A method of selecting a Radio Access Technology, RAT, performed by a multi-mode wireless apparatus configured to communicate with a network node using the selected RAT, the method comprising: identifying a first RAT and a second RAT that are both coordinated by the network node, wherein a second system bandwidth of the second RAT and a first system bandwidth of the first RAT are both comprised within a third system bandwidth of a third RAT coordinated by the network node; characterized by determining a radio channel characteristic for a radio channel between the wireless apparatus and the network node by performing channel measurements; determining, based on the radio channel characteristic, an amount of data that can be communicated in a subframe, of the first and second RATs, between the wireless apparatus and the network node; selecting the one of the first RAT and the second RAT that results in a lower energy consumption at the wireless apparatus to communicate a determined amount of data between the wireless apparatus and the network node; wherein the selecting comprises: comparing the determined amount of data to a data threshold; where the data threshold is the amount of data that could be communicated in a subframe of the second RAT; selecting the first RAT if the determined amount of data exceeds the data threshold; and selecting the second RAT if the determined amount of data meets or is less than the data threshold; wherein the first RAT comprises an evolved Machine Type Communication, eMTC, RAT, the second RAT comprises a Narrow Band Internet of Things, NB-loT, RAT, and the third RAT comprises a Long Term Evolution, LTE, RAT; and the method further comprises using the selected RAT for communications between the wireless apparatus and the network node. identifying a first RAT and a second RAT that are both coordinated by the network node, wherein a second system bandwidth of the second RAT and a first system bandwidth of the first RAT are both comprised within a third system bandwidth of a third RAT coordinated by the network node; characterized by determining a radio channel characteristic for a radio channel between the wireless apparatus and the network node by performing channel measurements; determining, based on the radio channel characteristic, an amount of data that can be communicated in a subframe, of the first and second RATs, between the wireless apparatus and the network node; selecting the one of the first RAT and the second RAT that results in a lower energy consumption at the wireless apparatus to communicate a determined amount of data between the wireless apparatus and the network node; wherein the selecting comprises: comparing the determined amount of data to a data threshold; where the data threshold is the amount of data that could be communicated in a subframe of the second RAT; selecting the first RAT if the determined amount of data exceeds the data threshold; and selecting the second RAT if the determined amount of data meets or is less than the data threshold; wherein the first RAT comprises an evolved Machine Type Communication, eMTC, RAT, the second RAT comprises a Narrow Band Internet of Things, NB-loT, RAT, and the third RAT comprises a Long Term Evolution, LTE, RAT; and comparing the determined amount of data to a data threshold; where the data threshold is the amount of data that could be communicated in a subframe of the second RAT; selecting the first RAT if the determined amount of data exceeds the data threshold; and selecting the second RAT if the determined amount of data meets or is less than the data threshold; wherein the first RAT comprises an evolved Machine Type Communication, eMTC, RAT, the second RAT comprises a Narrow Band Internet of Things, NB-loT, RAT, and the third RAT comprises a Long Term Evolution, LTE, RAT; and