Network Devices, Software / Apps, Security, Touchscreens, Security, Lighting and Automation, HVAC / Energy Management, Entertainment System Control, Z-Wave sensors, Z-Wave water valves, outdoor intrusion detection products, Energy monitorsDIYHomeSeerHomeSeer
ECS (Event Control System) X10, Insteon, Z-Wave, Ethernet (TCP/IP, UDP, SNMP, WiFi), Serial (RS232/RS485), ModBus, BACNET, Video (most netcams and all webcams), Infrared, Databases (SQL, ODBC)X10, Insteon, Z-Wave, ModBus, BACNETNone (just our software)DIYECSECS
iSmartAlarm Proprietary radio frequency, and Z-Wave and Zigbee is expected available in 2015IFTTT, Thread, and HomeKit development underway. Z-Wave and Zigbee expansion soonHubs, Controllers, Network Devices, Software / Apps, Security, Lighting and AutomationDIYiSmartAlarm iSmartAlarm